TDA8026 Multiple smart card slot interface IC Rev. 1 — 9 March 2010 Product data sheet 1. General description The TDA8026 is a cost-effective, analog interface for addressing multiple smart card slots in a Point Of Sales (POS) terminal. It can address up to two main cards (synchronous or asynchronous smart cards supported) and up to four Security Access Modules (SAMs). Its packaging supports the latest payment terminal security requirements. 2. Features and benefits n n n n n n n n n n n n n n n n I2C-bus controlled IC card interface in a TFBGA64 package Supply voltage between 2.7 V and 5.5 V Dedicated microcontroller interface supply voltage (VDD(INTF)) Shutdown mode ensures very low power consumption when the TDA8026 is inactive Programmable power reduction modes triggered when the card slots are inactive VCC(n) generation via DC-to-DC converter: two card slots can be fully loaded, the three others in reduced consumption mode Two clock input pins: CLKIN1 for card slot 1 and CLKIN2 for card slots 2 to 5 Two transparent I/O lines on microcontroller side, one for card slot 1 and the other for card slots 2 to 5 Five protected, half-duplex, bidirectional, buffered I/O lines with current limitation at ± 15 mA and a maximum frequency 1 MHz Two I2C-bus controlled auxiliary I/O lines VCC(n) regulation on all card slots at ICC ≤ 55 mA: u 5 V, 3 V or 1.8 V ± 5 % u Current spikes of 40 nAs up to 20 MHz for 5 V cards with controlled rise and fall times u Current limitation of approximately 100 mA Thermal protection and short-circuit protection on all card contacts Automatic activation and deactivation sequences initiated by the software or hardware in the event of a short-circuit, card take-off or voltage drop-out for VDD(INTF), VDD or VUP Enhanced ElectroStatic Discharge (ESD) protection on the card-side up to 6 kV 20 MHz clock input Card clock generation up to 20 MHz and dividable by 1, 2, 4 or 5 with synchronous frequency changes: u Stop, HIGH or LOW u Clock frequency between 1 MHz and 2.2 MHz in card low-power mode u Current limitation on pin CLK(n) TDA8026 NXP Semiconductors Multiple smart card slot interface IC n RST(n) signal lines with current limitation at 20 mA, controlled by an embedded programmable clock pulse counter on asynchronous cards or by a register on synchronous cards n ISO 7816-3 and EMV 4.2 payment systems compatibility n VDD(INTF) supply voltage supervisor ensures correct communication between microcontroller and circuit; threshold internally fixed or set using an external resistor bridge n VDD supply voltage supervisor for spike suppression during power-on and emergency deactivation at power-off; threshold internally fixed n Card presence input with a 17.8 ms (typical) built-in debouncing system on card slots 1 and 2 n One interrupt signal (IRQN) 3. Applications n Point Of Sale terminals n Multiple SAM contact readers 4. Quick reference data Table 1. Quick reference data VDD = VDD(INTF) = 3.3 V; fclk(ext) = 10 MHz; GND = 0 V; inductor = 10 µH; decoupling capacitors on pins VDD and VUP = 10 µF; Tamb = 25 °C unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit supply voltage on pin VDD; DC-to-DC converter on [1] 2.7 - 5.5 V [1] on pin VDD; DC-to-DC converter off and VCC(n) pin = 5 V 5.25 - 5.5 V shutdown mode - 25 40 µA Standby mode - 300 450 µA clock-stop mode; all card slots in this mode; fclk(ext) stopped on pins CLK(n); pins CLKIN1 and CLKIN2 either stopped, HIGH-level or LOW-level - 3.7 - mA - 210 260 mA 1.6 - 3.6 V Supply VDD IDD supply current active mode; all VCC(n) pins = 5 V; fclk(ext) on pins CLK(n) = 5 MHz; ICC(1) = ICC(2) = 55 mA; ICC(3) = ICC(4) = ICC(5) = 2 mA VDD(INTF) interface supply voltage on pin VDD(INTF) IDD(INTF) interface supply current shutdown mode active mode; all VCC(n) pins = 5 V; fclk(ext) on pins CLK(n) = 5 MHz TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 [2] [3] - 10 15 µA - 35 - µA © NXP B.V. 2010. All rights reserved. 2 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC Table 1. Quick reference data …continued VDD = VDD(INTF) = 3.3 V; fclk(ext) = 10 MHz; GND = 0 V; inductor = 10 µH; decoupling capacitors on pins VDD and VUP = 10 µF; Tamb = 25 °C unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit 5 V card; DC ICC(n) ≤ 55 mA 4.75 5 5.25 V 3 V card; DC ICC(n) ≤ 55 mA 2.85 3 3.15 V 1.71 1.8 1.89 V 5 V card; current spikes of 40 nAs 4.65 - 5.35 V 3 V card; current spikes of 17.5 nAs 2.76 - 3.24 V Card supply voltage pins: VCC(1) to VCC(5) VCC supply voltage [4] active mode; 2.7 V < VDD < 5.5 V [5] 1.8 V card; DC ICC(n) ≤ 35 mA active mode; AC current pulses with I < 200 mA, t < 400 ns and f < 20 MHz [5] 1.62 - 1.98 V Vripple(p-p) peak-to-peak ripple voltage 20 kHz to 200 MHz with default Register6 (Slew Rate register) settings 1.8 V card; current spikes of 11.1 nAs - - 350 mV ICC supply current VCC(n) = 5 V - - 55 mA VCC(n) = 3 V - - 55 mA VCC(n) = 1.8 V - - 35 mA sum of all card supply currents on pins VCC(n); active mode; All VCC pins = 5 V; fclk(ext) on pins CLK(n) = 5 MHz; ICC(1) = ICC(2) = 55 mA; ICC(3) = ICC(4) = ICC(5) = 2 mA [3] - total sequence [6] 60 80 100 µs - 17.8 23.8 ms - 455 665 mW −25 +25 +85 °C 116 125 mA General tdeact deactivation time tdeb debounce time Ptot total power dissipation Tamb ambient temperature Tamb = −25 °C to +85 °C [1] Refer to Section 8.6 for further information about the DC-to-DC converter operation. [2] Typical value measurement based on a 85 % DC-to-DC converter and inductance efficiency; depends on PCB layout and external component quality (inductor, capacitor). [3] Maximum value measurement based on a 125 mA (sum of all card supply currents on pins VCC(n)) current load and a 75 % DC-to-DC converter and inductance efficiency; depends on PCB layout and external component quality (inductor, capacitor). [4] Two ceramic multilayer 100 nF (minimum) capacitors with a low Equivalent Series Resistance (ESR) should be used to meet these specifications. [5] Output voltage to the card including ripple. [6] Refer to Section 8.8.3 for further information. 5. Ordering information Table 2. Ordering information Type number Package Name Description Version TDA8026ET/C2 TFBGA64 plastic thin fine-pitch ball grid array package; 64 balls SOT1073-1 TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 3 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 6. Block diagram VDD VDD(INTREGD) GNDP GND2 to GND10 LX H4 VDD(INTF) B4 A7 A6 G4 VUP H5 D3 to D5,E4,E5, F3 to F5, H8 A4 PORADJ DCDC_OFF SDWNN VDD(INTF) A8 B8 A5 SEQUENCER POWER MANAGEMENT UNIT VCC GENERATOR STEP UP CONVERTER RST BUFFER A4 CLK BUFFER I/O BUFFER I/O BUFFER I/O BUFFER SCL SDA IRQN A0 INTAUXN I/OUC1 I/OUC2 CLKIN1 CLKIN2 SPRES TESTMODE INHIB G2 F2 E3 G1 F1 B2 PRES DETECTION C2 H2 H3 VCC(1) RST(1) CLK(1) I/O(1) C4(1) C8(1) PRES(1) GNDC(1) E2 SEQUENCER E1 VCC GENERATOR TDA8026 D2 INTERFACE AND CONTROL UNIT C4 C5 RST BUFFER CLK BUFFER C3 I/O BUFFER B3 PRES DETECTION G5 G6 G7 F7 F8 G8 H1 A3 SEQUENCER SEQUENCER SEQUENCER H7 VCC GENERATOR VCC GENERATOR VCC GENERATOR RST BUFFER RST BUFFER RST BUFFER CLK BUFFER CLK BUFFER CLK BUFFER I/O BUFFER I/O BUFFER I/O BUFFER D1 C1 B1 A1 A2 STAP5 STAP3 TST1 STAP4 TST2 C7 B7 B6 B5 I/O(5) RST(5) CLK(5) D7 C6 D6 E7 D8 I/O(4) RST(4) CLK(4) VCC(5) Fig 1. G3 E6 F6 C8 VCC(2) RST(2) CLK(2) I/O(2) PRES(2) GNDC(2) GNDS E8 I/O(3) RST(3) CLK(3) VCC(4) VCC(3) 001aal083 TDA8026 Block diagram TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 4 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 7. Pinning information 7.1 Pinning TDA8026 ball A1 index area 1 2 3 4 5 6 7 8 A B C D E F G H 001aal084 Transparent top view Fig 2. TDA8026 pin configuration for the TFBGA64 package Table 3. TDA8026 ball map Ball position[1][2] 1 2 3 A TST2 TST1 TESTMODE VDD(INTF) SDWNN VDD(INTREGD) VDD B STAP3 SCL CLKIN2 GND1 VCC(5) RST(5) CLK(5) DCDC_OFF C STAP4 SDA CLKIN1 I/OUC1 I/OUC2 CLK(4) I/O(5) GNDS Product data sheet 5 6 7 8 PORADJ D STAP5 INTAUXN GND2 GND3 GND4 RST(4) I/O(4) VCC(4) E A0 IRQN I/O(1) GND5 GND6 CLK(3) I/O(3) VCC(3) F C8(1) CLK(1) GND7 GND8 GND9 RST(3) I/O(2) PRES(2) G C4(1) RST(1) VCC(1) GNDP VCC(2) RST(2) CLK(2) GNDC(2) GNDC(1) LX VUP n.c. INHIB GND10 H SPRES PRES(1) TDA8026_1 4 [1] The numbers in subscript and between brackets “(n)” indicate the relevant card slot. [2] The ball positions are those when the TDA8026 is viewed from the top. All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 5 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 7.2 Pin description Table 4. Pin description Symbol Pin Type[1] Supply power Description IRQN E2 O VDD(INTF) microcontroller interrupt; active LOW; open-drain INTAUXN D2 I VDD(INTF) auxiliary interrupt line input: auxiliary contact reader front end not connected: connect INTAUXN pad to supply voltage VDD(INTF) auxiliary contact reader front end connected: connect INTAUXN pad to an external 10 kΩ pull-up resistor; active LOW SDWNN A5 I[3] VDD(INTF) shutdown and reset input; active LOW VDD(INTF) A4 P VDD(INTF) SDA C2 I/O VDD(INTF) serial data line to and from the I2C-bus master; open-drain SCL B2 I VDD(INTF) serial clock line from the I2C-bus master A0 E1 C VDD(INTF) I2C-bus address configuration and selection SPRES H1 C VDD(INTF) PRES mode[2] configuration and selection CLKIN1 C3 I VDD(INTF) card slot 1 external clock input; connect external clock (fclk(ext)) to generate the CLK(1) frequency CLKIN2 B3 I VDD(INTF) card slots 2 to 5 external clock input; connect external clock (fclk(ext)) to generate the CLK(2) to CLK(5) frequency GND1 B4 G - I/OUC1 C4 I/O[3] VDD(INTF) card slot 1 microcontroller data input and output I/OUC2 C5 I/O[3] VDD(INTF) card slots 2 to 5 microcontroller data input and output VCC(1) G3 P VCC(1) card slot 1 card supply; position C1 RST(1) G2 O VCC(1) card slot 1 card reset output; position C2 CLK(1) F2 O VCC(1) card slot 1 card clock output; provides fCLK; position C3 G1 I/O[4] VCC(1) card slot 1 auxiliary input and output; position C4 F1 I/O[4] VCC(1) card slot 1 auxiliary input and output; position C8 I/O(1) E3 I/O[4] VCC(1) card slot 1 card input and output; position C7 GNDC(1) H3 G - card slot 1 card ground signal; position C5 PRES(1) H2 I VDD(INTF) card slot 1 card presence input VCC(2) G5 P VCC(2) card slot 2 card supply; position C1 RST(2) G6 O VCC(2) card slot 2 card reset; position C2 CLK(2) G7 O VCC(2) card slot 2 card clock output; provides fCLK; position C3 I/O(2) F7 I/O[4] VCC(2) card slot 2 card input and output; position C7 GNDC(2) G8 G - card slot 2 card signal ground; position C5 C4(1) C8(1) TDA8026_1 Product data sheet microcontroller interface supply voltage ground connection PRES(2) F8 I VDD(INTF) card slot 2 card presence input GNDS C8 G - card slots 3 to 5 card signal ground; position C5 VCC(3) E8 P VCC(3) card slot 3 card supply; position C1 RST(3) F6 O VCC(3) card slot 3 card reset output; position C2 CLK(3) E6 O VCC(3) card slot 3 card clock output; provides fCLK; position C3 I/O(3) E7 I/O[4] VCC(3) card slot 3 card input and output; position C7 All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 6 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC Table 4. Pin description …continued Symbol Pin Type[1] Supply power Description VCC(4) D8 P VCC(4) card slot 4 card supply; position C1 RST(4) D6 O VCC(4) card slot 4 card reset output; position C2 CLK(4) C6 O VCC(4) card slot 4 card clock output; provides fCLK; position C3 I/O(4) D7 I/O[4] VCC(4) card slot 4 card input and output; position C7 VCC(5) B5 P VCC(5) card slot 5 card supply; position C1 RST(5) B6 O VCC(5) card slot 5 card reset output; position C2 CLK(5) B7 O VCC(5) card slot 5 card clock output; provides fCLK; position C3 I/O(5) C7 I/O[4] VCC(5) card slot 5 card input and output; position C7 TST1 A2 C VDD(INTF) test pin; connect to ground TST2 A1 C VDD(INTF) test pin; connect to ground STAP3 B1 I VDD(INTF) card slot 3 presence status input[5] STAP4 C1 I VDD(INTF) card slot 4 presence status input[5] STAP5 D1 I VDD(INTF) card slot 5 status presence input[5] n.c. H6 - - PORADJ A8 I VDD(INTF) power-on reset threshold input for VDD(INTF): not connected threshold used: connect pin PORADJ using an external resistor bridge threshold not used: connect to VDD(INTF) TDA8026_1 Product data sheet VDD A7 P VDD main supply voltage VUP H5 O VUP DC-to-DC converter output LX H4 I LX DC-to-DC converter power supply input GNDP G4 G - DC-to-DC converter ground VDD(INTREGD) A6 O VDD internal voltage regulator output DCDC_OFF B8 C VDD(INTF) DC-to-DC converter on/off control; active HIGH INHIB H7 C VDD(INTF) connect to ground TESTMODE A3 C VDD(INTF) connect to ground GND2 D3 G - ground GND3 D4 G - ground GND4 D5 G - ground GND5 E4 G - ground GND6 E5 G - ground GND7 F3 G - ground GND8 F4 G - ground GND9 F5 G - ground GND10 H8 G - ground [1] I = Input, O = Output, P = Power, G = Ground, C = Configuration. [2] Refer to the Application note AN10724 for further information. [3] Integrated pull-up to VDD(INTF) value. [4] Integrated pull-up to the related VCC(n) value. [5] In Shutdown mode, set to LOW. All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 7 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 8. Functional description Remark: Throughout this document ISO 7816-3 and EMV standard terminology conventions have been adhered to and it is assumed that the reader is familiar with these. 8.1 Power supplies The TDA8026 supply pins are VDD, VDD(INTF) and GND1 to GND10. • VDD must be between 2.7 V and 5.5 V • VDD(INTF) must be between 1.6 V and 3.6 V The VDD, VDD(INTF) supply voltages can be applied to the device at any time, in any sequence. All interface signals to the system controller are referenced to the VDD(INTF) supply voltage which can be lower or higher than VDD. The integrated DC-to-DC converter generates the card supply voltage (VCC(n)) of either 5 V , 3 V or 1.8 V (± 5 %). In addition, the internal voltage regulator delivers VDD(INTREGD) 3.3 V supply voltage. POWER ON RESET supply failure (VDD(INTF), VDD) SHDWN = 1 supply failure (VDD(INTF), VDD) activation command SHUTDOWN MODE STANDBY MODE deactivation command for all card slots SDWNN = 0 VCC(n) overcurrent on a card slot DEACTIVATION ACTIVE OF FAULTY MODE(1) CARD SLOT(2) temperature failure or DC-to-DC converter overload SDWNN = 0 001aal085 (1) Active mode; DC-to-DC converter is ON. (2) VCC(n) overcurrent on a card slot causes deactivation of a faulty card slot. All others remain active. Fig 3. TDA8026 Power diagram 8.2 Power modes Three power modes are available for the TDA8026. These are: • Standby mode • Active mode with a clock-stop sub-mode • Shutdown mode TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 8 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 8.2.1 Standby mode In Standby mode, both the supply voltages VDD and VDD(INTF) are applied within the specification limits as described in Table 40 on page 39. In addition, the DC-to-DC converter is not running and the card slots are not activated. 8.2.2 Active mode In active mode, both the VDD and VDD(INTF) supply voltages are applied to the device within the specification limits as described in Table 40 on page 39. A minimum of one card slot is activated. All card slots can be activated at once and communication performed with up to two cards slots. The DC-to-DC converter has been developed to handle a 116 mA (typical) DC load. This allows two active card slots to communicate with a load of 55 mA while the three remaining card slots are in clock-stop mode (see Section 8.2.3 for information about this mode) with a 2 mA load. The DC-to-DC converter overload protection is triggered when a higher current load than specified in Table 40 on page 39 is supplied to the DC-to-DC converter (see Section 8.11 for further information). 8.2.3 Clock-stop mode Clock-stop mode is a low-power mode which is triggered when a card is activated without any communication. In this mode, a supply voltage with a low frequency clock is applied to cards that do not support the clock-stop feature. 8.2.4 Shutdown mode Shutdown mode is the very low power consumption mode, typically 25 µA. The TDA8026 enters this mode when the SDWNN pin is driven LOW. Only presence monitoring on card slot 1 remains enabled. When card insertion or removal is detected on card slot 1, an interrupt signal (IRQN) is sent to the microcontroller. In shutdown mode, it is assumed that the VDD(INTF) and VDD supply voltages are stable and the SDWNN pin is active LOW. 8.2.4.1 Entering shutdown mode Shutdown mode is activated when the SDWNN pin is driven LOW. On entering this mode: 1. All card slots are automatically deactivated 2. The power consumption is reduced on completion of the deactivation sequence. This causes the following: • Digital module moves in to reset mode. However, card presence monitoring on slot 1 continues to operate normally • All card slots are disabled and all card pins are forced to 0 V. Again, card presence monitoring on slot 1 continues to operate normally • Thermal protection is disabled • The DC-to-DC converter is bypassed • All interface signal pull-up resistors are disconnected from their supply rail (except the pull-up resistor on the SDWNN pin) TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 9 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC • I/OUC1 and I/OUC2 are set to high-impedance. SDWNN (1) DEACTIVATION card slot (2) internal digital reset Fig 4. 8.2.4.2 shutdown state 001aal086 The enter shutdown sequence Exiting shutdown mode The TDA8026 performs the following steps when exiting shutdown mode: 1. Card insertion on card slot 1 is signalled by the IRQN pin signal being driven LOW. 2. Using the IRQN pin signal, the microcontroller detects the card insertion and drives the SDWNN pin HIGH to wake-up the TDA8026 3. When the SDWNN pin is HIGH, the IRQN pin is set to HIGH and the analog module is powered-up. A full power-up sequence is executed by the TDA8026 4. When the TDA8026 is ready, the IRQN pin is set to LOW 5. The microcontroller detects the device interrupt using the IRQN pin and services it which resets pin IRQN to HIGH PRES(1) 1 5 IRQN 2 3 SDWNN 4 internal digital reset shutdown state Fig 5. TDA8026_1 Product data sheet 2tw ready for activation 001aal087 The exit shutdown sequence All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 10 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 8.3 Voltage supervisors 8.3.1 Block diagram VDD(INTF) R1 PORADJ VDD(INTREGD) R2 REFERENCE VOLTAGE VDD(INTREGD) 001aai961 Fig 6. The voltage supervisor circuit 8.3.2 Description The voltage supervisor can be used to perform Power-On Resets (POR) and supply drop detection during a card session. The supervisors control the internal regulated supply voltage (VDD(INTREGD)) and the microcontroller interface supply voltage (VDD(INTF)) to ensure problem-free operation of the TDA8026. This block controls: • VDD using the internal voltage regulator’s output (VDD(INTREGD)) • the microcontroller interface supply voltage (VDD(INTF)) using the voltage on the PORADJ pin (VPORADJ) When an alarm occurs, the internal digital controller resets the TDA8026. VDD VDD(INTREGD) Vth + Vhys Vth supply drop power-up VDD(INTREGD) device ready for activation ALARMN (internal signal) Fig 7. TDA8026_1 Product data sheet twake device ready for activation twake 001aal088 VDD voltage supervisor All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 11 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC VDD(INTF) supply drop Vth + Vhys Vth power-up VDD(INTREGD) device ready for activation ALARMN (internal signal) Fig 8. twake device ready for activation twake 001aal089 VDD(INTF) voltage supervisor Remark: Refer to the Application note AN10724 for further information. 8.3.3 VDD(INTREGD) voltage supervisor without external divider on PORADJ pin An alarm signal is triggered and the analog controller resets the TDA8026 when: • VDD(INTREGD) is less than Vth on pin VDD(INTREGD) • Pin PORADJ monitoring VDD(INTF) is less than Vth The alarm is reset and the TDA8026 leaves reset mode 8 ms after VDD and VPORADJ are above their respective Vth + Vhys. Vth on VDD(INTF) is set as shown in Equation 1: R2 V th = V bg 1 + ------- R1 (1) Thus Vbg = 1.21 V (see Figure 6). In reset mode, the TDA8026 is inactive and does not respond to any external command lines. TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 12 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 8.4 I2C-bus description Remark: Refer to the I2C-bus specification for more information. The I2C-bus interface in the TDA8026 is an I2C-bus slave operating either Standard mode (100 kHz) or Fast mode (400 kHz). In addition, it integrates shift register functions, shift timing generation and slave address recognition. 8.4.1 I2C-bus protocol The I2C-bus protocol is based on bidirectional, 2-line communication between ICs or modules. The serial bus consists of two bidirectional lines: one for data signals (SDA) and one for clock signals (SCL). Both the SDA and SCL lines must be connected to the VDD(INTF) supply voltage using a pull-up resistor (refer to the I2C-bus specification for more details). The I2C-bus protocol is defined as follows: • Data transfer can only be initialized when the I2C-bus is not busy. • During data transfer, the data line must remain stable when the clock line is HIGH. Changes in the data line while the clock line is HIGH are interpreted as control signals. 8.4.2 Bus conditions The following bus conditions are defined. Bus not busy — Both data and clock lines remain HIGH. Start data transfer — The START condition is generated when the state of the data line changes from HIGH to LOW while the clock line is HIGH. Stop data transfer — The STOP condition is generated when the state of the data line changes from LOW to HIGH while the clock line is HIGH. Data valid — The data line state represents valid data, after a START condition with the data line stable for the duration of the clock signal HIGH period. There is one clock pulse per bit of data. 8.4.3 Data transfer Each data transfer is triggered by a START condition and finished by a STOP condition (see Figure 13 for timing information). Data transfers can be performed in Standard mode at 100 kHz or Fast mode at 400 kHz. Data transfer is performed on a byte for byte basis in both read or write modes. The information is transmitted in bytes and each receiver acknowledges with a 9th bit (acknowledge). Each byte is followed by an acknowledge bit and the transmitter must release the SDA line during the acknowledge bit. The master generates an extra acknowledge related clock pulse. The addressed slave receiver must generate an acknowledge bit after receiving each byte. The master-receiver must generate an acknowledge bit after receiving each byte clocked out of the slave transmitter. The acknowledging device must pull-down the SDA line during the acknowledge clock pulse to ensure the SDA line is stable LOW during the acknowledge related clock pulse HIGH period. TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 13 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC In addition, the set-up and hold times must be taken into account. The master-receiver must signal the end of the last data byte to the slave transmitter by not sending an acknowledge bit on the last byte that has been clocked out of the slave. The transmitter must ensure the data line is HIGH to enable the master to generate the STOP condition. 8.4.4 Device addressing Three device addresses are needed to control the TDA8026. • One high address: The high address enables selection of a bank page (Bank 0 or Bank 1) based on a configuration byte. A bank page relates to a card slot or general registers. See Table 7 for detailed information. • Two low addresses: The microcontroller uses two low addresses to read and write into the selected bank page (see Table 6 on page 14 to Table 39 on page 37 for detailed information). The addresses for the device are shown in Table 5 and Table 6. Table 5. Base addressing Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 0 1 0 0 1 A0 0 R/W Bit 1 is the address bit which selects Register0 or Register1. Bit 0 defines either Read or Write mode. • When bit 0 is set to logic 1, read mode is selected • When bit 0 is set to logic 0, write mode is selected Table 6. Write mode addresses A0 Pin Bank 0 base register address (Hex) Bank 1 Register0 address Bank 1 Register1 (Hex) address (Hex) 0 48h 40h 42h 1 4Ch 44h 46h Bank 1 page selection is performed when the configuration byte (CSb[7:0]) is written to the high address representing bank 0 based on the A0 pin value. Using pin A0, two TDA8026s can be used in parallel based on the selection made to the address selection pin A0. Pin A0 is externally hardwired to the pins VDD(INTF) or GND. The voltage on the A0 pin sets the bit 2 address bit TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 14 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 8.5 Banks and registers The device registers enable the microcontroller to control the TDA8026. These registers are defined as banks: • Bank 0 register is a read/write register which enables selection of the required card slot number and access to the corresponding registers Bank 1 registers. In addition, Bank 0 is used to write information about the interrupt status and the product version. The registers in bank 0 (CSb[7:0] = 1h to 5h) are similar to the registers of the TDA8023. • Bank 1 provides access to the corresponding card slot registers. Bank 1 is composed of several pages which in turn contain registers related to each individual card slot or general registers. Typically, pages can contain two general registers or five card slot related registers. Remark: The registers are organized in bank pages in order to keep compatibility with the TDA8023. Bank 1 page selection is performed when the configuration byte (CSb[7:0]) is written to the high I2C-bus address representing bank 0 based on the A0 pin. TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 15 of 59 xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx Table 7. NXP Semiconductors TDA8026_1 Product data sheet 8.5.1 Register overview Register overview Page number/ register Subaddress (Hex)[1] Register name R/W Bit definition Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Reset value (Binary) Bank 0: Card slot selection, product version and interrupt registers (see Table 8 and Table 9) -/48h CSb R/W CSb[7:0] 0000 0001 Bank 1: Card slot registers (see Table 11 through Table 33) Slot 1 Rev. 1 — 9 March 2010 Register0 R ACTIVE EARLY MUTE PROT 01h/40h Register0 W VCC1V8 I/OEN 01h/42h Register1[3] R/W -[2] RSTIN 01h/42h Register1[4] R/W D[7:0] 1010 1010 01h/42h Register1[5] R/W C[15:8] 1010 0100 01h/42h Register1[6] R/W C[7:0] 0111 0100 02h/40h Register0 R ACTIVE EARLY 02h/40h Register0 W VCC1V8 I/OEN REG[1:0] 02h/42h Register1[3] R/W RSTIN -[2] 02h/42h Register1[4] R/W D[7:0] 1010 1010 02h/42h Register1[5] R/W C[15:8] 1010 0100 02h/42h Register1[6] R/W C[7:0] 0111 0100 03h/40h Register0 R ACTIVE EARLY 03h/40h Register0 W VCC1V8 I/OEN REG[1:0] 03h/42h Register1[3] R/W RSTIN -[2] 03h/42h Register1[4] R/W D[7:0] 1010 1010 03h/42h Register1[5] R/W C[15:8] 1010 0100 03h/42h Register1[6] R/W C[7:0] 0111 0100 REG[1:0] C81 C41 SUPL CLKSW PRESL PRES 0000 1000 PDWN 5V/3VN WARM START 0000 0000 CLKPD[1:0] CLKDIV[1:0] 0111 1111 Slot 2 CFGP2 MUTE PROT SUPL CLKSW PRESL PRES 0000 1000 PDWN 5V/3VN WARM START 0000 0000 CLKPD[1:0] CLKDIV[1:0] 0100 1111 Slot 3 -[2] MUTE PROT SUPL CLKSW -[2] STAP3 0000 1000 PDWN 5V/3VN WARM START 0000 0000 CLKPD[1:0] CLKDIV[1:0] 0100 1111 TDA8026 16 of 59 © NXP B.V. 2010. All rights reserved. Multiple smart card slot interface IC All information provided in this document is subject to legal disclaimers. 01h/40h xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx Register overview …continued Page number/ register Subaddress (Hex)[1] R/W Bit definition 04h/40h Register0 R ACTIVE EARLY 04h/40h Register0 W VCC1V8 I/OEN REG[1:0] 04h/42h Register1[3] R/W RSTIN -[2] 04h/42h Register1[4] R/W D[7:0] 1010 1010 04h/42h Register1[5] R/W C[15:8] 1010 0100 04h/42h Register1[6] R/W C[7:0] 0111 0100 05h/40h Register0 R ACTIVE EARLY 05h/40h Register0 W VCC1V8 I/OEN REG[1:0] 05h/42h Register1[3] R/W RSTIN -[2] 05h/42h Register1[4] R/W D[7:0] 1010 1010 05h/42h Register1[5] R/W C[15:8] 1010 0100 05h/42h Register1[6] R/W C[7:0] 0111 0100 PV[7:0] 1100 0010 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Reset value (Binary) Slot 4 -[2] MUTE PROT SUPL CLKSW -[2] STAP4 0000 1000 PDWN 5V/3VN WARM START 0000 0000 CLKPD[1:0] CLKDIV[1:0] 0100 1111 Slot 5 -[2] MUTE PROT SUPL CLKSW -[2] STAP5 0000 1000 PDWN 5V/3VN WARM START 0000 0000 CLKPD[1:0] CLKDIV[1:0] 0100 1111 Bank 1: General registers (see Table 34 through Table 39) 00h/42h Product version R 00h/42h Interrupt status R 06h/40h Slew rate R/W -[2] INTAUX CLK_SR[3:2] See Table 8, Table 9 and Table 11 through Table 39 for detailed information. Reserved bit position. [3] REG[1:0] = 00 depending on the setting for Bank1 CSb[7:0]. [4] REG[1:0] = 01 depending on the setting for Bank1 CSb[7:0]. [5] REG[1:0] = 10 depending on the setting for Bank1 CSb[7:0]. [6] REG[1:0] = 11 depending on the setting for Bank1 CSb[7:0]. CLK_SR[1:0] 0001 1111 IO_SR[1:0] 0100 0100 TDA8026 17 of 59 © NXP B.V. 2010. All rights reserved. [1] [2] IO_SR[3:2] INT[4:0] Multiple smart card slot interface IC All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 Register name NXP Semiconductors TDA8026_1 Product data sheet Table 7. TDA8026 NXP Semiconductors Multiple smart card slot interface IC 8.5.2 Bank 0 register description The device registers enable the microcontroller to control the TDA8026. The registers are organized in bank pages to ensure compatibility with the TDA8023. Bank 0 write register enables selection of the card slot number and access to the corresponding registers in bank 1. The card slot registers in bank 1 are accessed using the configuration byte (CSb[7:0]). The range 01h to 05h is used to select the specific card slot starting at card slot 1 (01h) and ending with card slot 5 (05h) in a similar way to the TDA8023 registers. 8.5.2.1 Bank 0 register (address: 48h) bit allocation Table 8. Bit 8.5.2.2 Bank 0 register (address: 48h) bit allocation 7 6 5 4 3 Symbol CSb[7:0] Access R/W 2 1 0 Bank 0 bit description Table 9. Bit Bank 0 bit description Symbol Value 7 to 0 CSb[7:0] Description Bank 1 page selection: 00h selects product version and interrupts status register page 01h selects card slot 1 page 02h selects card slot 2 page 03h selects card slot 3 page 04h selects card slot 4 page 05h selects card slot 5 page 06h selects the clock frequency and I/O lines slew rate settings page 8.5.3 Bank 1 card slots 1 and 2 register descriptions 8.5.3.1 Bank 1 CSb[7:0] Register0 (address 40h) card slot 1 and card slot 2 bit allocation Table 10. Bit Bank 1 CSb[7:0] Register0 (address 40h) card slot 1 and card slot 2 bit allocation 7 6 5 4 3 2 1 0 Card slot 1 (address 01h) and Card slot 2 (address 02h) Symbol ACTIVE EARLY MUTE PROT SUPL Access [1]R R R R R R R R Symbol VCC1V8 I/OEN PDWN 5V/3VN WARM START Access [1]W W W W W W [1] REG[1:0] W W CLKSW PRESL PRES See Table 11 for the read mode bits and Table 12 for the write mode bits. When at least one of the PRESL, SUPL, PROT, MUTE and EARLY bits is set to logic 1, IRQN pin is driven LOW until the status byte has been read. After power-on, the SUPL bit is set to logic 1 until the status byte has been read and the IRQN pin is LOW until the voltage supervisor is deactivated. TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 18 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 8.5.3.2 Bank 1 Register0 card slot 1 (address 01h) and card slot 2 (address 02h) read mode bit descriptions Table 11. Bank 1 Register0 card slot 1 (address 01h) and card slot 2 (address 02h) read mode bit descriptions Bit Symbol Value Description 7 ACTIVE 1 set to logic 1: the card is active 0 set to logic 0: the card is inactive 1 set to logic 1: during ATR, when the card answers too early 0 set to logic 0: after reading the byte 1 set to logic 1: during ATR, when the card does not answer according to the ISO 7816 time period 0 set to logic 0: after reading the byte 1 set to logic 1: during a card session when an overload or overheating occurs 0 set to logic 0: after reading the byte 1 set to logic 1: when the supervisor signals a fault 0 set to logic 0: after reading the byte 1 set to logic 1: when the card slot is in Power-down mode and the clock has switched to f osc ( int ) ⁄ 2 6 EARLY 5 MUTE 4 PROT 3 SUPL 2 CLKSW Remark: (fosc(int) is the internal oscillator frequency) 1 PRESL 0 PRES [1] TDA8026_1 Product data sheet 0 set to logic 0: when exiting Power-down mode and when the clock is switched back to the fclk(ext) frequency[1] 1 set to logic 1: the card has been inserted or extracted 0 set to logic 0: after reading the byte 1 set to logic 1: the card is present 0 set to logic 0: the card is not present or has been removed fclk(ext) is the external clock frequency applied to pins CLKIN1 and CLKIN2. All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 19 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 8.5.3.3 Bank 1 Register0 card slot 1 (address 01h) and card slot 2 (address 02h) write mode bit descriptions Table 12. Bank 1 Register0 card slot 1 (address 01h) and card slot 2 (address 02h) write mode bit descriptions Bit Symbol 7 VCC1V8[1] I/OEN[2] 6 Value Description used together with the 5V/3VN bit 1 set to logic 1: VCC(n) = 1.8 V; ignores the 5V/3VN bit logic state 0 set to logic 0: VCC(n) is set using the 5V/3VN bit 1 set to logic 1: pins I/OUCn are switched to pins I/O(n) 0 set to logic 0: pins I/OUCn and I/O(n) are high-impedance with internal pull-up resistor 5 to 4 REG[1:0] - See Table 13 “Bank 1 CSb[7:0] Register0 (address 42h) card slots 1 and card slots 2 bit allocation” on page 21 for detailed information 3 PWDN[3] 1 set to logic 1 to apply the CLKPD[1:0] bit clock settings to pin CLK(n) for the selected card slot 0 set to logic 0 to apply the CLKDIV[1:0] bits clock options to pin CLK(n) for the selected card slot 1 used together with VCC1V8 bit. 2 5V/3VN[1] set to logic 1 and the VCC1V8 bit is logic 0: VCC(n) = 5 V 0 1 0 TDA8026_1 Product data sheet WARM START set to logic 0 and the VCC1V8 bit is logic 0: VCC(n) = 3 V 1 set to logic 1: a warm reset procedure is started 0 set to logic 0: by hardware when a START bit is detected or when MUTE bit is set to logic 1 1 set to logic 1: starts the activation sequence and cold reset procedure (only if the SUPL and PROT bits are logic 0 and the PRES bit is logic 1) 0 set to logic 0: starts the deactivation sequence [1] This bit cannot be written when the START bit is logic 1. [2] It is a mandatory condition for card slots 2 to 5 that only one card slot I/O line is enabled at a time. When switching from one slot to another, the enabled I/O must be disabled before the I/O line for the required card slot is enabled. Remark: If both pins I/OUC1 and I/OUC2 are connected at the same time, this mandatory condition also applies to card slot 1. [3] In synchronous mode, this bit cannot be written when START bit is logic 1. All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 20 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 8.5.3.4 Bank 1 CSb[7:0] Register0 (address 42h) card slots 1 and card slot 2 bit allocation Table 13. Bank 1 CSb[7:0] Register0 (address 42h) card slots 1 and card slots 2 bit allocation Bit 7 6 5 4 3 2 1 0 Card slot 1 (address 01h) and Card slot 2 (address 02h) Card Slot 1 Reg[1:0] = 00; see Table 14 on page 21 Symbol -[1] RSTIN C8(1) C4(1) CLKPD[1:0][2] CLKDIV[1:0][3] Access R/W R/W R/W R/W R/W R/W R/W R/W Card Slot 2 Reg[1:0] = 00; see Table 14 on page 21 Symbol CFGP2 RSTIN Access R/W R/W -[1] R/W R/W CLKPD[1:0][2] CLKDIV[1:0[3]] R/W R/W R/W R/W Card Slot 1 and card slot 2 Reg[1:0] = 01; see Table 16 on page 23 Symbol D[7:0] Access R/W Card Slot 1 and card slot 2 Reg[1:0] = 10; see Table 18 on page 23 Symbol C[15:8] Access R/W Card Slot 1 and card slot 2 Reg[1:0] = 11; see Table 20 on page 23 8.5.3.5 Symbol C[7:0] Access R/W [1] Reserved bit position. [2] CLKPD[2] = bit 3 and CLKPD[1] = bit 2. [3] CLKDIV[2] = bit 2 and CLKDIV[1] = bit 1. Bank 1 Register1 (REG[1:0] = 00) card slot 1 (address 01h) and card slot 2 (address 02h) read/write mode bit descriptions Table 14. Bank 1 Register1 (REG[1:0] = 00) card slot 1 (address 01h) and card slot 2 (address 02h) Read/Write mode bit descriptions Bit Symbol 7 CFGP2[1] 6 RSTIN Value Description enables another type of card detection switch to be used on card socket 1 and card socket 2 1 if CFGP2 is logic 1, an interrupt is generated during each power-up because the reset value of CFGP2 is logic level 0. Refer to the Application note AN10724 for further information 0 the reset value of CFGP2 is logic 0. Refer to the Application note AN10724 for further information 1 synchronous mode: when set to logic 1, pin RST(n) is set to HIGH asynchronous mode: RSTIN is controlled by hardware (ATR management) TDA8026_1 Product data sheet 5 C8(1)[2] 4 C4(1)[2] 0 set to logic 0: pin RST(n) is LOW - writing C8(1) bit writes the corresponding value on C8(1) pin - reading C8(1) bit reads the state of C8(1) pin - writing C41 bit writes the corresponding value on C4(1) pin - reading C41 bit reads the state of C4(1) pin All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 21 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC Table 14. Bank 1 Register1 (REG[1:0] = 00) card slot 1 (address 01h) and card slot 2 (address 02h) Read/Write mode bit descriptions …continued Bit Symbol Value Description 3 to 2 CLKPD[1:0] - asynchronous mode: when PWDN bit is set to logic 1, the CLKPD[1] and CLKPD[2] bits define the card clock - synchronous mode: when the PWDN bit and the START bit are set to logic 1, the CLKPD[2] bit remains logic 0 and the clock frequency is controlled by the CLKPD[1] bit 00 asynchronous mode: the card clock is stopped and set to logic 0 - synchronous mode: the card clock is set to logic 0 01 asynchronous mode: the card clock is stopped and set to logic 1 - synchronous mode: the card clock is set to logic 1 10 asynchronous mode: the card clock = f osc ( int ) ⁄ 2 Remark: (fosc(int) is the internal oscillator frequency) 11 1 to 0 CLKDIV[1:0] asynchronous mode: the card clock frequency (f(clk)) is set using the CLKDIV[1:0] bits. asynchronous mode: when the PWDN bit is set to logic 0 the CLKDIV[1:0] bits define the card clock frequency. synchronous mode: the CLKDIV[1:0] bits are logic 0 00 [3]card slot 1 card clock frequency = fclk(ext) on pin CLK(1) card slot 2 card clock frequency = fclk(ext) on pin CLK(2) 01 card slot 1 card clock frequency = fclk(ext) / 2 on pin CLK(1) card slots 2 card clock frequency = fclk(ext) / 2 on pin CLK(2) 10 card slot 1 card clock frequency = fclk(ext) / 4 on pin CLK(1) card slot 2 card clock frequency = fclk(ext) / 4 on pin CLK(2) 11 card slot 1 card clock frequency = fclk(ext) / 5 on pin CLK(1) card slot 2 card clock frequency = fclk(ext) / 5 on pin CLK(2) 8.5.3.6 [1] Only for card slot 2 register. [2] Only for card slot 1 register. [3] fclk(ext) is the external clock frequency applied to pins CLKIN1 and CLKIN2. Bank 1 Register1 (REG[1:0] = 01) card slot 1 (address 01h) and card slot 2 (address 02h) bit allocation Table 15. Bit TDA8026_1 Product data sheet Bank 1 Register1 (REG[1:0] = 01) card slot 1 (address 01h) and card slot 2 (address 02h) bit allocation 7 6 5 4 3 Symbol D[7:0] Access R/W All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 2 1 0 © NXP B.V. 2010. All rights reserved. 22 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 8.5.3.7 Bank 1 Register1 (REG[1:0] = 01) card slot 1 (address 01h) and card slot 2 (address 02h) read/write mode bit descriptions Table 16. 8.5.3.8 Bit Symbol Description 7 to 0 D[7:0] programmable 8-bit clock counter. This value is applied to all slots. The reset value is AAh. See Section 8.9 “Answer to reset counters” on page 35 Bank 1 Register1 (REG[1:0] = 10) card slot 1 (address 01h) and card slot 2 (address 02h) bit allocation Table 17. Bit 8.5.3.9 5 4 3 R/W 2 1 0 Bank 1 Register1 (REG[1:0] = 10) card slot 1 (address 01h) and card slot 2 (address 02h) read/write mode bit descriptions Bank 1 Register1 (REG[1:0] = 10) card slot 1 (address 01h) and card slot 2 (address 02h) Read/Write mode bit descriptions Bit Symbol Description 7 to 0 C[15:8] most significant byte of a programmable 16-bit clock counter. This value is applied to all slots. The reset value is A4h. See Section 8.9 “Answer to reset counters” on page 35 Bank 1 Register1 (REG[1:0] = 11) card slot 1 (address 01h) and card slot 2 (address 02h) bit allocation Bank 1 Register1 (REG[1:0] = 11) card slot 1 (address 01h) and card slot 2 (address 02h) bit allocation 7 6 5 4 3 Symbol C[7:0] Access R/W 2 1 0 Bank 1 Register1 (REG[1:0] = 11) card slot 1 (address 01h) and card slot 2 (address 02h) read/write mode bit descriptions Table 20. Product data sheet 6 Access Bit TDA8026_1 7 C[15:8] Table 19. 8.5.3.11 Bank 1 Register1 (REG[1:0] = 10) card slot 1 (address 01h) and card slot 2 (address 02h) bit allocation Symbol Table 18. 8.5.3.10 Bank 1 Register1 (REG[1:0] = 01) card slot 1 (address 01h) and card slot 2 (address 02h) Read/Write mode bit descriptions Bank 1 Register1 (REG[1:0] = 11) card slot 1 (address 01h) and card slot 2 (address 02h) read/write mode bit descriptions Bit Symbol Description 7 to 0 C[7:0] least significant byte of a programmable 16-bit clock counter. This value is applied to all slots. The reset value is 74h. See Section 8.9 “Answer to reset counters” on page 35. All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 23 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 8.5.4 Card slots 3 to 5 register descriptions 8.5.4.1 Bank 1 CSb[7:0] Register0 (address 40h) card slots 3 to 5 bit allocation Table 21. Bank 1 CSb[7:0] Register0 (address 40h) card slots 3 to 5 bit allocation Bit 7 6 5 4 3 2 1 0 Card slot 3 (address 03h), Card slot 4 (address 04h) and Card slot 5 (address 05h) 8.5.4.2 Symbol ACTIVE EARLY MUTE PROT SUPL CLKSW -[1] STAP Access R[2] R R R R R R R Symbol VCC1V8 I/OEN PDWN 5V/3VN WARM START Access W[2] W W W W W REG[1:0] W W [1] Reserved bit position. [2] See table Table 22 for more detailed information on read mode bits and Table 23 for more detailed information on write mode bits. Bank 1 Register0 card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) read mode bit descriptions Table 22. Bank 1 Register0 card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) read mode bit descriptions Bit Symbol 7 ACTIVE 6 5 4 3 2 EARLY MUTE PROT SUPL CLKSW Value Description 1 set to logic 1: the card is active 0 set to logic 0: the card is inactive 1 set to logic 1: during ATR, when the card answers too early 0 set to logic 0: after reading the byte 1 set to logic 1: during ATR, when the card does not answer according to the ISO 7816 time period 0 set to logic 0: after reading the byte 1 set to logic 1: during a card session when an overload or overheating occurs 0 set to logic 0: after reading the byte 1 set to logic 1: the supervisor signaled a fault 0 set to logic 0: after reading the byte 1 set to logic 1: when the card slot is in Power-down mode and the clock has switched to f osc ( int ) ⁄ 2 Remark: (fosc(int) is the internal oscillator frequency) 0 set to logic 0: when exiting Power-down mode and when the clock is switched back to fclk(ext) 1 - - reserved 0 STAP - gives the value of the corresponding STAPn pin when read When at least one of the SUPL, PROT, MUTE and EARLY bits are set to logic 1, the IRQN pin is driven LOW until the status byte has been read. After power-on, the SUPL bit is set to logic 1 until the status byte has been read and the IRQN pin is LOW until the voltage supervisor is deactivated. TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 24 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 8.5.4.3 Bank 1 Register0 card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) write mode bit descriptions Table 23. Bit Symbol 7 VCC1V8[1] I/OEN[2] 6 Description used together with the 5V/3VN bit 1 set to logic 1: VCC(n) = 1.8 V; ignores the 5V/3VN bit logic state 0 if set to logic 0 VCC(n) is set using the 5V/3VN bit 1 set to logic 1: pins I/OUCn are switched to pins I/O(n) 0 set to logic 0: pins I/OUCn and I/O(n) are high-impedance with internal pull-up resistor REG[1:0] - see Table 24 “Bank 1 CSb[7:0] Register1 (address 42h) card slots 3 and 5 bit allocation” on page 26 for detailed information 3 PWDN[3] 1 set to logic 1: to apply the CLKPD[1:0] bit clock settings to pin CLK(n) for the selected card slot 0 set to logic 0: to apply the CLKDIV[1:0] bits clock options to pin CLK(n) for the selected card slot 1 0 Product data sheet Value 5 to 4 2 TDA8026_1 Bank 1 Register0 card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) write mode bit descriptions 5V/3VN[1] WARM START used together with VCC1V8 bit 1 set to logic 1: and the VCC1V8 bit is logic 0: VCC(n) = 5 V 0 set to logic 0: and the VCC1V8 bit is logic 0: VCC(n) = 3 V 1 set to logic 1: a warm reset procedure is started 0 set to logic 0: by the hardware: a START bit is detected or the MUTE bit is set to logic 1 1 set to logic 1: when the SUPL and PROT bits are logic 0 and the PRES bit is logic 1, the activation sequence and cold reset procedure are started 0 set to logic 0: deactivation sequence starts [1] This bit cannot be written when START bit is logic 1. [2] It is a mandatory condition for card slots 2 to 5 that only one card slot I/O line is enabled at a time. When switching from one slot to another, the enabled I/O must be disabled before the I/O line for the required card slot is enabled. Remark: If both pins I/OUC1 and I/OUC2 are connected at the same time, this mandatory condition also applies to card slot 1. [3] In synchronous mode, this bit cannot be written when START bit is logic 1. All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 25 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 8.5.4.4 Bank 1 CSb[7:0] Register1 (address 42h) card slots 3 and 5 bit allocation Table 24. Bank 1 CSb[7:0] Register1 (address 42h) card slots 3 and 5 bit allocation Bit 7 6 5 4 3 2 1 0 Card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) Reg[1:0] = 00 Symbol -[1] RSTIN Access R/W R/W -[1] R/W R/W CLKPD[1:0][2] CLKDIV[1:0[3]] R/W R/W R/W R/W Reg[1:0] = 01 Symbol D[7:0] Access R/W Reg[1:0] = 10 Symbol C[15:8] Access R/W Reg[1:0] = 11 8.5.4.5 Symbol C[7:0] Access R/W [1] Reserved bit position. [2] CLKPD[2] = bit 3 and CLKPD[1] = bit 2. [3] CLKDIV[2] = bit 2 and CLKDIV[1] = bit 1. Bank 1 Register1 (REG[1:0] = 00) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) read/write mode Table 25. Bank 1 Register1 (REG[1:0] = 00) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) read/write mode Bit Symbol Value Description 7 - - reserved 6 RSTIN 1 synchronous mode: when set to logic 1, pin RST(n) is set to HIGH asynchronous mode: RSTIN is controlled by the hardware (ATR management) 5 to 4 TDA8026_1 Product data sheet - 0 set to logic 0: RST(n) is set LOW - reserved All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 26 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC Table 25. Bank 1 Register1 (REG[1:0] = 00) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) read/write mode …continued Bit Symbol Value Description 3 to 2 CLKPD[1:0] - asynchronous mode: when PWDN bit is set to logic 1, the CLKPD[1] and CLKPD[2] bits define the card clock - synchronous mode: when the PWDN bit and the START bit are set to logic 1, the CLKPD[2] bit remains logic 0 and the clock frequency is controlled by the CLKPD[1] bit 00 asynchronous mode: the card clock is stopped and set to logic 0 - synchronous mode: the card clock is set to logic 0 01 asynchronous mode: the card clock is stopped and set to logic 1 - synchronous mode: the card clock is set to logic 1 10 asynchronous mode: the card clock = f osc ( int ) ⁄ 2 Remark: (fosc(int) is the internal oscillator frequency) 11 1 to 0 CLKDIV[1:0] asynchronous mode: the card clock frequency (f(clk)) is set using the CLKDIV[1:0] bits. synchronous mode: the CLKDIV[1] and CLKDIV[2] bits are set to logic 0 by the hardware asynchronous mode: PWDN bit is logic 0, the CLKDIV[1] and CLKDIV[2] bits define the card clock as follows: 8.5.4.6 Bit Product data sheet fclk(ext) / 2 on pin CLKIN2 for card slots 2 to 5 10 fclk(ext) / 4 on pin CLKIN2 for card slots 2 to 5 11 fclk(ext) / 5 on pin CLKIN2 for card slots 2 to 5 Bank 1 Register1 (REG[1:0] = 01) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) bit allocation 7 6 5 4 3 Symbol D[7:0] Access R/W 2 1 0 Bank 1 Register1 (REG[1:0] = 01) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) read/write mode bit descriptions Table 27. TDA8026_1 fclk(ext) on pin CLKIN2 for card slots 2 to 5 01 Bank 1 Register1 (REG[1:0] = 01) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) bit allocation Table 26. 8.5.4.7 00 Bank 1 Register1 (REG[1:0] = 01) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) read/write mode bit descriptions Bit Symbol Description 7 to 0 D[7:0] programmable 8-bit clock counter. This value applies to all slots. The reset value is AAh. See Section 8.9 “Answer to reset counters” on page 35 All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 27 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 8.5.4.8 Bank 1 Register1 (REG[1:0] = 10) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) bit allocation Table 28. Bit 8.5.4.9 6 5 4 3 C[15:8] Access R/W 2 1 0 Bank 1 Register1 (REG[1:0] = 10) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) read/write mode bit descriptions Bank 1 Register1 (REG[1:0] = 10) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) read/write mode bit descriptions Bit Symbol Description 7 to 0 C[15:8] most significant byte of a programmable 16-bit clock counter. This value applies to all slots. The reset value is A4h. See ATR Section 8.9 “Answer to reset counters” on page 35 Bank 1 Register1 (REG[1:0] = 11) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) bit allocation Table 30. Bit 8.5.4.11 7 Symbol Table 29. 8.5.4.10 Bank 1 Register1 (REG[1:0] = 10) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) bit allocation Bank 1 Register1 (REG[1:0] = 11) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) bit allocation 7 6 5 4 3 Symbol C[7:0] Access R/W 2 1 0 Bank 1: Bank 1 Register1 (REG[1:0] = 11) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) read/write mode bit descriptions Table 31. Bank 1: Bank 1 Register1 (REG[1:0] = 11) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) read/write mode bit descriptions Bit Symbol Description 7 to 0 C[7:0] least significant byte of a programmable 16-bit clock counter. This value applies to all slots. The reset value is 74h. See Section 8.9 on page 35 8.5.5 Selection of asynchronous or synchronous mode When the activation sequence starts, the selected card slot on the TDA8026 uses the RSTIN bit value to configure itself for use with asynchronous or synchronous cards. If the RSTIN bit is set to logic 1 at the activation sequence start (the START bit changes from LOW to HIGH), the TDA8026 will manage asynchronous cards. In asynchronous mode, the card slot RST(n) pin is controlled by the corresponding ATR counter (see Section 8.9 on page 35). In synchronous mode, the card slot RST(n) pin is controlled by the corresponding RSTIN bit. The card clock configuration is set by the PWDN bit value at the activation sequence start of the selected card slot (the START bit changed from LOW to HIGH). TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 28 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC • If the PDWN bit is set to logic 0 at the start of the activation, the card clock value is the CLKIN1 pin frequency for card slot 1 and the CLKIN2 pin frequency for card slots 2 to 5. If CLKDIV[1:0] = 00, the first four clock cycles are not transferred to CLK(n). When CLKDIV[1:0] = 01, 10 or 11, the first five clock cycles are not transferred to CLK(n). • If the PDWN bit is set to logic 1 at the start of the activation, the clock uses the CLKPD1 bit. The card clock frequency and the stop state are configured using the CLKDIV[1:0] and CLKPD[1:0] bits. Refer to Table 32 for the configuration in asynchronous mode and Table 33 for synchronous mode. Table 32. Asynchronous mode card clock settings PWDN bit CLKDIV[1:0] bit CLKPD[1:0] bit Card clock (CLK) 0 00 - fclk(ext) 0 01 - fclk(ext) / 2 0 10 - fclk(ext) / 4 0 11 - fclk(ext) / 5 1 - 00 logic 0 1 - 01 logic 1 1 - 10 f osc ( int ) ⁄ 2 1 - 11 fclk(ext) / x (no change) Table 33. Synchronous mode card clock settings PWDN bit CLKDIV[1:0] bit CLKPD[1:0] bit Card clock (CLK) logic 1 at activation sequence start - x0 logic 0 logic 1 at activation sequence start - x1 logic 1 - xx fclk(ext) logic 0 at activation sequence [1] start[1] If CLKDIV[1:0] = 00, the first four clock cycles are not transferred to CLK(n). When CLKDIV[1:0] is not 00, the first five clock cycles are not transferred to CLK(n). fclk(ext) is the clock input frequency on either pin CLKIN1 or pin CLKIN2 depending on the card slot number. During transitions, no pulse is shorter than 45 % of the smallest period and both the first/last clock pulse around the change have the correct width; making the frequency change synchronous. When changing the card clock frequency from one fclk(ext) frequency division to another, the modification is only active after the next rising clock edge. Any change after switching the card clock frequency from an external fclk(ext) frequency division to the internal oscillator frequency (fosc(int)) is not immediate. The change is indicated by the state of the CLKSW bit (see the register descriptions in Table 11 and Table 22). In addition, it is assumed that the fclk(ext) / x frequency division is less than or equal to 6.25 MHz. TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 29 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 8.5.6 General registers 8.5.6.1 Bank 1 General registers (address: 40h, 42h; CSb[7:0] = 00h, 06h) bit allocation Table 34. Bit Bank 1 General registers (addresses: 40h, 42h; CSb[7:0] = 00h, 06h) bit allocation 7 6 5 4 3 2 1 0 Address 40h; CSb[7:0] = 00h, see Table 35 Symbol PV[7:0] Access R Address 40h; CSb[7:0] = 06h Symbol CLK_SR[3:2] IO_SR[3:2] CLK_SR[1:0] IO_SR[1:0] Access R/W R/W R/W R/W Address 42h; CSb[7:0] = 00h 8.5.6.2 Symbol -[1] INTAUX INT[4:0][2] Access R R R [1] Reserved bit position. [2] The INT numbers do not match the bit positions and are as follows: bit 4 = INT5, bit 3 = INT4, bit 2 = INT3, bit 1 = INT2 and bit 0 = INT1 Bank 1 Product version register (address 40h; CSb[7:0] = 00h) read mode bit descriptions Table 35. TDA8026_1 Product data sheet Bank 1 Product version register (address 40h; CSb[7:0] = 00h) read mode bit descriptions Bit Symbol Description 7 to 0 PV[7:0] reading this register returns the product version. The MSB nibble is C (commercial product) and the LSB nibble is 2 (release number) All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 30 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 8.5.6.3 Bank 1 Interrupt register (address 42h; CSb[7:0] = 00h) read mode bit descriptions Table 36. Bank 1 Interrupt register (address 42h; CSb[7:0] = 00h) read mode bit descriptions Bit Symbol Value Description 7 to 6 - - reserved 5 INTAUX - auxiliary interrupt line 4 to 0 INT[4:0][1] These interrupt bits remain at logic 1 until the interrupt SUPL, PROT, MUTE and EARLY bits have been read INT5: card slot 5 interrupt: 1 set to logic 1: when any of the bits SUPL, PROT, MUTE and EARLY are set to logic 1 0 set to logic 0: when any of the bits SUPL, PROT, MUTE and EARLY are set to logic 0 when read INT4: card slot 4 interrupt: 1 set to logic 1: when any of the bits SUPL, PROT, MUTE and EARLY are set to logic 1 0 set to logic 0: when any of the bits SUPL, PROT, MUTE and EARLY are set to logic 0 when read INT3: card slot 3 interrupt: 1 set to logic 1: when any of the bits SUPL, PROT, MUTE and EARLY are set to logic 1 0 set to logic 0: when any of the bits SUPL, PROT, MUTE and EARLY are set to logic 0 when read INT2: card slot 2 interrupt: 1 set to logic 1: when any of the bits PRESL, SUPL, PROT, MUTE and EARLY are set to logic 1 0 set to logic 0: when any of the bits PRESL, SUPL, PROT, MUTE and EARLY are set to logic 0 when read INT1: card slot 1 interrupt: [1] 8.5.6.4 1 set to logic 1: when any of the bits PRESL, SUPL, PROT, MUTE and EARLY are set to logic 1 0 set to logic 0: when any of the bits PRESL, SUPL, PROT, MUTE and EARLY are set to logic 0 when read The INTx numbers do not match the bit positions and are as follows: bit 4 = INT5, bit 3 = INT4, bit 2 = INT3, bit 1 = INT2 and bit 0 = INT1 Bank 1 Slew rate register (address 40h; CSb[7:0] = 06h) read/write mode bit descriptions Table 37. Bank 1 Slew rate register (address 40h; CSb[7:0] = 06h) read/write mode bit descriptions Bit Symbol Description 7 to 6 CLK_SR[3:2] card slot 2 to 5 clock slew rate selection 5 to 4 IO_SR[3:2] card slot 2 to 5 I/O slew rate selection 3 to 2 CLK_SR[1:0] card slot 1 clock slew rate selection 1 to 0 IO_SR[1:0] card slot 1 I/O slew rate selection Refer Section 8.10 on page 37 for more detailed information. TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 31 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 8.6 DC-to-DC converter The DC-to-DC converter has been designed to provide an average of 5.4 V to the programmable voltage regulators (5 V, 3 V and 1.8 V) for the card slots. It is capable of delivering a total DC current of 116 mA to the card slots. If the total current from all card slots exceeds 170 mA, the overcurrent/overload protection deactivates the DC-to-DC converter. The addition of a 10 µH external coil and Schottky diode ensures the DC-to-DC converter operates at an input voltage range between 2.7 V and 5.5 V. When the DC-to-DC converter cannot act as a step-up converter, an overload alarm is sent to the digital module and all card slot interfaces are deactivated. This causes the IRQN line to be driven LOW and the Bank 1 Register 0 PROT bit is set to logic 1. The DC-to-DC converter is deactivated when the TDA8026 is in shutdown mode. The card slots can be directly supplied by the VDD supply voltage, if it is always above 5.25 V, thus removing the need to use the DC-to-DC converter. In this situation, the supply voltage can be directly applied to the VUP and LX pins as shown in Figure 9. VDD(INTF) VDD(INTF) VDD > 5.25 V VDD(INTF) VDD LX DC-to-DC CONVERTER DCDC_OFF VUP 10 µF GNDP 001aal090 Fig 9. The DC-to-DC converter When DCDC_OFF is set to VDD(INTF), the DC-to-DC converter is shutdown: • the output power transistors are switched OFF • the DC-to-DC converter current consumption is 0 A. 8.7 VCC buffer The current on the VCC buffer is internally limited to approximately 100 mA. When this limit is reached, the automatic deactivation sequence is performed. Each card slot has its own limitation and deactivation of one card slot does not affect the other card slots. The VCC(n) voltage should be decoupled with two low ESR 100 nF (minimum) capacitors. One capacitor should be placed close to the VCC pin of the device and the other close to the C1 pin of the card connector. See Figure 14 for detailed information. 8.8 Sequencer and clock counter Each card slot has a dedicated sequencer and clock counter. The sequencer ensures that the activation and deactivation sequences meet the ISO 7816 and EMV 4.2 standards, even during an emergency deactivation caused by card removal during transaction, supply drop out or a hardware problem. The sequencer is clocked with an internal oscillator (fosc(int)). TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 32 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC Card slot 1 or card slot 2 can only be activated if a card is detected as present in the slot and if an alarm is not triggered by the voltage supervisor. When both of these parameters are met, the card slots can be activated by setting the Command register START bit. The activation sequence is described in Section 8.8.2. Card slots 3 to 5 do not have presence monitoring. The corresponding STAP pin is used for card presence detection on these slots. The deactivation is initiated by the system controller or automatically in the case of a hardware problem or a supply drop out. The deactivation sequence is described in Section 8.8.3. Outside a session, the card contacts are forced to low-impedance with respect to the GNDC pin. 8.8.1 Standby mode Standby mode is the default state after a power-on reset. This mode ensures the power consumption remains low until a card is inserted or the microcontroller starts a card session. When there is not an ongoing card session, the internal oscillator runs at its low frequency (t15). A debouncing time of 17.8 ms is applied to card slot 1 and card slot 2 to allow for card insertion (presence) detection. 8.8.2 Activation sequence When the card is inactive, pins VCC(n), CLK(n), RST(n) and I/O(n) are LOW which is low-impedance with respect to pin GNDC(n) or pin GNDS depending of the card slot. The sequencer is clocked by an internal oscillator. When everything is satisfactory (voltage supply, card presence, no hardware problem), the system controller can trigger the card present activation sequence by setting card slot’s START bit to logic 1: • • • • The internal oscillator switches to its high frequency (t0, see Figure 10). The DC-to-DC converter starts (t1). VCC(n) starts to rise from 0 V to 1.8 V, 3 V or 5 V during the controlled rise time (t2). The voltage on the I/O(n) pin rises to VCC(n), due to integrated 10 kΩ pull-ups for VCC(n) (t3). CLK(n) clock signal is sent to the card (t4 = tact) and the RST(n) pin is enabled. The RST(n) pin is managed by the ATR counter or the Register1 RSTIN bit depending on the card slot mode (asynchronous or synchronous). f osc ( int ) The sequencer is clocked by ------------------- which leads to a time interval T = 25 µs (typical). 64 3T 7T Thus, t 1 = 0 , t 2 = t 1 + ------- , t 3 = t 1 + ------- and t 4 = t 1 + 4T . 2 2 TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 33 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC START internal clock low frequency oscillator high frequency internal DC-to-DC converter enable VCC(n) I/O(n) CLK(n) RST(n) 0 t1 1 2 3 t2 4 5 6 7 8 t3 t4 T/2 9 10 11 12 13 14 001aal096 Fig 10. The card slot activation sequence In Figure 10 only one card slot is activated. If another card slot is active, the DC-to-DC converter remains active. 8.8.3 Deactivation sequence When the session finishes, the microcontroller resets the START bit to logic 0 (Figure 11) and the following deactivation sequence is performed: • • • • • • Card reset: RST(n) pin falls to 0 V (t11). Pin CLK(n) is stopped (t12). Pin I/O(n) falls to 0 V (t13). Pin VCC(n) falls to 0 V with a controlled slew rate (t14). The DC-to-DC converter is stopped. Pins CLK(n), RST(n), VCC(n) and I/O(n) are driven to 0 V with a low-impedance switch attached to pin GNDS (t15). • The internal oscillator switches to its low frequency (t15) T 3T 7T Thus, t 11 = 0 , t 12 = t 11 + --- , t 13 = t 11 + T , t 14 = t 11 + ------- and t 15 = t 11 + ------- . 2 2 2 The deactivation time tdeact is the time that VCC(n) needs to be driven below 0.4 V, counting from the moment START bit is reset. TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 34 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC START RST(n) CLK(n) I/O(n) VCC(n) internal DC-to-DC converter enable internal clock oscillator high frequency 0 1 2 3 4 t11 t12 t13 t14 low frequency 5 6 7 t15 T/2 001aal091 Fig 11. Deactivation sequence In Figure 11 only one card slot is active. If another card slot is active, the DC-to-DC converter is still active. 8.9 Answer to reset counters Each TDA8026 card slot has its own sequencer. The sequencer controls the activation and deactivation sequences. In addition to these sequencers, there are two Answer To Reset (ATR) counters: • ATR dedicated to card slot 1 • ATR dedicated to the other slots The operating mode (asynchronous or synchronous) has to be selected by the microcontroller. The ATR counters are used in asynchronous mode to manage the RST(n) pin and to check the card’s ATR. In synchronous mode, the RST pin is controlled by the microcontroller using the RSTIN bit (see the bit description in Table 11 on page 19 and Table 22 on page 24) and the card’s ATR is not checked. The ATR counter module comprises two counters: • EARLY answer counter: The early answer counter consists of a fixed part which counts up to 200 clock cycles. The secondary part counts up to the D[7:0] bits value of clock cycles (see the register descriptions in Table 16 on page 23 and Table 27 on page 27). The default D[7:0] bits value is 170 which gives a total default count of 370 clock cycles • MUTE counter: The mute counter counts up to C[15:8] and C[7:0] bits value for the clock cycles (see the register descriptions in Table 22 on page 24 and Table 30 on page 28). The default value of the C[15:0] bits is 42100 which gives a default count of 42100 clock cycles. Both counters can be easily quickly reprogrammed, if for example, a card does not fully meet the EMVCo/ISO7816 standards or to enable the implementation of new and enhanced standards. TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 35 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC When operating, the microcontroller starts to configure the selected card slot (card supply voltage) and then triggers the activation sequence using the START bit. The sequencer then performs the activation sequence. The DC-to-DC converter is started, pin VCC(n) is set to the previously configured card supply voltage, pin I/O(n) is enabled and CLK(n) starts (see Section 8.8.2 on page 33 and Section 8.8.3 on page 34). Pin RST(n) is set to LOW. The ATR counter dedicated to the card slot makes the following checks and takes the steps required: • START bits from a card detected on pin I/O(n) during the first 200 clock cycles are ignored and the count continues. • START bits from a card detected while pin RST(n) is set to LOW, with the number of clock cycles between 200 and the C[15:0] bits value (default 42100), cause the EARLY and MUTE bits to be set to logic 1. Pin RST(n) remains LOW and the microcontroller decides if it will accept the card. • START bits detected after the number of clock cycles is equal to the C[15:0] bits value cause pin RST(n) to be set to HIGH. • START bits received from the card when the first number of clock cycles is equal to the D[7:0] bits value (default 370) and pin RST(n) set to HIGH cause the EARLY bit to be set to logic 1. • Cards not answering before 42100 clock cycles (or the C[15:0] bits value) with RST(n) set to HIGH cause the MUTE bit to be set to logic 1. • Cards answering within the correct time frame, stops the clock cycles count and the microcontroller can send commands to the card. Figure 12 shows the timings checked by the ATR counters. VCC(n) I/O(n) CLK(n) RST(n) 200 CLK cycles (I/O ignored) 370 CLK cycles (early answer check) 42100 CLK cycles answer check (EARLY and MUTE bits) 200 CLK cycles (I/O ignored) 42100 CLK cycles (mute check) 370 CLK cycles (early answer check) 42100 CLK cycles 42100 CLK cycles (mute check) answer check (EARLY and MUTE bits) WARM cold reset warm reset 001aal092 Fig 12. ATR counter timing check When the EARLY and MUTE bits are set to logic 1, they signal an interrupt (see the bit descriptions in Table 12 on page 20, Table 22 on page 24 and Table 36 on page 31). TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 36 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC The sequence described in Section 8.9 relates to a cold reset. If the card is mute (has not answered), the microcontroller can start a warm reset by setting WARM bit to logic 1 (see the bit descriptions in Table 11 on page 19 and Table 22 on page 24). Then, the ATR counter set pin RST(n) to LOW and performs the same timing checks (see Figure 12). Remark: It is assumed that two card activations will not take place simultaneously on card slots 2 to 5 because only one I/O(n) line is available for these four slots. There is no protection on the second ATR counter against starting an activation while a count is ongoing. The first ATR counter is dedicated to the slot 1. Consequently, it is mandatory to enable only one slot I/O(n) line at the same time for card slots 2 to 5. When switching from one slot to another one, it is mandatory to first disable the slot I/O(n) line in use before enabling the slot I/O(n) line required. During this transition, no I/O(n) lines are enabled for card slots 2 to 5. This allows the ATR counter to be reset between card slot switching actions. If both pins I/OUC1 and I/OUC2 are connected at the same time, this mandatory condition also applies to card slot 1. 8.10 Slew rate control Slew rate control is embedded for the clock buffer and the I/O(n) line of each card slot. The rising and falling edge of the card clock signal can be configured using 2 bits in Register6 of bank 1. The settings based on a 30 pF load capacitance and a VCC(n) = 5 V are shown in Table 38. Table 38. Clock Slew rate CLK_SR[1] (high) CLK_SR[2] (low) Rise and fall time (ns) L L 10 L H 7 H L 6 H H 5 [1] The high slots are define by [1] (slot 1) and [3] (all other slots). [2] The low slots are define by [0] (slot 1) and [2] (all other slots). The rise and fall time is calculated from 10 % to 90 % and 90 % to 10 % (respectively) of the signal amplitude. The default setting for CLK_SR[1]/CLK_SR[3] (high) is LOW and CLK_SR[0]/CLK_SR[2] (low) is HIGH. Only the falling edge of the card I/O(n) signal can be configured with the two programmable bits in Register6 of bank 1. The settings based on a 30 pF load capacitance and a VCC(n) = 5 V are shown in Table 39 on page 37: Table 39. IO_SR[1] TDA8026_1 Product data sheet I/O slew rate IO_SR[2] (low) Fall time (ns) L L 67 L H 54 H L 35 H H 17 (high) [1] The high slots are define by [1] (slot 1) and [3] (all other slots). [2] The low slots are define by [0] (slot 1) and [2] (all other slots). All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 37 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC The fall time is calculated from 90 % to 10 % of the signal amplitude. The default setting for IO_SR[0]/IO_SR[2] (low) and IO_SR[1]/IO_SR[3] (high) is LOW (see table Table 39 on page 37). 8.11 Fault detection The following fault conditions are monitored by the TDA8026. • Overheating: All the card slots are automatically deactivated and the device is forced in to Standby mode when the detected temperature range is between 125 °C to 209 °C. The card slot PROT bit is set to logic 1. Above 209 °C the device is shutdown. • Card removal during transaction: A deactivation sequence is performed in accordance with the EMV 4.2 standard. • DC-to-DC converter overload: All card slots are automatically deactivated and the device is placed in Standby mode when the current supplied by the DC-to-DC converter exceeds 170 mA (ICC parameter for VCC(n)). The card slot PROT bit is set to logic 1 • Card slot current limitation and deactivation: A current level drawn by a card which exceeds 120 mA (Isd parameter for VCC(n)) triggers the deactivation sequence on the faulty card slot. During the deactivation, the current is limited to approximately 110 mA. The card slot PROT bit is set to logic 1 • VDD or VDD(INTF) dropping: A voltage drop occurring on VDD or VDD(iNTF) generates card slot deactivation followed by a device reset. The completion of this phase is validated when the SUPL bits are set to logic 1. TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 38 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 9. Limiting values Table 40. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol Parameter Conditions Min Max Unit VDD supply voltage on pin VDD −0.5 +6 V VDD(INTF) interface supply voltage on pin VDD(INTF) −0.5 +4.6 V VIH HIGH-level input voltage on all card pins −0.5 +6 V output voltage Vo −0.5 +4.6 V on pin LX [1] −0.5 +7.2 V DC-to-DC converter output on pin VUP [1] −0.5 +7.2 V - 665 mW −55 +150 °C −7 +7 kV −2 +2 kV −200 +200 V −500 +500 V on all other pins Tamb = −25 °C to +85 °C Ptot total power dissipation Tstg storage temperature VESD electrostatic discharge voltage [2] HBM on I/O(n), VCC(n), CLK(n), GNDC(n), PRES, RST(n), C4(1), C8(1) card pins on all other pins [3] MM on all pins CDM on all pins [1] The limiting values depend on the external inductor and VUP decoupling capacitor used. [2] Every pin withstands the ESD test according to MIL-STD-883C class 3 for card contacts, class 2 for the remaining. Method 3015 (HBM; 1500 Ω; 100 pF) defines three pulses positive and three pulses negative on each pin referenced to ground. [3] The 7 kV ESD test is performed in the typical application configuration as depicted in the Application note AN10724 with two external capacitors connected to each VCC(n) line. 10. Thermal characteristics Table 41. Thermal characteristics Symbol Parameter Rth(j-a) [1] TDA8026_1 Product data sheet Conditions thermal resistance from junction to ambient [1] Typ Unit 47.1 K/W With a 4-layer board All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 39 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 11. Characteristics Table 42. Supply VDD = VDD(INTF) = 3.3 V; fclk(ext)[1] = 10 MHz; GND = 0 V; inductor = 10 µH; decoupling capacitors on pins VDD and VUP = 10 µF; Tamb = 25 °C unless otherwise specified. Symbol Parameter Conditions supply voltage VDD Vhys hysteresis voltage VDD(INTF) interface supply voltage Min Typ Max Unit on pin VDD; DC-to-DC converter on [2] 2.7 - 5.5 V on pin VDD; DC-to-DC converter off; VCC(n) pins = 5 V [2] 5.25 - 5.5 V on pin VDD [3] 50 100 150 mV 1.6 - on pin VDD(INTF) threshold voltage decreasing voltage on pin VDD Vth on pin VDD(INTF) supply current IDD interface supply current [3] 2.35 2.45 2.55 V [4] 1.19 1.26 1.32 V 25 Standby mode - 300 450 µA clock-stop mode; All card slots in this mode; fclk(ext) = stopped on pins CLKIN1 and CLKIN2 - 3.7 - 210 260 mA shutdown mode - 10 15 µA active mode; All VCC(n) pins = 5 V; fclk(ext) = 5 MHz; - 35 - µA [5] 40 µA - increasing voltage on pin VDD twake V shutdown mode active mode; All VCC(n) pins = 5 V; fclk(ext) = 5 MHz; ICC(1) = ICC(2) = 55 mA; ICC(3) = ICC(4) = ICC(5) = 2 mA IDD(INTF) 3.6 - mA [6] [3] wake-up time 2.35 2.55 2.65 V 5.8 [1] fclk(ext) is the external clock frequency applied to pins CLKIN1 and CLKIN2. [2] Refer to Section 8.6 for further information about DC-to-DC converter operation. - 11 ms [3] See Figure 6 “The voltage supervisor circuit” on page 11. [4] See Section 8.3.2 “Description” for a description of the voltage supervisor. [5] Typical value measurement based on a 85 % DC-to-DC converter and inductance efficiency; depends on PCB layout and external component quality (inductor, capacitor). [6] Maximum measurement value based on a 125 mA ICC current load and a 75 % DC-to-DC converter and inductance efficiency; depends on PCB layout and external component quality (inductor, capacitor). Table 43. Supply supervisor VDD = VDD(INTF) = 3.3 V; fclk(ext) = 10 MHz; GND = 0 V; inductor = 10 µH; decoupling capacitors on pins VDD and VUP = 10 µF; Tamb = 25 °C unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit PORADJ Pin TDA8026_1 Product data sheet IL leakage current −1 - +1 µA IIL LOW-level input current −1 - +1 µA IIH HIGH-level input current −1 - +1 µA All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 40 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC Table 44. DC-to-DC converter VDD = VDD(INTF) = 3.3 V; fclk(ext) = 10 MHz; GND = 0 V; inductor = 10 µH; decoupling capacitors on pins V and VUP = 10 µF; Tamb = 25 °C unless otherwise specified. Symbol Parameter fosc(int) internal oscillator frequency Vo output voltage Vi ton(DCDC) Conditions Min Typ Max Unit 2.1 2.8 3.5 MHz from DC-to-DC converter; DC-to-DC converter on; not bypassed 5.25 5.5 - V input voltage pin LX input voltage; DC-to-DC converter on; not bypassed - - 7.2 V DC-to-DC converter turn-on time VDD < 4.2 V - 1.4 - µs VDD > 4.2 V - 0.35 - µs Table 45. Card drivers VDD = VDD(INTF) = 3.3 V; fclk(ext) = 10 MHz; GND = 0 V; inductor = 10 µH; decoupling capacitors on pins VDD and VUP = 10 µF; Tamb = 25 °C unless otherwise specified. Symbol Parameter Conditions Min Card supply voltage: VCC(1) to VCC(5) [1] VCC Standby mode supply voltage −0.1 - +0.1 V −0.1 - +0.3 V 5 V card; DC ICC(n) ≤ 55 mA 4.75 5 5.25 V 3 V card; DC ICC(n) ≤ 55 mA 2.85 3 3.15 V 1.71 1.8 1.89 V 5 V card; 40 nAs current spikes 4.65 - 5.35 V 3 V card; 17.5 nAs current spikes 2.76 - 3.24 V 1.8 V card; 11.1 nAs current spikes 1.62 - 1.98 V - - 350 mV active mode; AC current pulses with I < 200 mA, t < 400 ns and f < 20 MHz TDA8026_1 Product data sheet Unit Io = 1 mA [2] 1.8 V card; DC ICC(n) ≤ 35 mA peak-to-peak ripple voltage Max no load active mode; 2.7 V < VDD < 5.5 V Vripple(p-p) Typ on pins VCC(n); 20 kHz < card clock frequency < 200 MHz [2] All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 41 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC Table 45. Card drivers …continued VDD = VDD(INTF) = 3.3 V; fclk(ext) = 10 MHz; GND = 0 V; inductor = 10 µH; decoupling capacitors on pins VDD and VUP = 10 µF; Tamb = 25 °C unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit ICC supply current Standby mode and pin VCC(n) grounded - - −1 mA 5 V card - - 55 mA 3 V card - - 55 mA 1.8 V card - - 35 mA active mode; 2.7 V < VDD < 5.5 V sum of all card supply currents on pins VCC(n); active mode; All VCC pins = 5 V; fclk(ext) on pins CLK(n) = 5 MHz; ICC(1) = ICC(2) = 55 mA; ICC(3) = ICC(4) = ICC(5) = 2 mA [5] - 116 125 mA SR slew rate rising; maximum CL = 200 nF; 5 V, 3 V and 1.8 V cards 0.06 0.16 0.27 V/µs Cdec decoupling capacitance connected to VCC(n); 100 nF and 100 nF at 20 % 160 200 240 nF no load 0 - 0.1 V Io = 1 mA 0 - 0.3 V Card reset output pins: RST(1) to RST(5) Vo output voltage Standby mode Io output current Standby mode and pin RST(n) grounded 0 - −1 mA VOL LOW-level output voltage IOL ≤ 200 µA 0 - 0.3 V IOL ≤ 20 mA VCC(n) − 0.4 - VCC(n) V VOH HIGH-level output voltage −200 µA ≤ IOH ≤ 0 VCC(n) − 0.5 - VCC(n) V −20 mA ≤ IOH ≤ 0 0 - 0.4 V tr rise time CL = 100 pF; 10 % to 90 % - - 0.1 µs tf fall time CL = 100 pF; 90 % to 10 % - - 0.1 µs no load 0 - 0.1 V Io = 1 mA 0 - 0.3 V Clock to card output pins: CLK(1) to CLK(5); default register values Vo output voltage Standby mode Io output current Standby mode and CLK(n) pin grounded 0 - −1 mA VOL LOW-level output voltage IOL ≤ 200 µA 0 - 0.3 V IOL ≤ 70 mA VCC(n) − 0.4 - VCC(n) V VOH HIGH-level output voltage −200 µA ≤ IOH ≤ 0 VCC(n) − 0.5 - VCC(n) V −70 mA ≤ IOH ≤ 0 0 - 0.4 V tr rise time CL = 30 pF; 10 % to 90 % - - 7 ns tf fall time CL = 30 pF; 90 % to 10 % - - 7 ns fCLK frequency on pin CLK all CLK(n) pins; operating 0 - 20 MHz TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 42 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC Table 45. Card drivers …continued VDD = VDD(INTF) = 3.3 V; fclk(ext) = 10 MHz; GND = 0 V; inductor = 10 µH; decoupling capacitors on pins VDD and VUP = 10 µF; Tamb = 25 °C unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit δclk clock duty cycle CL = 30 pF 45 - 55 % SR slew rate rise and fall; CL = 30 pF; 90 % to 10 % 0.2 - V/ns Data line pins: I/O(1) to I/O(5), C4(1) and C8(1) Vo output voltage Standby mode no load 0 - 0.1 V Io = 1 mA - - 0.3 V - −1 mA Io output current Standby mode and I/O(n), C4(1) or C8(1) pins grounded. 0 VOL LOW-level output voltage IOL ≤ 1 mA 0 - 0.3 V IOL ≤ 15 mA VCC(n) − 0.4 - VCC(n) V HIGH-level output voltage no DC load 0.9VCC(n) - VCC(n) + 0.1 V −20 µA ≤ IOH ≤ 0 0.8VCC(n) - VCC(n) + 0.1 V −40 µA ≤ IOH ≤ 0 0.7VCC(n) - VCC(n) + 0.1 V −15 mA ≤ IOH ≤ 0 0 - 0.4 V −0.3 - +0.8 V 0.6VCC(n) - VCC(n) V VOH VIL LOW-level input voltage All VCC(n) VIH HIGH-level input voltage VCC(n) = 5 V and 3 V VCC(n) = 1.8 V 0.7VCC(n) - VCC(n) V Vhys hysteresis voltage on I/O(n) - 50 - mV IIL LOW-level input current 0 V applied to pin [3] - - 650 µA [3] - - 10 µA [3] 1 - - mA - 400 ns ILIH HIGH-level input leakage current VIH = VCC(n) Ipu pull-up current VOH = 0.9VCC(n); CL = 30 pF [3][4] td delay time falling edge on pins I/O and I/O(n) or vice versa tr(i) input rise time VIL minimum to VIH maximum; 10 % to 90 % - - 1.2 µs tf(i) input fall time VIL maximum to VIH minimum; 90 % to 10 % - - 1.2 µs tr(o) output rise time VIL minimum to VIH maximum; 10 % to 90 % - - 0.1 µs tf(o) output fall time VIL maximum to VIH minimum; 90 % to 10 % - - 0.1 µs Ci input capacitance Rpu pull-up resistance fmax maximum frequency TDA8026_1 Product data sheet [3] - - 10 pF between pins I/O(n) or C4(1) or C8(1) and VCC(n) [3] 8 10 12 kΩ input clock [3] - - 500 kHz All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 43 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC Table 45. Card drivers …continued VDD = VDD(INTF) = 3.3 V; fclk(ext) = 10 MHz; GND = 0 V; inductor = 10 µH; decoupling capacitors on pins VDD and VUP = 10 µF; Tamb = 25 °C unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit Card presence input: pin PRES; active HIGH when SPRES pin = LOW or active LOW when SPRES pin = HIGH VIL LOW-level input voltage −0.3 - +0.2 VDD(INTF) VIH HIGH-level input voltage 0.8 VDD(INTF) - VDD(INTF) + 0.3 V ILIL LOW-level input leakage Vi = 0.2VDD(INTF) current - - 70 µA ILIH HIGH-level input leakage current - - 5 µA tdeb debounce time - 17.8 23.8 ms Vi = 0.8VDD(INTF) V [1] Two ceramic multilayer capacitors of minimum 100 nF with low Equivalent Series Resistance (ESR) should be used in order to meet these specifications. [2] Output voltage towards the card, including ripple. [3] I/O(n) pin has an internal 10 kΩ pull-up resistor to VCC(n). [4] I/OUCn pin has an internal 11 kΩ pull-up resistor to VDD(INTF). [5] Maximum value measurement based on a 125 mA (sum of all card supply currents on pins VCC(n)) current load and a 75 % DC-to-DC converter and inductance efficiency; depends on PCB layout and external component quality (inductor, capacitor). Table 46. Sequencer and clock counter VDD = VDD(INTF) = 3.3 V; fclk(ext) = 10 MHz; GND = 0 V; inductor = 10 µH; decoupling capacitors on pins VDD and VUP = 10 µF; Tamb = 25 °C unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit tact activation time total sequence [1] - - 135 µs [1] 60 80 100 µs - 25 - µs tdeact deactivation time total sequence Tclk clock period sequencer [1] Refer to Section 8.8.3 for further information. Table 47. Interface signals to microcontroller VDD = VDD(INTF) = 3.3 V; fclk(ext) = 10 MHz; GND = 0 V; inductor = 10 µH; decoupling capacitors on pins VDD and VUP = 10 µF; Tamb = 25 °C unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit 0 - 0.3 V no DC load 0.9 VDD(INTF) - VDD(INTF) + 0.2 V −10 µA ≤ IOH ≤ 0 0.75 VDD(INTF) - VDD(INTF) + 0.2 V Data line pins: I/OUC1 and I/OUC2[1] VOL LOW-level output voltage VOH HIGH-level output voltage IOL = 1 mA VIL LOW-level input voltage −0.3 - +0.25 VDD(INTF) V VIH HIGH-level input voltage 0.7 VDD(INTF) - VDD(INTF) + 0.3 V IIL LOW-level input current VIL = 0 V - - 600 µA Vhys hysteresis voltage on I/OUC(n) - 0.19VDD(INTF) - V ILIH HIGH-level input leakage current VIH = VDD(INTF) - - µA TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 10 © NXP B.V. 2010. All rights reserved. 44 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC Table 47. Interface signals to microcontroller …continued VDD = VDD(INTF) = 3.3 V; fclk(ext) = 10 MHz; GND = 0 V; inductor = 10 µH; decoupling capacitors on pins VDD and VUP = 10 µF; Tamb = 25 °C unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit tr(o) output rise time VIL minimum to VIH maximum; 10 % to 90 % - - 0.1 µs tr(i) input rise time VIL minimum to VIH maximum; 10 % to 90 % - - 1.2 µs tf(o) output fall time VIL maximum to VIH minimum; 90 % to 10 % - - 0.1 µs tf(i) input fall time VIL maximum to VIH minimum; 90 % to 10 % - - 1.2 µs Ci input capacitance [1] - - 10 pF Rpu(int) internal pull-up resistance between pins I/OUC(n) and VDD(INTF) [1] 9 11 13 kΩ Ipu pull-up current VOH = 0.9 VDD, Ci = 30 pF −1 - - mA Clock input pins: CLKIN1 and CLKIN2 fclk(ext) external clock frequency on pins CLKIN1 and CLKIN2 0 - 20 MHz VIL LOW-level input voltage VDD(INTF) > 2 V 0 - 0.3 VDD(INTF) V 1.6 V ≤ VDD(INTF) ≤ 2 V 0 - 0.15VDD(INTF) V VIH HIGH-level input voltage VDD(INTF) > 2 V 0.7 VDD(INTF) - VDD(INTF) + 0.3 V 1.6 V ≤ VDD(INTF) ≤ 2 V 0.85 VDD(INTF) - VDD(INTF) + 0.3 V tr rise time 10 % to 90 % - - 0.1 / fclk(ext) ns tf fall time 90 % to 10 % - - 0.1 / fclk(ext) ns Logic input pins: A0, SPRES, INHIB, DCDC_OFF and TESTMODE VIL LOW-level input voltage −0.3 - +0.3 VDD(INTF) V VIH HIGH-level input voltage 0.7 VDD(INTF) - VDD(INTF) + 0.3 V ILIL LOW-level input leakage current −1 - +1 µA Vhys hysteresis voltage - 0.14VDD(INTF) - ILIH HIGH-level input leakage current −1 - +1 µA Ci input capacitance - - 10 pF on pin SPRES V Logic input pin: SDWNN VIL LOW-level input voltage −0.3 - +0.3 VDD(INTF) V VIH HIGH-level input voltage 0.7 VDD(INTF) - VDD(INTF) + 0.3 V ILIH HIGH-level input leakage current −1 - +1 µA Ci input capacitance - - 10 pF Rpu(int) internal pull-up resistance 2 2.5 3 MΩ TDA8026_1 Product data sheet between pins SDWNN and VDD(INTF) All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 45 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC Table 47. Interface signals to microcontroller …continued VDD = VDD(INTF) = 3.3 V; fclk(ext) = 10 MHz; GND = 0 V; inductor = 10 µH; decoupling capacitors on pins VDD and VUP = 10 µF; Tamb = 25 °C unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit Logic input pin: INTAUXN VIL LOW-level input voltage −0.3 - +0.3 VDD(INTF) V VIH HIGH-level input voltage 0.7 VDD(INTF) - VDD(INTF) + 0.3 V ILIL LOW-level input leakage current −425 −330 −260 µA Ci input capacitance - - 10 pF Rpu(int) internal pull-up resistance 8 10 12 kΩ - - 0.3 V - - 10 µA between pins INTAUXN and VDD(INTF); SDWNN pin equal to pin VDD(INTF) Interrupt line: IRQN pin; open-drain, active LOW output VOL LOW-level output voltage ILH HIGH-level leakage current IOL = 2 mA Logic input/output pins: TST1, TST2, STAP3, STAP4, STAP5 VIL LOW-level input voltage −0.3 - +0.3 VDD(INTF) V VIH HIGH-level input voltage 0.7 VDD(INTF) - VDD(INTF) + 0.3 V VOL LOW-level output voltage VDD(INTF) = 3.3 V; IOL = 4 mA 0 - 0.4 V VDD(INTF) = 1.8 V; IOL = 4 mA 0 - 0.4 V HIGH-level output voltage VDD(INTF) = 3.3 V; IOH = −4 mA VDD(INTF) − 0.4 - VDD(INTF) V VDD(INTF) = 1.8 V; IOH = −4 mA VDD(INTF) − 0.4 - VDD(INTF) V VDD(INTF) = 3.3 V; VOL = 0.3 VDD(INTF) 4 - - mA VDD(INTF) = 1.8 V; VOL = 0.3 VDD(INTF) 2 - - mA VDD(INTF) = 3.3 V; VOH = 0.7 VDD(INTF) −4 - - mA VDD(INTF) = 1.8 V; VOH = 0.7 VDD(INTF) −2 - - mA VOH IOL IOH LOW-level output current HIGH-level output current ILIL LOW-level input leakage current −1 - +1 µA ILIH HIGH-level input leakage current −1 - +1 µA Ci input capacitance - - 10 pF Co output capacitance - 30 - pF TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 46 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC Table 47. Interface signals to microcontroller …continued VDD = VDD(INTF) = 3.3 V; fclk(ext) = 10 MHz; GND = 0 V; inductor = 10 µH; decoupling capacitors on pins VDD and VUP = 10 µF; Tamb = 25 °C unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit Serial data input/output pin: SDA; open-drain VIL LOW-level input voltage −0.3 - +0.3 VDD(INTF) V VIH HIGH-level input voltage 0.7 VDD(INTF) - VDD(INTF) + 0.3 V VOL LOW-level output voltage IOL = 3 mA - - 0.3 V ILH HIGH-level leakage current I/O - - 1 µA ILL LOW-level leakage current depending on the pull-up resistance; input or output - - 1 µA Serial clock input pin: SCL VIL LOW-level input voltage −0.3 - +0.3 VDD(INTF) V VIH HIGH-level input voltage 0.7 VDD(INTF) - VDD(INTF) + 0.3 V ILIH HIGH-level input leakage current - - 1 µA IIL LOW-level input current - - 1 µA depends on the pull-up resistance I2C-bus timing; see Figure 13 fSCL SCL clock frequency 0 - 400 kHz tBUF bus free time between a STOP and START condition 1.3 - - µs tHD;STA hold time (repeated) START condition 0.6 - - µs tLOW LOW period of the SCL clock 1.3 - - µs tHIGH HIGH period of the SCL clock 0.6 - - µs tSU;STA set-up time for a repeated START condition 0.6 - - µs tHD;DAT data hold time 0 - - ns tSU;DAT data set-up time 100 - - ns tr rise time both SDA and SCL signals; 10 % to 90 % - - 300 ns tf fall time both SDA and SCL signals; 90 % to 10 % - - 300 ns tSU;STO set-up time for STOP condition 0.6 - - µs hold time after which first clock pulse is generated [2] [1] I/OUCn pin has an internal 11 kΩ pull-up resistor to VDD(INTF). [2] The hold time required (not greater than 300 ns) to bridge the undefined region of the falling edge of SCL must be internally provided by a transmitter. TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 47 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC Table 48. Protections VDD = VDD(INTF) = 3.3 V; fclk(ext) = 10 MHz; GND = 0 V; inductor = 10 µH; decoupling capacitors on pin VDD and VUP = 10 µF; Tamb = 25 °C unless otherwise specified. Symbol Parameter Tsd shutdown temperature Conditions Isd shutdown current IOlim output current limit Min Typ Max Unit 125 167 209 °C all VCC(n) pins 80 120 150 mA pins I/O(n) −15 - +15 mA pins CLK(n) −70 - +70 mA pins RST(n) −20 - +20 mA pins VCC(n) 80 - 150 mA Tamb ambient temperature −25 +25 +85 °C Tj junction temperature - - +125 °C ICC supply current - 170 - mA sum of all VCC(n) signals on all card slots; active mode; DC-to-DC converter on SDA tLOW tf tSU;DAT tr tf tHD;STA tSP tr tBUF SCL tHD;STA S tHD;DAT tHIGH tSU;STA tSU;STO Sr P S msc610 P = STOP condition; S = START condition. Fig 13. Timing requirements for the I2C-bus TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 48 of 59 xxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x xxxxxxxxxxxxxx xxxxxxxxxx xxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxx xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxx xxxxxxxxxxxxxx xxxxxx xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxxxx x x B4 PORADJ A8 C11 SDWNN VDD(INTF) 100 nF MICROCONTROLLER Rpu 3.3 kΩ Rpu 3.3 kΩ R1 SCL SDA 100 kΩ IRQN I/OUC1 I/OUC2 CLKIN1 CLKIN2 SPRES H5 GNDC (1) H3 VCC(1) G3 RST(1) G2 CLK(1) F2 C4(1) G1 C8(1) F1 I/O(1) E3 PRES(1) H2 A5 A4 B2 C2 E2 G8 E1 G5 G6 D2 G7 C4 TDA8026 F7 C5 F8 C3 E8 B3 F6 E6 H1 GND2 to GND10 D3 to D5, E4, E5, F3 to F5, H8 TESTMODE A3 D8 H7 D6 A2 C6 D7 A1 C5(1) 100 nF CARD CONNECTOR 2 VDD(INTF) R3 GNDC(2) 0Ω C7(1) 100 nF VCC(2) C8(2) 100 nF RST(2) C1 C2 C3 CLK(2) I/O(2) C9(1) 100 nF VCC(3) VDD(INTF) CLK(3) R4 I/O(3) 0Ω STAP3 C10(2) 100 nF C11(1) 100 nF VCC(4) C1 C2 C3 RST(4) CLK(4) C1 C2 C5 C6 C7 STAP4 R5 100 kΩ C13(1) R6 0Ω C12(2) 100 nF C14(2) C1 C2 C3 100 nF R8 0Ω R7 SAM 4 C5 C6 C7 VDD(INTF) 100 kΩ C5 C6 SAM 3 VDD(INTF) I/O(4) SAM 5 C3 C5 C6 C7 RST(3) 100 nF C7 SAM 2 PRES(2) 100 kΩ VDD(INTF) C5 C6 C7 C8 (1) Low ESR capacitor, placed near the IC. (2) Low ESR capacitor, placed near the C1 connector contact. Fig 14. Application diagram: TDA8026 with one card and four SAMs TDA8026 49 of 59 © NXP B.V. 2010. All rights reserved. 001aal093 Multiple smart card slot interface IC R9 RST(5) C1 D1 C7 B7 B6 B5 C8 I/O(5) TST2 B1 CLK(5) TST1 E7 STAP5 INHIB C1 C2 C3 C4 VUP LX G4 H4 B8 GNDS Rev. 1 — 9 March 2010 All information provided in this document is subject to legal disclaimers. A0 INTAUX C6(2) 100 nF VCC(5) DCDC_OFF A7 A6 0Ω C4 10 µF GNDP VDD GND1 100 nF VDD(INTREGD) C2 VDD(INTF) R2 C3 1 µF NXP Semiconductors D1 L1 10 µH 10 µF 12. Application information TDA8026_1 Product data sheet VDD C1 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 13. Package outline TFBGA64: plastic thin fine-pitch ball grid array package; 64 balls SOT1073-1 B D A ball A1 index area A2 A E A1 detail X e1 e 1/2 e ∅v ∅w b M M C C A B C y y1 C H e G F E e2 D 1/2 e C B A ball A1 index area 1 2 3 4 5 6 7 8 X 0 2.5 5 mm scale DIMENSIONS (mm are the original dimensions) UNIT mm max nom min A A1 A2 b D E e e1 e2 v w y y1 1.2 1.1 1.0 0.35 0.30 0.25 0.85 0.80 0.75 0.45 0.40 0.35 7.1 7.0 6.9 7.1 7.0 6.9 0.8 5.6 5.6 0.15 0.08 0.12 0.1 REFERENCES OUTLINE VERSION IEC JEDEC JEITA SOT1073-1 --- --- --- EUROPEAN PROJECTION ISSUE DATE 08-03-06 08-03-14 Fig 15. Package outline SOT1073-1 (TFBGA64) TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 50 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 14. Soldering of SMD packages This text provides a very brief insight into a complex technology. A more in-depth account of soldering ICs can be found in Application Note AN10365 “Surface mount reflow soldering description”. 14.1 Introduction to soldering Soldering is one of the most common methods through which packages are attached to Printed Circuit Boards (PCBs), to form electrical circuits. The soldered joint provides both the mechanical and the electrical connection. There is no single soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and Surface Mount Devices (SMDs) are mixed on one printed wiring board; however, it is not suitable for fine pitch SMDs. Reflow soldering is ideal for the small pitches and high densities that come with increased miniaturization. 14.2 Wave and reflow soldering Wave soldering is a joining technology in which the joints are made by solder coming from a standing wave of liquid solder. The wave soldering process is suitable for the following: • Through-hole components • Leaded or leadless SMDs, which are glued to the surface of the printed circuit board Not all SMDs can be wave soldered. Packages with solder balls, and some leadless packages which have solder lands underneath the body, cannot be wave soldered. Also, leaded SMDs with leads having a pitch smaller than ~0.6 mm cannot be wave soldered, due to an increased probability of bridging. The reflow soldering process involves applying solder paste to a board, followed by component placement and exposure to a temperature profile. Leaded packages, packages with solder balls, and leadless packages are all reflow solderable. Key characteristics in both wave and reflow soldering are: • • • • • • Board specifications, including the board finish, solder masks and vias Package footprints, including solder thieves and orientation The moisture sensitivity level of the packages Package placement Inspection and repair Lead-free soldering versus SnPb soldering 14.3 Wave soldering Key characteristics in wave soldering are: • Process issues, such as application of adhesive and flux, clinching of leads, board transport, the solder wave parameters, and the time during which components are exposed to the wave • Solder bath specifications, including temperature and impurities TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 51 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 14.4 Reflow soldering Key characteristics in reflow soldering are: • Lead-free versus SnPb soldering; note that a lead-free reflow process usually leads to higher minimum peak temperatures (see Figure 16) than a SnPb process, thus reducing the process window • Solder paste printing issues including smearing, release, and adjusting the process window for a mix of large and small components on one board • Reflow temperature profile; this profile includes preheat, reflow (in which the board is heated to the peak temperature) and cooling down. It is imperative that the peak temperature is high enough for the solder to make reliable solder joints (a solder paste characteristic). In addition, the peak temperature must be low enough that the packages and/or boards are not damaged. The peak temperature of the package depends on package thickness and volume and is classified in accordance with Table 49 and 50 Table 49. SnPb eutectic process (from J-STD-020C) Package thickness (mm) Package reflow temperature (°C) Volume (mm3) < 350 ≥ 350 < 2.5 235 220 ≥ 2.5 220 220 Table 50. Lead-free process (from J-STD-020C) Package thickness (mm) Package reflow temperature (°C) Volume (mm3) < 350 350 to 2000 > 2000 < 1.6 260 260 260 1.6 to 2.5 260 250 245 > 2.5 250 245 245 Moisture sensitivity precautions, as indicated on the packing, must be respected at all times. Studies have shown that small packages reach higher temperatures during reflow soldering, see Figure 16. TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 52 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC maximum peak temperature = MSL limit, damage level temperature minimum peak temperature = minimum soldering temperature peak temperature time 001aac844 MSL: Moisture Sensitivity Level Fig 16. Temperature profiles for large and small components For further information on temperature profiles, refer to Application Note AN10365 “Surface mount reflow soldering description”. 15. Abbreviations Table 51. Abbreviations and acronyms Acronym Description ATR Answer To Request CDM Charged Device Model ESD ElectroStatic Discharge ESR Equivalent Series Resistance HBM Human Body Model LSB Least Significant Bit MM Machine Model MSB Most Significant Bit PCB Printed-Circuit Board POR Power-On Reset POS Point Of Sales SAM Security Access Module 16. Revision history Table 52. Revision history Document ID Release date Data sheet status Change notice Supersedes TDA8026_1 20100309 Product data sheet - 1.2 [1] Versions 1.0 to 1.2 have all been superseded by this version which includes changes to symbols, pin names and drawings. TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 53 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 17. Legal information 17.1 Data sheet status Document status[1][2] Product status[3] Definition Objective [short] data sheet Development This document contains data from the objective specification for product development. Preliminary [short] data sheet Qualification This document contains data from the preliminary specification. Product [short] data sheet Production This document contains the product specification. [1] Please consult the most recently issued document before initiating or completing a design. [2] The term ‘short data sheet’ is explained in section “Definitions”. [3] The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is available on the Internet at URL http://www.nxp.com. 17.2 Definitions Draft — The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. Short data sheet — A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local NXP Semiconductors sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. Product specification — The information and data provided in a Product data sheet shall define the specification of the product as agreed between NXP Semiconductors and its customer, unless NXP Semiconductors and customer have explicitly agreed otherwise in writing. In no event however, shall an agreement be valid in which the NXP Semiconductors product is deemed to offer functions and qualities beyond those described in the Product data sheet. 17.3 Disclaimers Limited warranty and liability — Information in this document is believed to be accurate and reliable. However, NXP Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. In no event shall NXP Semiconductors be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. Notwithstanding any damages that customer might incur for any reason whatsoever, NXP Semiconductors’ aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Terms and conditions of commercial sale of NXP Semiconductors. Right to make changes — NXP Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. Suitability for use — NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or TDA8026_1 Product data sheet malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. NXP Semiconductors accepts no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer’s own risk. Applications — Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. NXP Semiconductors does not accept any liability related to any default, damage, costs or problem which is based on a weakness or default in the customer application/use or the application/use of customer’s third party customer(s) (hereinafter both referred to as “Application”). It is customer’s sole responsibility to check whether the NXP Semiconductors product is suitable and fit for the Application planned. Customer has to do all necessary testing for the Application in order to avoid a default of the Application and the product. NXP Semiconductors does not accept any liability in this respect. Limiting values — Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) will cause permanent damage to the device. Limiting values are stress ratings only and (proper) operation of the device at these or any other conditions above those given in the Recommended operating conditions section (if present) or the Characteristics sections of this document is not warranted. Constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device. Terms and conditions of commercial sale — NXP Semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms, unless otherwise agreed in a valid written individual agreement. In case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. NXP Semiconductors hereby expressly objects to applying the customer’s general terms and conditions with regard to the purchase of NXP Semiconductors products by customer. No offer to sell or license — Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. Export control — This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from national authorities. Quick reference data — The Quick reference data is an extract of the product data given in the Limiting values and Characteristics sections of this document, and as such is not complete, exhaustive or legally binding. Non-automotive qualified products — Unless this data sheet expressly states that this specific NXP Semiconductors product is automotive qualified, the product is not suitable for automotive use. It is neither qualified nor tested in accordance with automotive testing or application requirements. NXP Semiconductors accepts no liability for inclusion and/or use of non-automotive qualified products in automotive equipment or applications. All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 54 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC In the event that customer uses the product for design-in and use in automotive applications to automotive specifications and standards, customer (a) shall use the product without NXP Semiconductors’ warranty of the product for such automotive applications, use and specifications, and (b) whenever customer uses the product for automotive applications beyond NXP Semiconductors’ specifications such use shall be solely at customer’s own risk, and (c) customer fully indemnifies NXP Semiconductors for any liability, damages or failed product claims resulting from customer design and use of the product for automotive applications beyond NXP Semiconductors’ standard warranty and NXP Semiconductors’ product specifications. 17.4 Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. I2C-bus — logo is a trademark of NXP B.V. 18. Contact information For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: [email protected] TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 55 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 19. Tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. Table 12. Table 13. Table 14. Table 15. Table 16. Table 17. Table 18. Table 19. Table 20. Table 21. Table 22. Table 23. Table 24. Table 25. Table 26. Quick reference data . . . . . . . . . . . . . . . . . . . . .2 Ordering information . . . . . . . . . . . . . . . . . . . . .3 TDA8026 ball map . . . . . . . . . . . . . . . . . . . . . . .5 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . .6 Base addressing . . . . . . . . . . . . . . . . . . . . . . .14 Write mode addresses . . . . . . . . . . . . . . . . . .14 Register overview . . . . . . . . . . . . . . . . . . . . . .16 Bank 0 register (address: 48h) bit allocation . .18 Bank 0 bit description . . . . . . . . . . . . . . . . . . .18 Bank 1 CSb[7:0] Register0 (address 40h) card slot 1 and card slot 2 bit allocation . . . . . . . . . .18 Bank 1 Register0 card slot 1 (address 01h) and card slot 2 (address 02h) read mode bit descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . .19 Bank 1 Register0 card slot 1 (address 01h) and card slot 2 (address 02h) write mode bit descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Bank 1 CSb[7:0] Register0 (address 42h) card slots 1 and card slots 2 bit allocation . . . . . . . .21 Bank 1 Register1 (REG[1:0] = 00) card slot 1 (address 01h) and card slot 2 (address 02h) Read/Write mode bit descriptions . . . . . . . . . .21 Bank 1 Register1 (REG[1:0] = 01) card slot 1 (address 01h) and card slot 2 (address 02h) bit allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 Bank 1 Register1 (REG[1:0] = 01) card slot 1 (address 01h) and card slot 2 (address 02h) Read/Write mode bit descriptions . . . . . . . . . .23 Bank 1 Register1 (REG[1:0] = 10) card slot 1 (address 01h) and card slot 2 (address 02h) bit allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 Bank 1 Register1 (REG[1:0] = 10) card slot 1 (address 01h) and card slot 2 (address 02h) Read/Write mode bit descriptions . . . . . . . . . .23 Bank 1 Register1 (REG[1:0] = 11) card slot 1 (address 01h) and card slot 2 (address 02h) bit allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 Bank 1 Register1 (REG[1:0] = 11) card slot 1 (address 01h) and card slot 2 (address 02h) read/write mode bit descriptions . . . . . . . . . . .23 Bank 1 CSb[7:0] Register0 (address 40h) card slots 3 to 5 bit allocation . . . . . . . . . . . . . . . . .24 Bank 1 Register0 card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) read mode bit descriptions . . . .24 Bank 1 Register0 card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) write mode bit descriptions . . . .25 Bank 1 CSb[7:0] Register1 (address 42h) card slots 3 and 5 bit allocation . . . . . . . . . . . . . . . .26 Bank 1 Register1 (REG[1:0] = 00) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) read/write mode . . . . . . .26 Bank 1 Register1 (REG[1:0] = 01) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) bit allocation . . . . . . . . . .27 TDA8026_1 Product data sheet Table 27. Bank 1 Register1 (REG[1:0] = 01) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) read/write mode bit descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Table 28. Bank 1 Register1 (REG[1:0] = 10) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) bit allocation . . . . . . . . . . 28 Table 29. Bank 1 Register1 (REG[1:0] = 10) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) read/write mode bit descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Table 30. Bank 1 Register1 (REG[1:0] = 11) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) bit allocation . . . . . . . . . . 28 Table 31. Bank 1: Bank 1 Register1 (REG[1:0] = 11) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) read/write mode bit descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Table 32. Asynchronous mode card clock settings . . . . . 29 Table 33. Synchronous mode card clock settings . . . . . . 29 Table 34. Bank 1 General registers (addresses: 40h, 42h; CSb[7:0] = 00h, 06h) bit allocation . . . . . . . . . 30 Table 35. Bank 1 Product version register (address 40h; CSb[7:0] = 00h) read mode bit descriptions . . 30 Table 36. Bank 1 Interrupt register (address 42h; CSb[7:0] = 00h) read mode bit descriptions . . 31 Table 37. Bank 1 Slew rate register (address 40h; CSb[7:0] = 06h) read/write mode bit descriptions . . . . . . . . . . . . . . . . . . . . . . . . 31 Table 38. Clock Slew rate . . . . . . . . . . . . . . . . . . . . . . . . 37 Table 39. I/O slew rate . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Table 40. Limiting values . . . . . . . . . . . . . . . . . . . . . . . . . 39 Table 41. Thermal characteristics . . . . . . . . . . . . . . . . . . 39 Table 42. Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Table 43. Supply supervisor . . . . . . . . . . . . . . . . . . . . . . 40 Table 44. DC-to-DC converter . . . . . . . . . . . . . . . . . . . . 41 Table 45. Card drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Table 46. Sequencer and clock counter . . . . . . . . . . . . . 44 Table 47. Interface signals to microcontroller . . . . . . . . . 44 Table 48. Protections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Table 49. SnPb eutectic process (from J-STD-020C) . . . 52 Table 50. Lead-free process (from J-STD-020C) . . . . . . 52 Table 51. Abbreviations and acronyms . . . . . . . . . . . . . . 53 Table 52. Revision history . . . . . . . . . . . . . . . . . . . . . . . . 53 All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 56 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 20. Figures Fig 1. Fig 2. Fig 3. Fig 4. Fig 5. Fig 6. Fig 7. Fig 8. Fig 9. Fig 10. Fig 11. Fig 12. Fig 13. Fig 14. Fig 15. Fig 16. TDA8026 Block diagram . . . . . . . . . . . . . . . . . . . .4 TDA8026 pin configuration for the TFBGA64 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 TDA8026 Power diagram . . . . . . . . . . . . . . . . . . . .8 The enter shutdown sequence. . . . . . . . . . . . . . .10 The exit shutdown sequence . . . . . . . . . . . . . . . .10 The voltage supervisor circuit . . . . . . . . . . . . . . .11 VDD voltage supervisor . . . . . . . . . . . . . . . . . . . .11 VDD(INTF) voltage supervisor. . . . . . . . . . . . . . . . .12 The DC-to-DC converter . . . . . . . . . . . . . . . . . . .32 The card slot activation sequence . . . . . . . . . . . .34 Deactivation sequence. . . . . . . . . . . . . . . . . . . . .35 ATR counter timing check . . . . . . . . . . . . . . . . . .36 Timing requirements for the I2C-bus . . . . . . . . . .48 Application diagram: TDA8026 with one card and four SAMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49 Package outline SOT1073-1 (TFBGA64). . . . . . .50 Temperature profiles for large and small components . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53 TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 57 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 21. Contents 1 2 3 4 5 6 7 7.1 7.2 8 8.1 8.2 8.2.1 8.2.2 8.2.3 8.2.4 8.2.4.1 8.2.4.2 8.3 8.3.1 8.3.2 8.3.3 8.4 8.4.1 8.4.2 8.4.3 8.4.4 8.5 8.5.1 8.5.2 8.5.2.1 8.5.2.2 8.5.3 8.5.3.1 8.5.3.2 8.5.3.3 8.5.3.4 General description . . . . . . . . . . . . . . . . . . . . . . 1 Features and benefits . . . . . . . . . . . . . . . . . . . . 1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Quick reference data . . . . . . . . . . . . . . . . . . . . . 2 Ordering information . . . . . . . . . . . . . . . . . . . . . 3 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Pinning information . . . . . . . . . . . . . . . . . . . . . . 5 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 6 Functional description . . . . . . . . . . . . . . . . . . . 8 Power supplies . . . . . . . . . . . . . . . . . . . . . . . . . 8 Power modes . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Standby mode. . . . . . . . . . . . . . . . . . . . . . . . . . 9 Active mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Clock-stop mode. . . . . . . . . . . . . . . . . . . . . . . . 9 Shutdown mode . . . . . . . . . . . . . . . . . . . . . . . . 9 Entering shutdown mode . . . . . . . . . . . . . . . . . 9 Exiting shutdown mode. . . . . . . . . . . . . . . . . . 10 Voltage supervisors . . . . . . . . . . . . . . . . . . . . 11 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . 11 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 VDD(INTREGD) voltage supervisor without external divider on PORADJ pin . . . . . . . . . . . 12 I2C-bus description . . . . . . . . . . . . . . . . . . . . . 13 I2C-bus protocol . . . . . . . . . . . . . . . . . . . . . . . 13 Bus conditions . . . . . . . . . . . . . . . . . . . . . . . . 13 Data transfer . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Device addressing . . . . . . . . . . . . . . . . . . . . . 14 Banks and registers . . . . . . . . . . . . . . . . . . . . 15 Register overview . . . . . . . . . . . . . . . . . . . . . . 16 Bank 0 register description . . . . . . . . . . . . . . . 18 Bank 0 register (address: 48h) bit allocation . 18 Bank 0 bit description . . . . . . . . . . . . . . . . . . . 18 Bank 1 card slots 1 and 2 register descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Bank 1 CSb[7:0] Register0 (address 40h) card slot 1 and card slot 2 bit allocation . . . . . . . . . 18 Bank 1 Register0 card slot 1 (address 01h) and card slot 2 (address 02h) read mode bit descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Bank 1 Register0 card slot 1 (address 01h) and card slot 2 (address 02h) write mode bit descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Bank 1 CSb[7:0] Register0 (address 42h) card slots 1 and card slot 2 bit allocation . . . . . . . . 21 8.5.3.5 8.5.3.6 8.5.3.7 8.5.3.8 8.5.3.9 8.5.3.10 8.5.3.11 8.5.4 8.5.4.1 8.5.4.2 8.5.4.3 8.5.4.4 8.5.4.5 8.5.4.6 8.5.4.7 8.5.4.8 Bank 1 Register1 (REG[1:0] = 00) card slot 1 (address 01h) and card slot 2 (address 02h) read/write mode bit descriptions . . . . . . . . . . 21 Bank 1 Register1 (REG[1:0] = 01) card slot 1 (address 01h) and card slot 2 (address 02h) bit allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Bank 1 Register1 (REG[1:0] = 01) card slot 1 (address 01h) and card slot 2 (address 02h) read/write mode bit descriptions . . . . . . . . . . 23 Bank 1 Register1 (REG[1:0] = 10) card slot 1 (address 01h) and card slot 2 (address 02h) bit allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Bank 1 Register1 (REG[1:0] = 10) card slot 1 (address 01h) and card slot 2 (address 02h) read/write mode bit descriptions . . . . . . . . . . 23 Bank 1 Register1 (REG[1:0] = 11) card slot 1 (address 01h) and card slot 2 (address 02h) bit allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Bank 1 Register1 (REG[1:0] = 11) card slot 1 (address 01h) and card slot 2 (address 02h) read/write mode bit descriptions . . . . . . . . . . 23 Card slots 3 to 5 register descriptions . . . . . . 24 Bank 1 CSb[7:0] Register0 (address 40h) card slots 3 to 5 bit allocation. . . . . . . . . . . . . . . . . 24 Bank 1 Register0 card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) read mode bit descriptions . . . 24 Bank 1 Register0 card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) write mode bit descriptions . . . 25 Bank 1 CSb[7:0] Register1 (address 42h) card slots 3 and 5 bit allocation . . . . . . . . . . . . . . . 26 Bank 1 Register1 (REG[1:0] = 00) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) read/write mode. . . . . . . 26 Bank 1 Register1 (REG[1:0] = 01) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) bit allocation . . . . . . . . . 27 Bank 1 Register1 (REG[1:0] = 01) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) read/write mode bit descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Bank 1 Register1 (REG[1:0] = 10) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) bit allocation . . . . . . . . . 28 continued >> TDA8026_1 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 9 March 2010 © NXP B.V. 2010. All rights reserved. 58 of 59 TDA8026 NXP Semiconductors Multiple smart card slot interface IC 8.5.4.9 Bank 1 Register1 (REG[1:0] = 10) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) read/write mode bit descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . 28 8.5.4.10 Bank 1 Register1 (REG[1:0] = 11) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) bit allocation . . . . . . . . . . 28 8.5.4.11 Bank 1: Bank 1 Register1 (REG[1:0] = 11) card slot 3 (address 03h), card slot 4 (address 04h) and card slot 5 (address 05h) read/write mode bit descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . 28 8.5.5 Selection of asynchronous or synchronous mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 8.5.6 General registers . . . . . . . . . . . . . . . . . . . . . . 30 8.5.6.1 Bank 1 General registers (address: 40h, 42h; CSb[7:0] = 00h, 06h) bit allocation . . . . . . . . . 30 8.5.6.2 Bank 1 Product version register (address 40h; CSb[7:0] = 00h) read mode bit descriptions . . 30 8.5.6.3 Bank 1 Interrupt register (address 42h; CSb[7:0] = 00h) read mode bit descriptions . . 31 8.5.6.4 Bank 1 Slew rate register (address 40h; CSb[7:0] = 06h) read/write mode bit descriptions . . . . . . . . . . . . . . . . . . . . . . . . 31 8.6 DC-to-DC converter . . . . . . . . . . . . . . . . . . . . 32 8.7 VCC buffer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 8.8 Sequencer and clock counter . . . . . . . . . . . . . 32 8.8.1 Standby mode. . . . . . . . . . . . . . . . . . . . . . . . . 33 8.8.2 Activation sequence . . . . . . . . . . . . . . . . . . . . 33 8.8.3 Deactivation sequence . . . . . . . . . . . . . . . . . . 34 8.9 Answer to reset counters . . . . . . . . . . . . . . . . 35 8.10 Slew rate control . . . . . . . . . . . . . . . . . . . . . . . 37 8.11 Fault detection . . . . . . . . . . . . . . . . . . . . . . . . 38 9 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 39 10 Thermal characteristics. . . . . . . . . . . . . . . . . . 39 11 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 40 12 Application information. . . . . . . . . . . . . . . . . . 49 13 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 50 14 Soldering of SMD packages . . . . . . . . . . . . . . 51 14.1 Introduction to soldering . . . . . . . . . . . . . . . . . 51 14.2 Wave and reflow soldering . . . . . . . . . . . . . . . 51 14.3 Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 51 14.4 Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 52 15 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 53 16 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 53 17 Legal information. . . . . . . . . . . . . . . . . . . . . . . 54 17.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 54 17.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 17.3 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 17.4 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 18 19 20 21 Contact information . . . . . . . . . . . . . . . . . . . . Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 56 57 58 Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. © NXP B.V. 2010. All rights reserved. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: [email protected] Date of release: 9 March 2010 Document identifier: TDA8026_1