PCA9701; PCA9702 18 V tolerant SPI 16-bit/8-bit GPI with INT Rev. 05 — 11 November 2009 Product data sheet 1. General description The PCA9701/PCA9702 are low power 18 V tolerant SPI General Purpose Input (GPI) shift register designed to monitor the status of switch inputs. It generates an interrupt when one or more of the switch inputs change state. The input level is recognized as a HIGH when it is greater than 0.7 × VDD and as a LOW when it is less than 0.4 × VDD (minimum threshold of 2 V at 5 V node). The PCA9701 can monitor up to 16 switch inputs and the PCA9702 can monitor up to 8 switch inputs. The falling edge of the CS pin samples the input port status and clears the interrupt. When CS is LOW, the rising edge of the SCLK loads the shift register and shifts the value out of the shift register. The serial input is sampled on the falling edge of SCLK. Each of the input ports has a 18 V breakdown ESD protection circuit. When used with a series resistor (minimum 100 kΩ), the input can connect to a 12 V battery and support double battery, reverse battery, 27 V jump start and 40 V load dump conditions in automotive applications. Higher voltages can be tolerated on the inputs depending on the series resistor used to limit the input current. With both the high breakdown voltage and high ESD, these devices are useful for both automotive (AEC-Q100 compliance available) and mobile applications. The PCA9703/PCA9704 are new pin compatible devices for the PCA9701/PCA9702 which have an interrupt masking feature allowing selected inputs to not generate interrupts and provides higher ground offset of 0.55 × VDD (minimum of 2.5 V at 5 V node) with minimum hysteresis of 0.05 × VDD (minimum of 225 mV at 5 V node). 2. Features n 16 general purpose input ports (PCA9701) or 8 general purpose input ports (PCA9702) n 18 V tolerant input ports with 100 kΩ external series resistor n Input LOW threshold 0.4 × VDD with minimum of 2 V at VDD = 4.5 V n Open-drain interrupt output n Interrupt enable pin (INT_EN) disables interrupt output n VDD range: 2.5 V to 5.5 V n IDD is very low 2.5 µA maximum n SPI serial interface with speeds up to 5 MHz n AEC-Q100 compliance available n ESD protection exceeds 8 kV HBM per JESD22-A114, 350 V MM per AEC-Q100, and 1000 V CDM per JESD22-C101 n Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT n Operating temperature range: −40 °C to +125 °C n PCA9701 offered in SO24, TSSOP24 and HWQFN24 packages n PCA9702 offered in TSSOP16 package 3. Applications n n n n n n Body control modules Switch monitoring Industrial equipment Cellular telephones Emergency lighting SBC wake pin extension 4. Ordering information Table 1. Ordering information Type number Topside mark Package Name Description Version PCA9701D PCA9701D SO24 plastic small outline package; 24 leads; body width 7.5 mm SOT137-1 PCA9701HF 9701 HWQFN24 plastic thermal enhanced very very thin quad flat package; no leads; 24 terminals; body 4 × 4 × 0.75 mm PCA9701PW PCA9701PW TSSOP24 plastic thin shrink small outline package; 24 leads; body width 4.4 mm SOT355-1 PCA9701PW/Q900[1] PCA9701PW TSSOP24 plastic thin shrink small outline package; 24 leads; body width 4.4 mm SOT355-1 PCA9702PW PCA9702 TSSOP16 plastic thin shrink small outline package; 16 leads; body width 4.4 mm SOT403-1 PCA9702PW/Q900[2] PCA9702 TSSOP16 plastic thin shrink small outline package; 16 leads; body width 4.4 mm SOT403-1 [1] PCA9701PW/Q900 is AEC-Q100 compliant. Contact [email protected] for PPAP. [2] PCA9702PW/Q900 is AEC-Q100 compliant. Contact [email protected] for PPAP. PCA9701_PCA9702_5 Product data sheet SOT994-1 © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 2 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT 5. Block diagram VDD PCA9701/PCA9702 INT IN0 DFF0 IN1 DFF1 INT_EN SHIFT REGISTER INn(1) SDOUT SDIN SCLK CS DFFn(1) INPUT STATUS REGISTER 20 µA VSS 002aac422 (1) n = 15 for PCA9701; n = 7 for PCA9702 Fig 1. Block diagram of PCA9701; PCA9702 PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 3 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT 6. Pinning information 6.1 Pinning SDOUT 1 1 2 24 VDD 23 SDIN SDOUT INT INT 2 24 VDD 23 SDIN INT_EN 3 22 SCLK INT_EN 3 22 SCLK IN0 4 21 CS IN0 4 21 CS IN1 5 20 IN15 IN1 5 20 IN15 IN2 6 19 IN14 IN2 6 IN3 7 18 IN13 IN3 7 IN4 8 17 IN12 IN4 8 17 IN12 IN5 9 16 IN11 IN5 9 16 IN11 IN6 10 15 IN10 IN6 10 15 IN10 IN7 11 14 IN9 IN7 11 14 IN9 VSS 12 13 IN8 VSS 12 13 IN8 PCA9701D 002aac636 Fig 3. Pin configuration for TSSOP24 19 SCLK 20 SDIN 21 VDD 22 SDOUT 23 INT 24 INT_EN 18 IN13 002aac424 Fig 2. Pin configuration for SO24 terminal 1 index area 19 IN14 PCA9701PW PCA9701PW/Q900 IN0 1 18 CS IN1 2 17 IN15 SDOUT 1 16 VDD IN2 3 16 IN14 INT 2 15 SDIN IN3 4 15 IN13 INT_EN 3 IN4 5 14 IN12 IN0 4 IN5 6 13 IN11 IN1 5 IN2 6 11 IN6 IN3 7 10 IN5 VSS 8 IN10 12 IN9 11 IN8 10 9 VSS 8 IN7 IN6 7 PCA9701HF 002aad050 Transparent top view Fig 4. Pin configuration for HWQFN24 13 CS 12 IN7 9 IN4 002aac425 Fig 5. Pin configuration for TSSOP16 PCA9701_PCA9702_5 Product data sheet 14 SCLK PCA9702PW PCA9702PW/Q900 © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 4 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT 6.2 Pin description Table 2. Pin description Symbol Pin Type Description 3-state serial data output; normally high-impedance SO24, TSSOP24 HWQFN24 TSSOP16 SDOUT 1 22 1 output INT 2 23 2 output open-drain interrupt output (active LOW) INT_EN 3 24 3 input interrupt output enable 1 = interrupt is enabled 0 = interrupt is disabled and high-impedance IN0 4 1 4 input input port 0 IN1 5 2 5 input input port 1 IN2 6 3 6 input input port 2 IN3 7 4 7 input input port 3 IN4 8 5 9 input input port 4 IN5 9 6 10 input input port 5 IN6 10 7 11 input input port 6 IN7 11 8 12 input input port 7 VSS 12 9[1] 8 ground ground supply IN8 13 10 - input input port 8 IN9 14 11 - input input port 9 IN10 15 12 - input input port 10 IN11 16 13 - input input port 11 IN12 17 14 - input input port 12 IN13 18 15 - input input port 13 IN14 19 16 - input input port 14 IN15 20 17 - input input port 15 CS 21 18 13 input chip select (active LOW) SCLK 22 19 14 input serial input clock SDIN 23 20 15 input serial data input (20 µA pull-down) VDD 24 21 16 supply supply voltage [1] HWQFN24 package die supply ground is connected to both VSS pin and exposed center pad. VSS pin must be connected to supply ground for proper device operation. For enhanced thermal, electrical, and board level performance, the exposed pad needs to be soldered to the board using a corresponding thermal pad on the board and for proper heat conduction through the board, thermal vias need to be incorporated in the PCB in the thermal pad region. PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 5 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT 7. Functional description PCA9701 is a 16-bit General Purpose Input (GPI) with an open-drain interrupt output designed to monitor switch status. By putting an external 100 kΩ series resistor at the input port, the device allows the input to tolerate momentary double 12 V battery, reverse battery, 27 V jump start or 40 V load dump conditions. The interrupt output is asserted when an input port status changes. The open-drain interrupt output is enabled when INT_EN is HIGH and disabled when INT_EN is LOW. The input port status is accessed via the 4-wire SPI interface. The PCA9702 is the 8-bit version of the PCA9701. Multiple PCA9701 or PCA9702 devices can be serially connected for monitoring a large number of switches by connecting the SDOUT of one device to the SDIN of the next device. SCLK and CS must be common among all devices and interrupt outputs may be tied together. No external logic is necessary because all the devices’ interrupt outputs are open-drain that function as ‘wired-AND’ and can simply be connected together to a single pull-up resistor. 7.1 SPI bus operation The PCA9701 or PCA9702 interfaces with the controller via the 4-wire SPI bus that is comprised of the following signals: chip select (CS), serial clock (SCLK), serial data in (SDIN), and serial data out (SDOUT). To access the device, the controller asserts CS LOW, then sends SCLK and SDIN. When reading/writing is complete, the controller de-asserts CS. See Figure 6 for register access timing. 7.1.1 CS - chip select The CS pin is the device chip select and is an active LOW input. The falling edge of CS captures the input port status in the input status register. If the interrupt output is asserted, the falling edge of CS will clear the interrupt. When CS is LOW, the SPI interface is active. When CS is HIGH, the SPI interface is disabled. 7.1.2 SCLK - serial clock input SCLK is the serial clock input to the device. It should be LOW and remain LOW during the falling and rising edge of CS. When CS is LOW, the first rising edge of SCLK parallel loads the shift register from the input. The subsequent rising edges on SCLK serially shifts data out from the shift register. The falling edge of SCLK samples the data on SDIN. 7.1.3 SDIN - serial data input SDIN is the serial data input port. The data is sampled into the shift register on the falling edge of SCLK. SDIN is only active when CS is LOW. This input has a 20 µA pull-down current source. 7.1.4 SDOUT - serial data output SDOUT is the serial data output signal. SDOUT is high-impedance when CS is HIGH and switches to low-impedance after CS goes LOW. When CS is LOW, after the first rising edge of SCLK the most significant bit in the shift register is presented on SDOUT. Subsequent rising edges of SCLK shift the remaining data from the shift register onto SDOUT. PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 6 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT 7.1.5 Register access timing Figure 6 shows the waveforms of the device operation. Initially CS is HIGH and SCLK is LOW. On the falling edge of CS, input port status, DATA[n:0] is captured into the input status register, and subsequently the first rising edge of SCLK parallel loads the shift register. The falling edge of SCLK samples the data on the SDIN. The MSB from the shift register is valid and available on the SDOUT after the first rising edge of SCLK. sample SDIN CS SCLK MSB in MSB − 1 in LSB in SDOUT MSB out MSB − 1 out LSB out shift register DATA[n:0] SDIN high-impedance input status register DATA[n:0] 002aac426 DATA[n:0] is data on the input pins, IN[n:0]. For 8-bit GPI (PCA9702), n = 7; for 16-bit GPI (PCA9701), n = 15. Shaded areas indicate active but invalid data. Fig 6. Register access timing 7.2 Interrupt output INT is the open-drain interrupt output and is active LOW. A pull-up resistor of approximately 10 kΩ is recommended. The interrupt output is asserted when the input status is changed, and is cleared on the falling edge of CS or when the input port status matches the input status register. When there are multiple devices, the INT outputs may be tied together to a single pull-up. Table 3 illustrates the state of the interrupt output versus the state of the input port and input status register. The interrupt output is asserted when the input port and input status register differ. PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 7 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT Table 3. Interrupt output function truth table H = HIGH; L = LOW; X = don’t care INT_EN Input port status Input status register[1] INT output[2] H L L H H L H L H H L L H H H H L X X H [1] Input status register is the value or content of the D flip-flops. [2] Logic states shown for INT pin assumes 10 kΩ pull-up resistor. 7.3 General Purpose Inputs The General Purpose Inputs (GPI) are designed to behave like a typical input in the 0 V to 5.5 V range, but are also designed to have low leakage currents at elevated voltages. The input structure allows for elevated voltages to be applied through a series resistor. The series resistor is required when the input voltage is above 5.5 V. The series resistor is required for two reasons: first, to prevent damage to the input avalanche diode, and second, to prevent the ESD protection circuitry from creating an excessive current flow. The ESD protection circuitry includes a latch-back style device, which provides excellent ESD protection during assembly or typical 5.5 V applications. The series resistor limits the current flowing into the part and provides additional ESD protection. The limited current prevents the ESD latch-back device from latching back to a low voltage, which would cause excessive current flow and damage the part. The minimum required series resistance for applications with input voltages above 5.5 V is 100 kΩ. For applications requiring an applied voltage above 27 V, Equation 1 is recommended to determine the series resistor. Failure to include the appropriate input series resistor may result in product failure and will void the warranty. voltage applied – 17 V R s = -----------------------------------------------------------II (1) The series resistor should be placed physically as close as possible to the connected input to reduce the effective node capacitance. The input response time is effected by the RC time constant of the series resistor and the input node capacitance. PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 8 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT 7.3.1 VIL, VIH and switching points A minimum LOW threshold of 2.0 V is guaranteed for the logical switching points for the inputs. See Figure 7 for details. VI HIGH VDD 0.7VDD VIH VIL 0.4VDD hysteresis minimum possible ground shift LOW 0V 002aae128 Fig 7. Logic level thresholds for general purpose inputs The VIL is specified as a maximum of 0.40 × VDD and is 2.0 V at 4.5 V VDD. This means that if the user applies 2.0 V or less to the input (with VDD = 4.5 V), or as the voltage passes this threshold, they will always see a LOW. The VIH is specified as a minimum of 0.7 × VDD. This means that if the user applies 3.15 V or more to the input (with VDD = 4.5 V), or as the voltage passes this threshold, they will always see a HIGH. PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 9 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT 8. Application design-in information 8.1 General application 2.5 V to 5.5 V 18 V 1.5 kΩ 100 kΩ VDD IN0 10 kΩ relay INT CS SCLK SDIN SDOUT 18 V CONTROLLER OR PROCESSOR 100 kΩ INT_EN IN1 180 V open PCA9701/ PCA9702 500 kΩ IN2 50 kΩ 5V 10 kΩ INn(1) VSS 002aac423 (1) n = 15 for PCA9701; n = 7 for PCA9702 Fig 8. Typical application 8.2 Automotive application Supports: • • • • • 12 V battery (8 V to 16 V) Double battery (16 V to 32 V) Reverse battery (−8 V to −16 V) Jump start (27 V for 60 seconds) Load dump (40 V) PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 10 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT 8.2.1 SBC wake port extension with cyclic biasing System Basis Chips (SBC) offer many functions needed for in-vehicle networking solutions. Some of the features built into SBC are: • • • • Transceivers (HS-CAN, LIN 2.0) Scalable voltage regulators Watchdog timers; wake-up function Fail-safe function For more information on SBC, refer to http://www.nxp.com/index.html#/pip/pip=[pfp=53482]|pp=[t=pfp,i=53482]. 8.2.1.1 UJA106x with PCA9701, standby V3 alternate PVR100AD-B5V0 UJA106x IN0 INT IN1 INT_EN PCA9701 VDD CS SDIN SDOUT SCLK IN15 WAKE V1 GND VSS VCC CSN µC MOSI MISO SCLK GND 002aae016 Fig 9. • • • • UJA106x with PCA9701 with supplied µC (standby) PCA970x fits to SBC UJA106x and UJA107x family PCA970x can be powered by V1 of SBC Extends the SBC with 8/16 additional wake inputs µC can be set to stop-mode during standby to save ECU standby current. SBC with GPI periodically monitors the wake inputs – Cyclic bias via V3 – Very low system current consumption even with clamped switches PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 11 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT 8.2.1.2 UJA106x with PCA9701, sleep alternate PVR100AD-B5V0 alternate PMEM4010ND V3 UJA106x WAKE IN0 VDD INT_EN IN1 INT PCA9701 RSTN CS SDIN SDOUT SCLK IN15 V1 alternate PDTC144TU VSS GND VCC CSN µC MOSI MISO SCLK GND 002aae017 Fig 10. UJA106x with PCA9701 with unsupplied µC (sleep) • Very low quiescent system current (50 µA) due to disabled µC and cyclically biasing of switches • Wake-up upon change of switches or upon bus traffic (CAN and LIN) • PCA970x supplied out of cyclically biased transistor regulator PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 12 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT 8.2.1.3 UJA107x with PCA9701, standby BAT alternate PDTA144EU BAT WBIAS UJA107x IN0 INT IN1 INT_EN PCA9701 WAKE V1 GND VDD CS SDIN SDOUT SCLK IN15 VCC CSN µC MOSI MISO SCLK GND VSS 002aae018 Fig 11. UJA107x with PCA9701 with supplied µC (standby) • UJA107x SBC provides WBIAS pin for cyclic biasing of the inputs • Compatible with UJA107x based ASSPs 8.2.2 Application examples including switches to battery BAT BAT switch bias switch bias IN0 IN0 IN1 IN1 PCA9701 clamp 15 PCA9701 IN15 IN15 002aae019 Fig 12. Clamp 15 (ignition) detection 002aae020 Fig 13. Switches to battery and ground with cyclic biasing PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 13 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT 9. Limiting values Table 4. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Tamb = −40 °C to +125 °C, unless otherwise specified. Symbol Parameter Conditions VDD supply voltage II input current IN[n:0] pins with series resistor and VI > 5.5 V, [1][2] VI input voltage GPI pins IN[n:0]; no series resistor [1][2] Tstg storage temperature Tj(max) maximum junction temperature SPI pins operating Min Max Unit −0.5 +6.0 V - 350 µA −0.5 +6 V −0.5 +6 V −65 +150 °C - 125 °C [1] With GPI external series resistors, the inputs support double battery, reverse battery and load dump conditions. During double battery or load dump the input pin will drain slightly higher leakage current until the input drops to 18 V. For more detail of leakage current specification, please refer to Table 5 “Static characteristics”. See Section 7.3 for series resistor requirements. [2] n = 15 for PCA9701; n = 7 for PCA9702. PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 14 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT 10. Static characteristics Table 5. Static characteristics VDD = 2.5 V to 5.5 V; VSS = 0 V; Tamb = −40 °C to +125 °C; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit 2.5 3.3 5.5 V - 1.0 2.5 µA - 1.8 2.2 V - - Supply VDD supply voltage IDD supply current VPOR power-on reset VDD = 5.5 V; input = 5 V or 18 V; INT_EN = VDD voltage[1] General Purpose Inputs VIL LOW-level input voltage VIH HIGH-level input voltage [2] [3] 0.4VDD V 0.7VDD - - V - - 100 µA II input current GPI recommended maximum current; VI > 5.5 V; with series resistor Rs IIH HIGH-level input current each input; VI = VDD −1 - +1 µA ILI input leakage current VI = 17 V; 100 kΩ series resistor −1 - +1 µA Ci input capacitance VI = VSS or VDD - 2.0 5.0 pF VDD = 4.5 V; VOL = 0.4 V 6 - - mA VDD = 2.5 V; VOL = 0.4 V 3 - - mA Interrupt output IOL LOW-level output current IOH HIGH-level output current VOH = VDD −1 - +1 µA Co output capacitance - 2 5 pF - 0.3VDD V SPI and control VIL LOW-level input voltage - VIH HIGH-level input voltage 0.7VDD - 5.5 V IIH HIGH-level input current SDIN; VI = VDD = 5.5 V - 20 40 µA IOL LOW-level output current SDOUT; VOL = 0.4 V VDD = 4.5 V 5 - - mA VDD = 2.5 V 3 - - mA VDD = 4.5 V −5 −11 - mA VDD = 2.5 V −3 −7 - mA IOH HIGH-level output current SDOUT; VOH = VDD − 0.5 V Ci input capacitance VI = VSS or VDD - 2 5 pF Co output capacitance SDOUT; CS = VDD - 4 6 pF [1] VDD must be lowered to 0.2 V for at least 5 µs in order to reset device. [2] Minimum VIL is 2.0 V at VDD = 4.5 V. [3] For GPI pin voltages > 5.5 V, see Section 7.3. PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 15 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT 11. Dynamic characteristics Table 6. Dynamic characteristics VDD = 2.5 V to 5.5 V; VSS = 0 V; Tamb = −40 °C to +125 °C; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit fmax maximum input clock frequency - - 5 MHz tr rise time SDOUT; 10 % to 90 % at 5 V - tf fall time SDOUT; 90 % to 10 % at 5 V - 35 60 ns 25 50 ns tWH pulse width HIGH SCLK 50 - - ns tWL pulse width LOW SCLK 50 - - ns tSPILEAD SPI enable lead time CS falling edge to SCLK rising edge 50 - - ns tSPILAG SPI enable lag time SCLK falling edge to CS rising edge 50 - - ns tsu(SDIN) SDIN set-up time SDIN to SCLK falling edge 20 - - ns th(SDIN) SDIN hold time from SCLK falling edge 30 - - ns ten(SDOUT) SDOUT enable time from CS LOW to SDOUT low-impedance; Figure 17 - - 55 ns tdis(SDOUT) SDOUT disable time from rising edge of CS to SDOUT high-impedance; Figure 17 - - 85 ns tv(SDOUT) SDOUT valid time from rising edge of SCLK; Figure 18 - - 55 ns tsu(SCLK) SCLK set-up time SCLK falling to CS falling 50 - - ns th(SCLK) SCLK hold time SCLK rising after CS rising 50 - - ns tPOR power-on reset pulse time time before CS is active after VDD > VPOR - - 250 ns trel(int) interrupt release time after CS going LOW; Figure 19 - - 500 ns tv(INT_N) valid time on pin INT after INn changes or INT_EN goes HIGH - - 100 ns CS tsu(SCLK) tSPILEAD tWH 50 % tsu(SDIN) SCLK tSPILAG tWL th(SCLK) 50 % th(SDIN) MSB in SDIN ten(SDOUT) tv(SDOUT) tdis(SDOUT) high-impedance MSB out SDOUT trel(int) INT 002aac428 Fig 14. Timing diagram PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 16 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT 2.5 V VDD VPOR 0V CS SCLK SDOUT MSB − 1 MSB out tPOR 002aad158 Fig 15. AC waveform for tPOR timing CS INn STATE 0 STATE 1 STATE 0 INT_EN tv(INT_N) tv(INT_N) INT trel(int) trel(int) 002aad159 Fig 16. AC waveform for INT timing PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 17 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT 12. Test information VDD open VDD PULSE GENERATOR VI RL 10 kΩ VO DUT CL 50 pF RT 10 kΩ 002aac580 Fig 17. Test circuitry for enable/disable times, SDOUT (ten(SDOUT) and tdis(SDOUT)) VDD PULSE GENERATOR VI VO DUT CL 50 pF RT 002aac581 Fig 18. Test circuitry for switching times, SDOUT (tv(SDOUT)) VDD VDD PULSE GENERATOR VI RL 10 kΩ VO DUT CL 50 pF RT 002aac582 Fig 19. Test circuitry for switching times, INT RL = load resistance. CL = load capacitance includes jig and probe capacitance. RT = termination resistance should be equal to the output impedance Zo of the pulse generators. PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 18 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT 13. Package outline SO24: plastic small outline package; 24 leads; body width 7.5 mm SOT137-1 D E A X c HE y v M A Z 24 13 Q A2 A (A 3) A1 pin 1 index θ Lp L 1 12 e detail X w M bp 0 5 10 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (1) e HE L Lp Q v w y mm 2.65 0.3 0.1 2.45 2.25 0.25 0.49 0.36 0.32 0.23 15.6 15.2 7.6 7.4 1.27 10.65 10.00 1.4 1.1 0.4 1.1 1.0 0.25 0.25 0.1 0.01 0.019 0.013 0.014 0.009 0.61 0.60 0.30 0.29 0.05 0.419 0.043 0.055 0.394 0.016 inches 0.1 0.012 0.096 0.004 0.089 0.043 0.039 0.01 0.01 Z (1) 0.9 0.4 0.035 0.004 0.016 θ o 8 o 0 Note 1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included. REFERENCES OUTLINE VERSION IEC JEDEC SOT137-1 075E05 MS-013 JEITA EUROPEAN PROJECTION ISSUE DATE 99-12-27 03-02-19 Fig 20. Package outline SOT137-1 (SO24) PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 19 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT TSSOP24: plastic thin shrink small outline package; 24 leads; body width 4.4 mm D SOT355-1 E A X c HE y v M A Z 13 24 Q A2 (A 3) A1 pin 1 index A θ Lp L 1 12 bp e detail X w M 0 2.5 5 mm scale DIMENSIONS (mm are the original dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (2) e HE L Lp Q v w y Z (1) θ mm 1.1 0.15 0.05 0.95 0.80 0.25 0.30 0.19 0.2 0.1 7.9 7.7 4.5 4.3 0.65 6.6 6.2 1 0.75 0.50 0.4 0.3 0.2 0.13 0.1 0.5 0.2 8o 0o Notes 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. 2. Plastic interlead protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT355-1 REFERENCES IEC JEDEC JEITA MO-153 EUROPEAN PROJECTION ISSUE DATE 99-12-27 03-02-19 Fig 21. Package outline SOT355-1 (TSSOP24) PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 20 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT TSSOP16: plastic thin shrink small outline package; 16 leads; body width 4.4 mm SOT403-1 E D A X c y HE v M A Z 9 16 Q (A 3) A2 A A1 pin 1 index θ Lp L 1 8 e detail X w M bp 0 2.5 5 mm scale DIMENSIONS (mm are the original dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (2) e HE L Lp Q v w y Z (1) θ mm 1.1 0.15 0.05 0.95 0.80 0.25 0.30 0.19 0.2 0.1 5.1 4.9 4.5 4.3 0.65 6.6 6.2 1 0.75 0.50 0.4 0.3 0.2 0.13 0.1 0.40 0.06 8 o 0 o Notes 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. 2. Plastic interlead protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT403-1 REFERENCES IEC JEDEC JEITA MO-153 EUROPEAN PROJECTION ISSUE DATE 99-12-27 03-02-18 Fig 22. Package outline SOT403-1 (TSSOP16) PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 21 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT HWQFN24: plastic thermal enhanced very very thin quad flat package; no leads; 24 terminals; body 4 x 4 x 0.75 mm B D SOT994-1 A terminal 1 index area E A A1 c detail X e1 1/2 e ∅v ∅w b e 7 12 M M C C A B C y1 C y L 13 6 e e2 Eh 1/2 e 1 18 terminal 1 index area 24 19 X Dh 0 2.5 5 mm scale DIMENSIONS (mm are the original dimensions) UNIT A(1) max A1 b c D(1) Dh E (1) Eh e e1 e2 L v w y y1 mm 0.8 0.05 0.00 0.30 0.18 0.2 4.1 3.9 2.25 1.95 4.1 3.9 2.25 1.95 0.5 2.5 2.5 0.5 0.3 0.1 0.05 0.05 0.1 Note 1. Plastic or metal protrusions of 0.075 mm maximum per side are not included. REFERENCES OUTLINE VERSION IEC JEDEC JEITA SOT994-1 --- MO-220 --- EUROPEAN PROJECTION ISSUE DATE 07-02-07 07-03-03 Fig 23. Package outline SOT994-1 (HWQFN24) PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 22 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT 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 PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 23 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT 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 24) 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 7 and 8 Table 7. 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 8. 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 24. PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 24 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT maximum peak temperature = MSL limit, damage level temperature minimum peak temperature = minimum soldering temperature peak temperature time 001aac844 MSL: Moisture Sensitivity Level Fig 24. 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 9. Abbreviations Acronym Description ASSP Application Specific Standard Product CAN Controller Area Network CDM Charged-Device Model DUT Device Under Test ECU Electronic Control Unit ESD ElectroStatic Discharge GPI General Purpose Input HBM Human Body Model HS-CAN High-Speed Controller Area Network LIN Local Interconnect Network LSB Least Significant Bit MM Machine Model MSB Most Significant Bit PCB Printed-Circuit Board PPAP Production Part Approval Process RC Resistor-Capacitor network SBC System Basis Chip SPI Serial Peripheral Interface µC microcontroller PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 25 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT 16. Revision history Table 10. Revision history Document ID Release date Data sheet status Change notice Supersedes PCA9701_PCA9702_5 20091111 Product data sheet - PCA9701_PCA9702_4 Modifications: • Table 5 “Static characteristics”, sub-section “SPI and control”: – IOH for condition VDD = 4.5 V: Min value changed from “5 mA” to “−5 mA” – IOH for condition VDD = 4.5 V: Typ value changed from “-” to “−11 mA” – IOH for condition VDD = 2.5 V: Min value changed from “3 mA” to “−3 mA” – IOH for condition VDD = 2.5 V: Typ value changed from “-” to “−7 mA” PCA9701_PCA9702_4 20090716 Product data sheet - PCA9701_PCA9702_3 PCA9701_PCA9702_3 20081203 Product data sheet - PCA9701_PCA9702_2 PCA9701_PCA9702_2 20070829 Product data sheet - PCA9701_PCA9702_1 PCA9701_PCA9702_1 20070323 Objective data sheet - - PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 26 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT 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. 17.3 Disclaimers General — 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. 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 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. Limiting values — Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) may cause permanent damage to the device. Limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the Characteristics sections of this document is not implied. Exposure to limiting values for extended periods may affect device reliability. Terms and conditions of 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, including those pertaining to warranty, intellectual property rights infringement and limitation of liability, unless explicitly otherwise agreed to in writing by NXP Semiconductors. In case of any inconsistency or conflict between information in this document and such terms and conditions, the latter will prevail. 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. 17.4 Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. 18. Contact information For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: [email protected] PCA9701_PCA9702_5 Product data sheet © NXP B.V. 2009. All rights reserved. Rev. 05 — 11 November 2009 27 of 28 PCA9701; PCA9702 NXP Semiconductors 18 V tolerant SPI 16-bit/8-bit GPI with INT 19. Contents 1 2 3 4 5 6 6.1 6.2 7 7.1 7.1.1 7.1.2 7.1.3 7.1.4 7.1.5 7.2 7.3 7.3.1 8 8.1 8.2 8.2.1 8.2.1.1 8.2.1.2 8.2.1.3 8.2.2 9 10 11 12 13 14 14.1 14.2 14.3 14.4 15 16 17 17.1 17.2 17.3 17.4 General description . . . . . . . . . . . . . . . . . . . . . . 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pinning information . . . . . . . . . . . . . . . . . . . . . . 4 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5 Functional description . . . . . . . . . . . . . . . . . . . 6 SPI bus operation . . . . . . . . . . . . . . . . . . . . . . . 6 CS - chip select. . . . . . . . . . . . . . . . . . . . . . . . . 6 SCLK - serial clock input. . . . . . . . . . . . . . . . . . 6 SDIN - serial data input . . . . . . . . . . . . . . . . . . 6 SDOUT - serial data output . . . . . . . . . . . . . . . 6 Register access timing . . . . . . . . . . . . . . . . . . . 7 Interrupt output . . . . . . . . . . . . . . . . . . . . . . . . . 7 General Purpose Inputs . . . . . . . . . . . . . . . . . . 8 VIL, VIH and switching points. . . . . . . . . . . . . . . 9 Application design-in information . . . . . . . . . 10 General application. . . . . . . . . . . . . . . . . . . . . 10 Automotive application . . . . . . . . . . . . . . . . . . 10 SBC wake port extension with cyclic biasing . 11 UJA106x with PCA9701, standby . . . . . . . . . . 11 UJA106x with PCA9701, sleep. . . . . . . . . . . . 12 UJA107x with PCA9701, standby . . . . . . . . . . 13 Application examples including switches to battery . . . . . . . . . . . . . . . . . . . . . 13 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 14 Static characteristics. . . . . . . . . . . . . . . . . . . . 15 Dynamic characteristics . . . . . . . . . . . . . . . . . 16 Test information . . . . . . . . . . . . . . . . . . . . . . . . 18 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 19 Soldering of SMD packages . . . . . . . . . . . . . . 23 Introduction to soldering . . . . . . . . . . . . . . . . . 23 Wave and reflow soldering . . . . . . . . . . . . . . . 23 Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 23 Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 24 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 26 Legal information. . . . . . . . . . . . . . . . . . . . . . . 27 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 27 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 18 19 Contact information . . . . . . . . . . . . . . . . . . . . 27 Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 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. 2009. 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: 11 November 2009 Document identifier: PCA9701_PCA9702_5