PI74LVCC3245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs Product Features Product Description Pericom Semiconductor’s PI74LVC series of logic circuits are produced using the Company’s advanced submicron CMOS technology, achieving industry leading speed. • 2.7V to 3.6V on A-port and 3V to 5.5V on B-port • Latch-up performance exceeds 200mA Per JESD78 • ESD protection exceeds JESD22 2000V Human-Body Model (A114-B) 200V Machine Model (A115-A) • Industrial Temperature: –40°C to +85°C • Packages (Pb-free available): - 24-pin 173-mil wide plastic TSSOP (L) (Pb-free & Green available) - 24-pin 150-mil wide plastic QSOP (Q) - 24-pin 300-mil wide plastic SOIC (S) The PI74LVCC3245A is a non-inverting 8-bit Bidirectional Transceiver that uses two seperate power supply rails. A-port (VCCA) is set to operate at 3.3V and B-port (VCCB) is set to operate from 3.3V to 5V. This allows for translation from a 3.3V to a 5V environment and vice-versa. This tranceiver is designed for asynchronous two-way communication between data buses. The direction control input pin (DIR) determines the dataflow from the A bus to the B bus or from the B bus to the A bus. The output enable (OE) input, when HIGH, disables both A and B ports by placing them in HIGH Z condition. Product Pin Configuration Logic Block Diagram DIR 2 (3.3V) VCCA 1 24 VCCB (3.3V to 5V) DIR 2 23 NC A1 3 22 OE A2 4 21 B1 20 B2 A3 5 20 B2 A4 6 19 B3 19 A5 7 18 B4 A6 8 17 B5 22 A1 3 OE 21 B1 A2 4 A3 5 A4 6 A5 7 A6 8 A7 9 B3 18 B4 A7 9 16 B6 17 B5 A8 10 15 B7 GND 11 14 B8 16 B6 GND 12 13 GND 15 B7 A8 10 Product Pin Description 14 B8 Pin Name Description OE 3-State Output Enable Inputs (Active LOW) Outputs DIR Direction Control Input Ax Side A Inputs or 3-State Outputs Bx Side B Inputs or 3-State Outputs NC NO Internal Connect GND Ground VCCA,VCCB Power Truth Table(1) Inputs OE DIR L L Bus B Data to Bus A L H Bus A Data to Bus B H X Z (Isolation) Note: 1. H = High Signal Level X = Don’t Care or Irrelevant L = Low Signal Level Z = High Impedance 1 PS8702A 09/10/03 PI74LVCC3245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Supply voltage range, VCCA and VCCB ............................ –0.5V to +7V Input voltage range, VI(2) : I/O ports (A-port) .... –0.5V to VCCA +0.5V I/O ports (B-port) ........... –0.5V to VCCB+0.5V Control Pins ................. –0.5V to VCCA +0.5V Input clamp current, IIK (VI <0)................................................–50mA Output clamp current, IOK (VO <0)...........................................–50mA Continous Output Current IO ..................................................±50mA Continous Current through each VCC or GND pin .....................±100mA Package thermal impedance, θJA(3): package L...................... 84°C/W package Q...................... 98°C/W package S ...................... 79°C/W Storage Temperature range, Tstg ................................–65°C to 150°C Notes: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 2. This value is limited to 7V maximum. 3. The package thermal impedance is calculated in accordance with JESD 51. 2 PS8702A 09/10/03 PI74LVCC3245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs Recommended Operating Conditions(4) Parameter Description VCCA VCCB VIHA VIHB VILA VILB VIH VIL Min. Nom. Max. Supply Voltage 2.7 3.3 3.6 Supply Voltage 3 5 5.5 High-Level Input Voltage High-Level Input Voltage Low-Level Input Voltage Low-Level Input Voltage VCCA VOB ≤ 0.1V or VOB ≥ VCCB –0.1V VOA ≤ 0.1V or VOA ≥ VCCA –0.1V VOB ≤ 0.1V or VOB ≥ VCCB –0.1V VOA ≤ 0.1V or VOA ≥ VCCA –0.1V VCCB 2.7V 3V 2 3.0V 3.6V 2 3.6V 5.5V 2 2.7V 3V 2 3.0V 3.6V 2 3.6V 5.5V 3.85 2.7V 3V 0.8 3.0V 3.6V 0.8 3.6V 5.5V 0.8 2.7V 3V 0.8 3.0V 3.6V 0.8 3.6V 5.5V 1.65 High-Level Input Voltage (Control Pins) VOA ≤ 0.1V or VOA ≥ VCCA –0.1V, or VOB ≤ 0.1V or VOB ≥ VCCB –0.1V 2.7V 3V 2 3.0V 3.6V 2 3.6V 5.5V 2 Low-Level Input Voltage (Control Pins) VOA ≤ 0.1V or VOA ≥ VCCA –0.1V, or VOB ≤ 0.1V or VOB ≥ VCCB –0.1V 2.7V 3V 0.8 3.0V 3.6V 0.8 3.6V 5.5V 0.8 VIA Input Voltage 0 VCCA VIB Input Voltage 0 VCCB VOA Output Voltage 0 VCCA VOB Output Voltage 0 VCCB IOHA High-level output Current IOHB High-level output Current IOLA Low-level output Current IOLB Low-level output Current ∆t/∆v Input transition Rise or Fall Rate TA Operating Free-Air Temperature 2.7V 3V –12 3.3V 3V –24 2.7V 3.3V –12 3.3V 3V –24 2.7V 3V 12 3.3V 3V 24 2.7V 3.3V 12 3.3V 3V 24 –40 Units V mA 10 ns/v 85 °C Note: 4. All unused inputs of the device must be held at the associated VCC or GND to ensure proper device operation. 3 PS8702A 09/10/03 PI74LVCC3245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C) Parameters Description VOHA Minimum High Level Output Voltage (Port A) Test Conditions VCCA VCCB IOH = –100µA 3V 3V 2.9 3 2.7V 3V 2.2 2.5 3V 3V 2.4 2.8 3V 3V 2.2 2.6 2.7V 4.5V 2 2.4 IOH = –100µA 3V 3V 2.9 3 IOH = –12mA 2.7V 3V 2.4 2.8 3V 3V 2.2 2.6 2.7V 4.5V 3.2 4.2 IOL = 100µA 3V 3V IOL = 12mA 2.7V 3V 0.1 0.5 3V 3V 0.2 0.5 2.7V 4.5V 0.2 0.5 3V 3V 2.7V 3V 0.1 0.5 3V 3V 0.2 0.5 4.5V 0.2 0.5 IOH = –12mA IOH = –24mA VOHB VOLA Minimum High Level Output Voltage (Port B) Maximum Low Level Output Voltage (Port A) IOH = –24mA IOL = 24mA IOL = 100µA VOLB Maximum Low Level Output Voltage (Port B) IOL = 12mA IOL = 24mA 3.6V 3.6V ±5 3.6V Open 10 B to A, B-Port = VCCB or GND, IO (A port) = 0 3.6V 3.6V 10 5.5V 10 A to B, A port = VCCA or GND, IO(B port) = 0 3.6V 3.6V 10 5.5V 10 Maximum 3-State Output Leakage Current (A or B ports) VI = VIL or VIH, OE = VCCA VO = VCCA/B or GND A port = VCCA or GND, IO = 0 Quiescent VCCB Supply Current One input VI = VCCA –0.6V, other inputs = VCCA or GND, OE = GND and DIR = VCCA 3.6V 3.6V 50 ICC per input (OE) VI = VCCA –0.6V, other inputs =VCCA or GND, DIR = VCCA 3.6V 3.6V 50 ICC per input (DIR) VI = VCCA –0.6V, other inputs = VCCA or GND, OE = GND 3.6V 3.6V 50 ICC per input (B Port) One Input VI = VCCB –2.1V, other inputs = VCCB or GND, OE = GND and DIR = GND 3.6V 5.5V ICC per input (A port) ICC(6) 0.1 ±1 IOZ(5) ICCB 0.1 5.5V VI = VCCA or GND ICCA V ±1 Maximum Input Leakage Current (Control Inputs) Quiescent VCCA Supply Current Max. Units 3.6V II 3.6V Min. Typ. 0.7 1.5 µA µA mA Notes: 5. For I/O ports, the parameter IOZ includes the input leakage current. 6. This is the increase in supply current for each input that is at one of the specified voltage levels, rather than 0V or the associated VCC. 4 PS8702A 09/10/03 PI74LVCC3245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs Capacitance (TA = 25°C) Parameters Description Test Conditions Typ. CIN Control Input Capacitance VI = VCCA or GND, VCCA = Open, VCCB =Open 2.6 CI/O Input/Output Capacitance (A or B port) VI/O = VCCA/B or GND, VCCA = 3.3V, VCCB = 5V 9 CPD Power Dissipation Capacitance (7) Outputs Enabled VCCA = 3.3V, VCCB = 5V CL = 0pF, f = 10MHz Outputs Disabled Units pF 22 2.4 Notes: 7. CPD is defined as the value of the internal equivalent capacitance which is derived from dynamic operating current consumption (ICCD) at no output loading and operating at 50% duty cycle, CPD is related to ICCD dynamic operating current by the expression: ICCD = (CPD)(VCC)(fIN) +(ICC static) AC Electrical Characteristics (Over Operating Range, TA = –40°C to +85°C) Parameters tPHL tPLH tPHL tPLH tPZL tPZH tPZL tPZH tPLZ tPHZ tPLZ tPHZ tSK(O) From (Input) A To (Output) B B A OE A OE B OE A OE B VCCA = 2.7V to 3.6V, VCCB = 5V ±0.5V VCCA = 2.7V to 3.6V, VCCB = 3.3V ±0.3V CL = 50pF, RL = 500Ω CL = 50pF, RL = 500Ω Min. Max. Min. Max. 1 5.6 1 7.1 1 5.3 1 7.2 1 5.0 1 6.4 1 5.2 1 6.6 1 8.0 1 9.0 1 7.8 1 8.8 1 8.1 1 9.1 1 8.4 1 8.8 1 7.1 1 7.3 1 7.3 1 7.5 1 7 1 7.5 1 7 1 7.6 Output-to-Output Skew(8) 1.5 Units ns 1.5 Note: 8. Skew between any two outputs of the same device, switching in the same direction. Parameter guaranteed by design. 5 PS8702A 09/10/03 PI74LVCC3245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs Power- Up Considerations To avoid excessive supply current, bus contention or oscillation during power-up, the following guidelines should be followed: 1. Connect ground first before any supply voltage is applied. 2. Power up VCCA, which is the control side of the device. 3. Ramp OE ahead of or with VCCA to help prevent bus contention 4. Ramp DIR with VCCA if DIR high is needed (A bus to B bus). Otherwise keep DIR Low. PARAMETER MEASUREMENT INFORMATION FOR A TO B PORT VCCA =2.7V TO 3.6V and VCCB = 5V ± 0.5V 500Ω 500Ω From Output Under Test CL = 50 50pF S1 2xVCCB Open GND 500Ω 500Ω (See Note A) Load Circuit 1.5V Open 2 x VCCB GND 2.7V tPHL 50% VCCB 1.5V VOH 50% VCCB VOL Output Waveform 2 S1 at GND (see Note B) Voltage Waveforms Propagation Delay Times 1.5V 0V tPLZ Output Waveform 1 S1 at 2 x VCCB 50% VCCB (see Note B) t PZH 0V B-Port Output tPLH/tPHL tPLZ/tPZL tPHZ/tPZH tPZL 1.5V tPLH S1 Output Control 2.7V Input Test VCCB VOL +0.3V VOL tPHZ 50% VCCB VOH –0.3V VOH 0V Voltage Waveforms Enable and Disable Times Figure 1. Load Circuit and Voltage Waveforms Notes: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. All input impulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50Ω, tR ≤ 2.5ns, tF ≤ 2.5ns. D. The outputs are measured one at a time with one transition per measurement. 6 PS8702A 09/10/03 PI74LVCC3245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs PARAMETER MEASUREMENT INFORMATION FOR B TO A PORT VCCA =2.7V TO 3.6V and VCCB = 5V ± 0.5V 6V S1 500Ω 500Ω From Output Under Test CL = 50 50pF Open GND 500Ω 500Ω (See Note A) Load Circuit B Port Input A-Port Output 50% VCCB tPLH S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open 6V GND 2.7V Output Control 50% VCCB tPHL 1.5V Test VCCB 0V VOL Voltage Waveforms Propagation Delay Times 1.5V 0V tPZL VOH 1.5V 1.5V tPLZ Output Waveform 1 S1 at 6V (see Note B) t PZH 1.5V Output Waveform 2 S1 at GND (see Note B) 1.5V 3V VOL +0.3V VOL tPHZ VOH –0.3V VOH 0V Voltage Waveforms Enable and Disable Times Figure 2. Load Circuit and Voltage Waveforms Notes: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. All input impulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50Ω, tR ≤ 2.5ns, tF ≤ 2.5ns. D. The outputs are measured one at a time with one transition per measurement. 7 PS8702A 09/10/03 PI74LVCC3245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs PARAMETER MEASUREMENT INFORMATION FOR A TO B AND B TO A VCCA =2.7V TO 3.6V and VCCB = 3.3V ± 0.3V 6V 500Ω From Output Under Test CL = 50pF S1 Open GND 500Ω (See Note A) Load Circuit 1.5V 0V Output tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open 6V GND 2.7V tPHL VOH 1.5V 1.5V 1.5V VOL Voltage Waveforms Propagation Delay Times 1.5V 0V tPZL 1.5V tPLH S1 Output Control 2.7V Input Test tPLZ Output Waveform 1 S1 at 6V (see Note B) t PZH 1.5V Output Waveform 2 S1 at GND (see Note B) 1.5V 3V VOL +0.3V VOL tPHZ VOH –0.3V VOH 0V Voltage Waveforms Enable and Disable Times Figure 2. Load Circuit and Voltage Waveforms Notes: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. All input impulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50Ω, tR ≤ 2.5ns, tF ≤ 2.5ns. D. The outputs are measured one at a time with one transition per measurement. 8 PS8702A 09/10/03 PI74LVCC3245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs Packaging Mechanical: 24-pin TSSOP (L) 24 .169 .177 4.3 4.5 0.09 0.20 .004 .008 1 .303 .311 7.7 7.9 0.45 0.75 .047 1.20 Max .007 .012 0.19 0.30 .0256 BSC 0.65 .002 .006 .018 .030 .252 BSC 6.4 SEATING PLANE 0.05 0.15 X.XX DENOTES CONTROLLING X.XX DIMENSIONS IN MILLIMETERS Packaging Mechanical: 24-pin QSOP (Q) 24 .008 0.20 MIN. .150 .157 3.81 3.99 Guage Plane .010 0.254 .016 .035 0.41 0.89 Detail A 1 .337 .344 .053 .069 .015 x 45˚ 0.38 1.35 1.75 Detail A SEATING PLANE .025 typical 0.635 0˚-6˚ .041 1.04 REF 8.56 8.74 .033 0.84 .008 .013 0.20 0.33 .008 0.203 .012 0.305 .004 0.101 .010 0.254 .007 .010 .016 .050 0.178 0.254 0.406 1.27 .228 .244 5.79 6.20 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS 9 PS8702A 09/10/03 PI74LVCC3245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs Packaging Mechanical: 24-pin SOIC (S) 24 .2914 .2992 7.40 7.60 .010 .029 0.254 x 45˚ 0.737 1 .0926 2.35 .1043 2.65 SEATING PLANE 1.27 0.23 0.32 0.41 .016 1.27 .050 .021 0.533 .031 0.787 .050 BSC .0091 .0125 0-8˚ .5985 15.20 .6141 15.60 .013 .020 0.33 0.51 .0040 .0118 .394 .419 10.00 10.65 0.10 0.30 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS Ordering Information Ordering Code Package Code Package Desription PI74LVCC3245AL L 24-pin, 173-mil wide plastic TSSOP PI74LVCC3245ALE L Pb-free, 24-pin, 173-mil wide plastic TSSOP PI74LVCC3245AQ Q 24-pin, 150-mil wide plastic QSOP PI74LVCC3245AS S 24-pin, 300-mil wide plastic SOIC Notes: 1. Thermal characteristics can be found on the company web site at http://www.pericom.com/packaging/ Pericom Semiconductor Corporation • 1-800-435-2336 • http://www.pericom.com 10 PS8702A 09/10/03