PI74AVC164245 16-Bit 1.2-2.5V to 3.3V Level Shifting Transceiver with 3-State Outputs Features Description Pericom Semiconductors PI74AVC164245, a 16-bit (dual-octal) PI74AVC164245 is designed for low voltage operation: noninverting bus transceiver, contains two separate supply rails: 1.2V - 2.5V to 3.3V B port (V ), set at 3.3V, and A port (V ), set to operate CCB CCA Industrial operation at 40C to +85C at 1.2-2.5V. This arrangement permits translation from a 1.2-2.5V Packaging (Pb-free & Green): to 3.3V environment and vice versa. 48-pin plastic 300-mil SSOP (V) The PI74AVC164245 is designed for asynchronous communication 48-pin plastic 240-mil TSSOP (A) between data buses. 48-pin plastic 173-mil TVSOP (K) To ensure the high impedance state during power up or power down, the output-enable (OE) input should be tied to V through Truth Table (each 8-bit section) CCB a pullup resistor: the minimum value of the resistor is determined by the current-sinking capability of the driver. Inputs Operation OE DIR L L B data to A bus L H A data to B bus H X Isolation Block Diagram Pin Configuration (28-Pin TQFN) 1 48 (3.3V LVTTL) 1DIR 1OE (3.3V LVTTL) 1 1DIR 1B1 2 47 1A1 1B2 3 46 1A2 48 1OE 4 45 GND GND 5 44 1B3 1A3 47 6 43 1B4 1A4 1A1 (3.3V) V 7 42 V (1.2V-2.5V) CCB CCA 1B5 8 41 1A5 2 1B1 9 40 1B6 1A6 GND 10 39 GND 11 38 To Seven Other Channels 1B7 1A7 12 37 1B8 1A8 13 36 2A1 2B1 24 2DIR 14 35 2B2 2A2 34 25 GND 15 GND 2OE 2B3 16 33 2A3 17 32 2B4 2A4 36 2A1 (3.3V) V 18 31 V (1.2V-2.5V) CCB CCA 2B5 19 30 2A5 13 2B6 20 29 2A6 2B1 21 28 GND GND 22 27 2B7 2A7 To Seven Other Channels 23 2B8 26 2A8 (3.3V LVTTL) 2DIR 24 25 2OE (3.3V LVTTL) www.pericom.com P-0.1 07/18/12 12-0208 1PI74AVC164245 16-Bit 1.2-2.5V to 3.3V Level Shifting Transceiver with 3-State Outputs Maximum Ratings (Absolute maximum ratings over operating free-air temperature range from V at 3.3V & V at 1.5 - 2.5V, unless otherwise CCB CCA Note: 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 af fect reliability. Supply Voltage Range V .......................0.5V to 3.8V Continuous output current, I ........................................ 50mA CCA O V .......................0.5V to 4.6V CCB Continuous current through each V or GND ........... 100mA CC (3) Package thermal impedance, 0 : A package ............. 89C/W JA (1) Input Voltage Range, V Except I/O ports .0.5V to 4.6V I K package ............................ 58C/W (2) I/O port A .. 0.5V to V +0.5V CCA V package ............................ 94C/W (1) I/O port B .. 0.5V to V +0.5V CCB Storage temperature range, T ...................... 65C to 150C STG Input Clamp Current I (V <0) ................................50mA IK 1 Ouput Clamp Current I (V <0) .............................50mA OK O (4) Recommended Operating Conditions for V at 3.3V CCB Min. Max. Units V Supply voltage 3.0 3.6 CCB V High-level voltage 2 IH V Low-level voltage 0.8 V IL V Input Voltage 0 V IB CCB V Output Voltage 0 V OB CCB I High-level output current 12 OH mA I Low-level output current 12 OL Dt/Dv Input transition rise or fall rate 10 ns/V T Operating free-air temperature 40 85 C A www.pericom.com P-0.1 07/18/12 12-0208 2