PI74ALVTC16245VE

PI74ALVTC16245 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 16-Bit BiDirectional Transceiver with 3-State Outputs Features Description • PI74ALVTC family is designed for low voltage operation, VDD = 1.8V to 3.6V Pericom Semiconductor’s PI74ALVTC16245 is a 16-bit bidirectional transceiver designed for asynchronous two-way communication between data buses. The direction control input pin (xDIR) determines the direction of data flow through the bidirectional transceiver. The Direction and Output Enable controls are designed to operate this device as either two independent 8-bit transceivers or one 16-bit transceiver. The output enable (OE) input, when HIGH, disables both A and B ports by placing them in Hi-Z condition. • Supports Live Insertion • 3.6V I/O Tolerant Inputs and Outputs • Bus Hold • High Drive, -32/64mA @ 3.3V • Uses patented noise reduction circuitry To ensure the high-impedance state during power up or power down, OE should be tied to Vdd through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. • Power-off high impedance inputs and outputs • Industrial operation at –40°C to +85°C • Packaging (Pb-free & Green available): The family offers both I/O Tolerant, which allows it to operate in mixed 1.8/3.6V systems, and “Bus Hold,” which retains the data input’s last state whenever the data input goes to high-impedance, preventing “floating” inputs and eliminating the need for pullup/ down resistors. – 48-pin 240- mil wide plastic TSSOP (A) – 48-pin 173-mil wide plastic TVSOP (K) – 48-pin 300-mil wide plastic SSOP (V) Block Diagram 1DIR 2DIR 1OE 2OE 1A0 2A0 1B0 2B0 1A1 2A1 1B1 2B1 1A2 2A3 1B2 2B2 1A3 2 A4 1B3 2B3 1A4 2A5 1B4 2B4 1A5 2A6 1B5 2B5 1A6 2A7 1B6 2B6 1A7 2A8 1B7 2B7 1 PS8354B 09/22/04 PI74ALVTC16245 16-Bit BiDirectional Transceiver with 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Truth Table(1) Product Pin Description Pin Name De s cription Inputs (1) xOE 3- State Output Enable Inputs (Active LOW) xDIR xOE xDIR Direction Control Input L L Bus B Data to Bus A XAX Side A Inputs or 3- State Inputs L H Bus A Data to Bus B XBX Side B Inputs or 3- State Outputs H X High Z State GND Ground VCC Power Notes: 1. H = High Signal Level L = Low Signal Level X = Don’t Care or Irrelevant Z = High Impedance Product Pin Configuration 1DIR 1 48 1OE 1B0 2 47 1A0 1B1 3 46 1A1 GND 4 45 GND 1B2 5 44 1A2 1B3 6 43 1A3 VCC 7 42 VCC 1B4 8 41 1A4 1B5 9 40 1A5 39 GND GND 10 1B6 11 38 1A6 1B7 12 37 1A7 2B0 13 36 2A0 2B1 14 35 2A1 GND 15 34 GND 2B2 16 33 2A2 2B3 17 32 2A3 VCC 18 31 VCC 2B4 19 30 2A4 48-Pin A, K, V Outputs (1) 2B5 20 29 2A5 GND 21 28 GND 2B6 22 27 2A6 2B7 23 26 2A7 2DIR 24 25 2OE 2 PS8354B 09/22/04 PI74ALVTC16245 16-Bit BiDirectional Transceiver with 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Supply Voltage Range, VDD .......................................... –0.5V to 4.6V Input Voltage Range, VI ................................................. -0.5V to 4.6V Output Voltage Range, VO (3-Stated) ............................ -0.5V to 4.6V Output Voltage Range, VO(1) (Active) ................. –0.5V to VDD +0.5V DC Input Diode Current (IIK) VI