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PI74VCX16245

2.5V 16-Bit Bidirectional Transceiver with 3-State Outputs

Pericom Semiconductor Corporation 

PI74VCX16245

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2.5V 16-Bit Bidirectional Transceiver

with 3-State Outputs

Features

• The PI74VCX family is designed for low voltage operation

VDD = 1.8V to 3.6V

• 3.6V I/O Tolerant Inputs and Outputs

• Supports Live Insertion

• Balanced output drive, ±24mA

• Uses patented Noise Reduction Circuitry

• Typical VOLP (Output Ground Bounce)

< 0.6V at VDD = 2.5V, TA = 25ºC

• Typical VOHV (Output VOH Undershoot)

< –0.6V at VDD = 2.5V, TA = 25ºC

• Power-Off High Impedance inputs and outputs

• Industrial operation at –40°C to +85°C

• Packaging (Pb-free & Green available):

– 48-pin 240 mil. wide plastic TSSOP (A)

Description

Pericom Semiconductor’s PI74VCX16245 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 HIGH Z condition.

To ensure the high-impedance state during power up or power

down, OE should be tied to VDD through a pull-up resistor; the

minimum value of the resistor is determined by the current sinking

ability of the driver.

The PI74VCX family is I/O Tolerant, allowing it to operate in

mixed 1.8V/3.6V systems.

Block Diagram

1DIR

1A0

1A1

1A2

1A3

1A4

1A5

1A6

1A7

1OE

1B0

1B1

1B2

1B3

1B4

1B5

1B6

1B7

2DIR

2A0

2A1

2A3

2 A4

2A5

2A6

2A7

2A8

2OE

2B0

2B1

2B2

2B3

2B4

2B5

2B6

2B7

06-0202

1

PS8325C 10/27/06

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