1

PS8474

04/25/00

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Product Features

• PI74ALVC162835FD is designed for low voltage operation,

• Outputs have equivalent 26Ω series resistors

• Supports PC133 Registered DIMM

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

• Packages available:

– 56-pin 240 mil wide plastic TSSOP (A)

–56-pin173milwideplasticTVSOP(K6)

–56-pin300milwideplasticSSOP(V)

PI74ALVC162835FD

18-Bit Universal Bus Driver

with 3-State Outputs

Logic Block Diagram

Product Description

Pericom Semiconductor’s PI74ALVC series of logic circuits

are produced using the Company’s advanced 0.5 micron CMOS

technology, achieving industry leading speed.

The 18-bit PI74ALVC162835FD universal bus driver is designed

Data flow from A to Y is controlled by Output Enable (OE).

The device operates in the transparent mode when LE is HIGH. The

A data is latched if CLK is held at a high or low logic level. If LE

is LOW, the A-bus is stored in the latch/flip-flop on the low-to-high

transition of CLK. When OE is HIGH, the outputs are in the high-

impedance state.

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

minimum value of the resistor is determined by the current-sinking

capability of the driver.

TO 17 OTHER CHANNELS

CLK

LE

A1

54

28

30

OE

27

1D

C1

CLK

Y1

3