MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

1

REV 0

10/97

Advance Information

Low-Voltage 1.8/2.5/3.3V

16-Bit Buffer

With 26Ω Series Resistors

3.6V-Tolerant Inputs and Outputs

(3-State, Non-Inverting)

The MC74VCX162244 is an advanced performance, non–inverting

16–bit buffer. It is designed for very high–speed, very low–power

operation in 1.8V, 2.5V or 3.3V systems.

When operating at 2.5V (or 1.8V) the part is designed to tolerate

voltages it may encounter on either inputs or outputs when interfacing to

3.3V busses. It is guaranteed to be over–voltage tolerant to 3.6V.

The MC74VCX162244 is nibble controlled with each nibble functioning

identically, but independently. It is designed with 26

Ω series resistors in

each of the outputs to reduce noise. The control pins may be tied together

to obtain full 16–bit operation. The 3–state outputs are controlled by an

Output Enable (OEn) input for each nibble. When OEn is LOW, the

outputs are on. When OEn is HIGH, the outputs are in the high

impedance state.

3.8ns max for 2.3 to 2.7V

5.7ns max for 1.8V

±12mA Drive at 3.0V

±8mA Drive at 2.3V

±4mA Drive at 1.8V

Substantially Reduces System Power Requirements

This document contains information on a new product. Specifications and information herein are subject to

change without notice.

MC74VCX162244

LOW–VOLTAGE 1.8/2.5/3.3V

16–BIT BUFFER

WITH 26

Ω SERIES RESISTORS

DT SUFFIX

48–LEAD PLASTIC TSSOP PACKAGE

CASE 1201–01

VCX

PIN NAMES

Function

Output Enable Inputs

Inputs

Outputs

Pins

OEn

D0–D15

O0–O15