MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

1

REV 0.1

10/97

Product Preview

Low-Voltage 1.8/2.5/3.3V

16-Bit D-Type Flip-Flop

With 3.6V-Tolerant Inputs and

Outputs (3-State, Non-Inverting)

The MC74VCX16374 is an advanced performance, non–inverting

16–bit D–type flip–flop. It is designed for very high–speed, very

low–power operation in 1.8V, 2.5V or 3.3V systems. The VCX16374 is

byte controlled, with each byte functioning identically, but independently.

Each byte has separate Output Enable and Clock Pulse inputs. These

control pins can be tied together for full 16–bit operation.

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 MC74VCX16374 consists of 16 edge–triggered flip–flops with

individual D–type inputs and 3.6V–tolerant 3–state outputs. The clocks

(CPn) and Output Enables (OEn) are common to all flip–flops within the

respective byte. The flip–flops will store the state of individual D inputs

that meet the setup and hold time requirements on the LOW–to–HIGH

Clock (CP) transition. With the OE LOW, the contents of the flip–flops are

available at the outputs. When the OE is HIGH, the outputs go to the high

impedance state. The OE input level does not affect the operation of the

flip–flops.

3.9ns max for 2.3 to 2.7V

6.0ns max for 1.8V

±24mA Drive at 3.0V

±18mA Drive at 2.3V

±6mA Drive at 1.8V

Substantially Reduces System Power Requirements

This document contains information on a product under development. Motorola reserves the right to

change or discontinue this product without notice.

MC74VCX16374

LOW–VOLTAGE 1.8/2.5/3.3V

16–BIT D–TYPE FLIP–FLOP

DT SUFFIX

48–LEAD PLASTIC TSSOP PACKAGE

CASE 1201–01

VCX

PIN NAMES

Function

Output Enable Inputs

Clock Pulse Inputs

Inputs

Outputs

Pins

OEn

CPn

D0–D15

O0–O15