© 1999 Fairchild Semiconductor Corporation

DS500294

www.fairchildsemi.com

August 1999

Revised October 1999

74ACT18823

18-Bit D-Type Flip-Flop with 3-STATE Outputs

General Description

The ACT18823 contains eighteen non-inverting D-type flip-

flops with 3-STATE outputs and is intended for bus oriented

applications. The device is byte controlled. A buffered clock

(CP), Clear (CLR), Clock Enable (EN) and Output Enable

(OE) are common to each byte and can be shorted

together for full 18-bit operation.

Features

s Broadside pinout allows for easy board layout

s Separate control logic for each byte

s Extra data width for wider address/data paths or buses

carrying parity

s Outputs source/sink 24 mA

s TTL-compatible inputs

Ordering Code:

Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.

Logic Symbol

Pin Descriptions

Connection Diagram

FACT

™ is a trademark of Fairchild Semiconductor Corporation.

Order Number

Package Number

Package Description

74ACT18823SSC

MS56A

56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300” Wide

74ACT18823MTD

MTD56

56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide

Pin Names

Description

Output Enable Input (Active LOW)

Clear (Active LOW)

Clock Enable (Active LOW)

Clock Pulse Input

Inputs

Outputs