© 2000 Fairchild Semiconductor Corporation

DS500055

www.fairchildsemi.com

September 1997

Revised November 2000

FST16233

16-Bit to 32-Bit Multiplexer/Demultiplexer Bus Switch

General Description

The Fairchild Switch FST16233 is a 16-bit to 32-bit high-

speed CMOS TTL-compatible multiplexer/demultiplexer

bus switch. The low on resistance of the switch allows

inputs to be connected to outputs without adding propaga-

tion delay or generating additional ground bounce noise.

The device can be used in applications where two buses

need to be addressed simultaneously. The FST16233 can

be used as two 8-bit to 16-bit multiplexers or as one 16-bit

to 32-bit multiplexer.

provide switch enable and multiplexer select control.

The FST16233 is designed to prevent through-current

when switching buses.

Features

s 4

Ω switch connection between two ports.

s Minimal propagation delay through the switch.

s Zero bounce in flow-through mode.

s Control inputs compatible with TTL level.

Ordering Code:

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

Logic Diagram

Order Number

Package Number

Package Description

FST16233MEA

MS56A

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

FST16233MTD

MTD56

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