© 1999 Fairchild Semiconductor Corporation

DS500054

www.fairchildsemi.com

July 1997

Revised December 1999

FST16232

Synchronous 16-Bit to 32-Bit

Multiplexer/Demultiplexer Bus Switch

General Description

The Fairchild Switch FST16232 is a 16-bit to 32-bit high-

speed CMOS TTL-compatible synchronous multiplexer/

demultiplexer bus switch. The low on resistance of the

switch allows inputs to be connected to outputs without

adding propagation delay or generating additional ground

bounce noise.

The device allows two separate datapaths to be multi-

plexed onto, or demultiplexed from, a single path. Two con-

the rising edge of CLK when CLKEN is LOW.

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

FST16232MEA

MS56A

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

FST16232MTD

MTD56

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