© 1999 Fairchild Semiconductor Corporation

DS500039

www.fairchildsemi.com

July 1997

Revised December 1999

FST16213

24-Bit Bus Exchange Switch

General Description

The Fairchild Switch FST16213 provides 24-bits of high-

speed CMOS TTL-compatible bus switching or exchang-

ing. 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 operates as a 24-bit bus switch or a 12-bit bus

exchanger, which allows data exchange between the four

signal ports via the data-select terminals.

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

FST16213MEA

MS56A

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

FST16213MTD

MTD56

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