Preliminary

© 2001 Fairchild Semiconductor Corporation

DS500693

www.fairchildsemi.com

November 2001

Revised November 2001

FSTD16244

16-Bit Bus Switch with Level Shifting (Preliminary)

General Description

The Fairchild Switch FSTD16244 provides 16-bits of high-

speed CMOS TTL-compatible bus switching. The low On

Resistance of the switch allows inputs to be connected to

outputs without adding propagation delay or generating

integrated into the circuit to allow for level shifting between

5V inputs and 3.3V outputs.

The device is organized as a 16-bit switch. There are four

4-bit switches with separate output enable inputs. When

OE is LOW, the switch in ON and Port A is connected to

Port B. When OE is HIGH, the switch OFF and a high

impedance state exists between the A and B Ports.

Features

I 4

Ω switch connection between two ports.

I Minimal propagation delay through the switch.

I Zero bounce in flow-through mode.

I Control inputs compatible with TTL level.

I TruTranslation voltage translation from 5.0V inputs to

3.3V outputs

Ordering Code:

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

TruTranslation

 is trademark of Fairchild Semiconductor Corporation.

Order Number

Package Number

Package Description

FSTD16244MTD

MTD48

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