March 2008

© 2004 Fairchild Semiconductor Corporation

www.fairchildsemi.com

FSA1256(A) / FSA1257(A) / FSA1258(A) Rev. 1.0.5

FSA1256(A) / FSA1257(A) / FSA1258(A)

Features

Maximum 1.1

supply

0.4

Space saving Pb-Free MicroPak™ packaging

FSA1256, FSA1257, FSA1258: 1.65V to 5.5V

FSA1256A, FSA1257A, FSA1258A: 2.7V to 5.5V

Fast turn-on and turn-off time

FSA1258, FSA1258A feature break-before-make

enable circuitry

Over-voltage tolerant TTL compatible control input

Applications

Cell Phone, PDA, Digital Camera, and Notebook

LCD Monitor, TV, and Set-Top Box

Description

The FSA1256, FSA1256A, FSA1257, FSA1257A,

FSA1258, and FSA1258A are high performance dual

Single Pole/Single Throw (SPST) analog switches. All

FSA1257A, and FSA1258A operation range is 2.7V to

5.5V. These devices are fabricated with sub-micron

CMOS technology to achieve fast switching speeds and

are designed for break-before-make operation. The

select input is TTL level compatible. The FSA1256 and

FSA1256A feature two Normally Open (NO) switches.

The FSA1257 and FSA1257A feature two Normally

Closed (NC) switches. The FSA1258 and FSA1258A

have one NO switch and one NC switch.

IMPORTANT NOTE:

For additional performance information, please contact

Ordering Information

Part Number

Top Mark

Package Description

Packing Method

FSA1256L8X

EB

8-Lead, MicroPak™, 1.6mm Wide

5000 Units Tape and Reel

FSA1256AL8X

FN

8-Lead, MicroPak™, 1.6mm Wide

5000 Units Tape and Reel

FSA1257L8X

EC

8-Lead, MicroPak™, 1.6mm Wide

5000 Units Tape and Reel

FSA1257AL8X

FP

8-Lead, MicroPak™, 1.6mm Wide

5000 Units Tape and Reel

FSA1258L8X

ED

8-Lead, MicroPak™, 1.6mm Wide

5000 Units Tape and Reel

FSA1258AL8X

FS

8-Lead, MicroPak™, 1.6mm Wide

5000 Units Tape and Reel

All packages are lead free per JEDEC: J-STD-020B standard.

MicroPak™ is a trademark of Fairchild Semiconductor Corporation.