DM74ALS540A

DM74ALS540A Octal Inverting Buffer and Line Driver with 3-STATE Outputs

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DM74ALS540A Octal Inverting Buffer and Line Driver with 3-STATE Outputs

October 1986 Revised February 2000

DM74ALS540A Octal Inverting Buffer and Line Driver with 3-STATE Outputs
General Description
This octal buffer and line driver is designed to have the performance of the DM74ALS240A series and, at the same time, offer a pinout with inputs and outputs on opposite sides of the package. This arrangement greatly enhances printed circuit board layout. The 3-STATE control gate is a 2-input NOR such that if either G1 or G2 is HIGH, all eight outputs are in the high impedance state.

Features
s Advanced oxide-isolated, ion-implanted Schottky TTL process s Switching performance is guaranteed over full temperature and VCC supply range s Data flow-thru pinout (All inputs on opposite side from outputs) s P-N-P inputs reduce DC loading

Ordering Code:
Order Number DM74ALS540AWM DM74ALS540ASJ DM74ALS540AN Package Number Package Description M20B M20D N20A 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

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

Connection Diagram

Function Table
Inputs G1 H X L L G2 X H L L A X X L H Output Y Hi-Z Hi-Z H L

H HIGH Logic Level L LOW Logic Level X Don t Care (Either HIGH or LOW Logic Level) Hi-Z High Impedance (OFF) State

2000 Fairchild Semiconductor Corporation

DS009170

www.fairchildsemi.com