DM74ALS38A

DM74ALS38A Quadruple 2-Input NAND Buffer with Open-Collector Outputs

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DM74ALS38A Quadruple 2-Input NAND Buffer with Open-Collector Outputs

September 1986 Revised February 2000

DM74ALS38A Quadruple 2-Input NAND Buffer with Open-Collector Outputs
General Description
This device contains four independent gates, each of which performs the logic NAND function. The open-collector outputs require external pull-up resistors for proper logical operation. Pull-Up Resistor Equations

Features
s Switching specifications at 50 pF s Switching specifications guaranteed over full temperature and VCC range s Advanced oxide-isolated, ion-implanted Schottky TTL process s Functionally and pin for pin compatible with LS TTL counterpart s Improved AC performance over LS38 s Improved line receiving characteristics

Where:

N1 (IOH) total maximum output HIGH current for all outputs tied to pull-up resistor N2 (IIH) total maximum input HIGH current for all inputs tied to pull-up resistor N3 (IIL) total maximum input LOW current for all inputs tied to pull-up resistor

Ordering Code:
Order Number DM74ALS38AM DM74ALS38AN Package Number M14A N14A Package Description 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow 14-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
Y AB Inputs A L L H H
H HIGH Logic Level L LOW Logic Level

Output B L H L H Y H H H L

2000 Fairchild Semiconductor Corporation

DS006193

www.fairchildsemi.com