DM74ALS21A Dual 4-Input AND Gate
September 1986 Revised February 2000
DM74ALS21A Dual 4-Input AND Gate
General Descrip...
DM74ALS21A Dual 4-Input AND Gate
September 1986 Revised February 2000
DM74ALS21A Dual 4-Input AND Gate
General Description
This device contains two independent gates, each of which performs the logic AND function.
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
Schottky and low power
Schottky TTL counterpart s Improved AC performance over
Schottky and low power
Schottky counterparts
Ordering Code:
Order Number DM74ALS21AM DM74ALS21AN 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 = ABCD Inputs A X X X L H B X X L X H C X L X X H D L X X X H Output Y L L L L H
H = HIGH Logic Level L = LOW Logic Level X = Either LOW or HIGH Logic Level
© 2000 Fairchild Semiconductor Corporation
DS006185
www.fairchildsemi.com
DM74ALS21A
Absolute Maximum Ratings(Note 1)
Supply Voltage Input Voltage Operating Free Air Temperature Range Storage Temperature Range Typical θJA N Package M Package 86.5°C/W 116.0°C/W 7V 7V 0°C to +70°C −65°C to +150°C
Note 1: The “Absolute Maximum Ratings” are those values beyond which the safety of ...