This device contains two independent gates each of which performs the logic AND function Features Y Alternate Military Aerospace device (54LS21) is available Contact a National Semiconductor Sales Office Distributor for specifications Connection Diagram Dual-In-Line Package TL F 6356 – 1 Order Number 54LS21DMQB 54LS21FMQB 54LS21LMQB DM54LS21J DM54LS21W .
Y
Alternate Military Aerospace device (54LS21) is available Contact a National Semiconductor Sales Office Distributor for specifications
Connection Diagram
Dual-In-Line Package
TL F 6356
– 1
Order Number 54LS21DMQB 54LS21FMQB 54LS21LMQB DM54LS21J DM54LS21W DM74LS21M or DM74LS21N See NS Package Number E20A J14A M14A N14A or W14B
Function Table
Y e 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 e High Logic Level L e Low Logic Level X e Either Low or High Logic Level
C1995 National Semiconductor Corporation
TL F 6356
RRD-B30M105 Printed in U S A
Absolu.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | DM54LS20 |
National Semiconductor |
Dual 4-Input NAND Gates | |
2 | DM54LS240 |
National Semiconductor |
Octal TRI-STATE Buffers/Line Drivers/Line Receivers | |
3 | DM54LS241 |
National Semiconductor |
Octal TRI-STATE Buffers/Line Drivers/Line Receivers | |
4 | DM54LS245 |
National Semiconductor |
TRI-STATE Octal Bus Transceiver | |
5 | DM54LS251 |
National Semiconductor |
TRI-STATE Data Selectors/Multiplexers | |
6 | DM54LS257B |
National Semiconductor |
TRI-STATE Quad 2-Data Selectors/Multiplexers | |
7 | DM54LS258B |
National Semiconductor |
TRI-STATE Quad 2-Data Selectors/Multiplexers | |
8 | DM54LS259 |
National Semiconductor |
8-Bit Addressable Latches | |
9 | DM54LS260 |
National Semiconductor |
Dual 5-Input NOR Gate | |
10 | DM54LS273 |
National Semiconductor |
8-Bit Register with Clear | |
11 | DM54LS279 |
National Semiconductor |
Quad S-R Latches | |
12 | DM54LS283 |
National Semiconductor |
4-Bit Binary Adders with Fast Carry |