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54LS190 |
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| Part Number | 54LS190 |
| Manufacturer | National Semiconductor |
| Description | These circuits are synchronous reversible up down counters The LS191 is a 4-bit binary counter and the LS190 is a BCD counter Synchronous operation is provided by having all flip-flops clocked simulta... |
| Features |
Y Y Y Y Y Y Y Y Y Y
Counts 8-4-2-1 BCD or binary Single down up count control line Count enable control input Ripple clock output for cascading Asynchronously presettable with load control Parallel outputs Cascadable for n-bit applications Average propagation delay 20 ns Typical clock frequency 25 MHz Typical power dissipation 100 mW
Connection Diagram
Dual-In-Line-Package
TL F 6405-1
Order Number DM54LS190J DM54LS191J DM54LS190W DM54LS191W DM74LS190M DM74LS191M DM74LS190N or DM74LS191N See NS Package Number J16A M16A N16A or W16A
C1995 National Semiconductor Corporation TL F 6405 RRD-B30M... |
| Document |
 54LS190 Data Sheet
PDF 180.58KB |
| No. | Parte # | Fabricante | Descripción | Hoja de Datos |
|---|---|---|---|---|
| 1 | 54LS190 |
Texas Instruments |
SYNCHRONOUS UP/DOWN COUNTERS |
|
| 2 | 54LS190 |
Motorola |
PRESETTABLE BCD/DECADE UP/DOWN COUNTERS |
|
| 3 | 54LS191 |
Motorola |
PRESETTABLE BCD/DECADE UP/DOWN COUNTERS |
|
| 4 | 54LS191 |
Texas Instruments |
SYNCHRONOUS UP/DOWN COUNTERS |
|
| 5 | 54LS192 |
Motorola |
PRESETTABLE BCD/DECADE UP/DOWN COUNTER |
|
| 6 | 54LS193 |
Motorola |
PRESETTABLE 4-BIT BINARY UP/DOWN COUNTER |
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Desde 2024. D4U Semiconductor.
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