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54LS191 |
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| Part Number | 54LS191 |
| Manufacturer | Motorola |
| Description | The LS190 is a synchronous Up / Down BCD Decade Counter and the LS191 is a synchronous Up / Down 4-Bit Binary Counter. The operating modes of the LS190 decade counter and the LS191 binary counter are ... |
| Features |
ency • Synchronous Counting • Asynchronous Parallel Load • Individual Preset Inputs • Count Enable and Up/ Down Control Inputs • Cascadable • Input Clamp Diodes Limit High Speed Termination Effects CONNECTION DIAGRAM DIP (TOP VIEW) VCC 16 P0 15 CP 14 RC 13 TC 12 PL 11 P2 10 P3 9 NOTE: The Flatpak version has the same pinouts (Connection Diagram) as the Dual In-Line Package. 1 P1 2 Q1 3 Q0 4 CE 5 U/D 6 Q2 7 Q3 8 GND PIN NAMES LOADING (Note a) HIGH LOW CE Count Enable (Active LOW) Input 1.5 U.L. 0.7 U.L. CP Clock Pulse (Active HIGH going edge) Input 0.5 U.L. 0.25 U.L. ... |
| Document |
 54LS191 Data Sheet
PDF 314.77KB |
| Distributor | Stock | Price | Buy |
|---|
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | 54LS190 |
Texas Instruments |
SYNCHRONOUS UP/DOWN COUNTERS |
|
| 2 | 54LS190 |
Motorola |
PRESETTABLE BCD/DECADE UP/DOWN COUNTERS |
|
| 3 | 54LS190 |
National Semiconductor |
Synchronous 4-Bit Up/Down Counters |
|
| 4 | 54LS191 |
Texas Instruments |
SYNCHRONOUS UP/DOWN COUNTERS |
|
| 5 | 54LS192 |
Motorola |
PRESETTABLE BCD/DECADE UP/DOWN COUNTER |
|