| Manufacturer | Part Number | Description |
|---|---|---|
Motorola Semiconductor |
54LS191 | PRESETTABLE BCD/DECADE UP/DOWN COUNTERS |
Texas Instruments |
54LS191 | SYNCHRONOUS UP/DOWN COUNTERS |
|
Texas Instruments |
SN54LS191 | SYNCHRONOUS UP/DOWN COUNTERS |
National Semiconductor |
DM54LS191 | Synchronous 4-Bit Up/Down Counters |
|
Motorola Semiconductor |
SN54LS191 | PRESETTABLE BCD/DECADE UP/DOWN COUNTER |