| Manufacturer | Part Number | Description |
|---|---|---|
Texas Instruments
| 54191 | Synchronous Up/Down Counters |
| 54191 | Synchronous Up/Down 4-Bit Binary Counter | |
WillSEMI
| ESD54191CZ | Small Power TVS |
| DM54191 | Synchronous Up/Down 4-Bit Binary Counter | |
SGS-THOMSON
| 54191 | 4 BIT SYNCHRONOUS UP/DOWN COUNTERS |
Texas Instruments
| SN54191 | SYNCHRONOUS UP/DOWN COUNTERS |
Motorola Semiconductor (now NXP Semiconductors)
| 54191 | PRESETTABLE 4-BIT BINARY UP/DOWN COUNTERS |