| CD74HC191M96 |  | Texas Instruments | High Speed CMOS Logic Presettable Synchronous 4-Bit Binary Up/Down Counters 16-SOIC -55 to 125 |   |   | 
| SN74HC191DT |  | Texas Instruments | 4-Bit Synchronous Up/Down Binary Counters 16-SOIC -40 to 85 |   |  | 
| CD74HC191MT |  | Texas Instruments | High Speed CMOS Logic Presettable Synchronous 4-Bit Binary Up/Down Counters 16-SOIC -55 to 125 |   |  | 
| CD74HC191MG4 |  | Texas Instruments | High Speed CMOS Logic Presettable Synchronous 4-Bit Binary Up/Down Counters 16-SOIC -55 to 125 |   |   | 
| SN74HC191D |  | Texas Instruments | 4-Bit Synchronous Up/Down Binary Counters 16-SOIC -40 to 85 |   |   |