74190
Synchronous Decade Up/Down Counters (National Semiconductor)
74190
4 BIT SYNCHRONOUS UP/DOWN COUNTERS (SGS-THOMSON)
74190
Synchronous Up/Down Counters (Texas Instruments)
74191
Synchronous 4-Bit Up/Down Counter (Fairchild Semiconductor)
74191
Synchronous Up/Down 4-Bit Binary Counter (National Semiconductor)
74191
4 BIT SYNCHRONOUS UP/DOWN COUNTERS (SGS-THOMSON)
74191
Synchronous Up/Down Counters (Texas Instruments)
74192
SYNCHRONOUS UP/DOWN DECADE/BINARY COUNTER (STMicroelectronics)
74192
Up / Down Decade Counter (National Semiconductor)
74193
Synchronous 4-Bit Binary Counter (Fairchild Semiconductor)