HD74LS191P   Datasheet

Renesas Electronics

Synchronous Up / Down 4-bit Binary Counter (single clock line)

Hitachi -> Renesas Electronics

Quadruple 2-input Positive NAND Gates

Renesas Electronics

Synchronous Up / Down Decade Counter (dual clock lines)

Hitachi -> Renesas Electronics

4-bit Bidirectional Universal Shift Registers

Renesas Electronics

Synchronous Up / Down Decade Counter (signal clock line)

Hitachi -> Renesas Electronics

Quadruple 2-input Positive NAND Gates

Hitachi -> Renesas Electronics

Synchronous Up/Down Decade Counters(single clock line)

Renesas Electronics

Synchronous Up / Down Decade Counter (dual clock lines)

Hitachi -> Renesas Electronics

Synchronous Up/Down 4-bit Binary Counter with Dual Clock Lines

Hitachi -> Renesas Electronics

Synchronous Up / Down Decade Counters (dual clock lines)