SN74LS399
QUADRUPLE 2-INPUT MULTIPLEXER (Texas Instruments)
SN74LS399
QUAD 2-PORT REGISTER (Motorola)
SN74LS390
DUAL DECADE COUNTER / DUAL 4-STAGE BINARY COUNTER (Motorola)
SN74LS390
DUAL 4-BIT DECADE AND BINARY COUNTERS (Texas Instruments)
SN74LS393
DUAL DECADE COUNTER / DUAL 4-STAGE BINARY COUNTER (Motorola)
SN74LS393
DUAL 4-BIT DECADE AND BINARY COUNTERS (Texas Instruments)
SN74LS393
Dual 4-Stage Binary Counter (ON Semiconductor)
SN74LS395
4-BIT SHIFT REGISTER (Motorola)
SN74LS398
QUAD 2-PORT REGISTER (Motorola)
SN74LS398D
QUAD 2-PORT REGISTER (Motorola)