54LS190
PRESETTABLE BCD/DECADE UP/DOWN COUNTERS (Motorola)
54LS190
Synchronous 4-Bit Up/Down Counters (National Semiconductor)
54LS191
PRESETTABLE BCD/DECADE UP/DOWN COUNTERS (Motorola)
54LS191
SYNCHRONOUS UP/DOWN COUNTERS (Texas Instruments)
54LS192
PRESETTABLE BCD/DECADE UP/DOWN COUNTER (Motorola)
54LS193
PRESETTABLE 4-BIT BINARY UP/DOWN COUNTER (Motorola)
54LS10
Triple 3-Input NAND Gates (National Semiconductor)
54LS109
Dual Positive-Edge-Triggered J-K Flip-Flops (National Semiconductor)
54LS109A
Dual J-K Positive-Edge-Triggered Flip-Flops (Texas Instruments)
54LS11
Triple 3-Input AND Gates (National Semiconductor)