ON Semiconductor

DECADE COUNTER; DIVIDE-BY-TWELVE COUNTER; 4-BIT BINARY COUNTER

ON Semiconductor

SCHMITT TRIGGERS DUAL GATE/HEX INVERTER

ON Semiconductor

8-INPUT NAND GATE

ON Semiconductor

TRIPLE 3-INPUT NAND GATE

ON Semiconductor

QUAD 2-INPUT NOR GATE

ON Semiconductor

SCHMITT TRIGGERS DUAL GATE/HEX INVERTER

ON Semiconductor

DUAL DECADE COUNTER; DUAL 4-STAGE BINARY COUNTER

Motorola => Freescale

PRESETTABLE BCD/DECADE UP/DOWN COUNTER PRESETTABLE 4-BIT BINARY UP/DOWN COUNTER

ON Semiconductor

OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS

Motorola => Freescale

PRESETTABLE BCD/DECADE UP/DOWN COUNTER PRESETTABLE 4-BIT BINARY UP/DOWN COUNTER