ON Semiconductor
QUAD 2-INPUT NOR GATE
ON Semiconductor
SCHMITT TRIGGERS DUAL GATE/HEX INVERTER
ON Semiconductor
SYNCHRONOUS 4-BIT UP/DOWN COUNTER
ON Semiconductor
BCD DECADE/MODULO 16 BINARY SYNCHRONOUS BI-DIRECTIONAL COUNTERS
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