Hitachi -> Renesas Electronics
Synchronous Up/Down 4-bit Binary Counter with Dual Clock Lines
Hitachi -> Renesas Electronics
Synchronous Up/Down Decade Counters(single clock line)
Motorola => Freescale
4-STAGE PRESETTABLE RIPPLE COUNTERS
Fairchild Semiconductor
4-Bit Bidirectional Universal Shift Register
Motorola => Freescale
UNIVERSAL 4-BIT SHIFT REGISTER
Fairchild Semiconductor
Synchronous 4-Bit Binary Counter with Dual Clock
ON Semiconductor
PRESETTABLE BCD/DECADE UP/DOWN COUNTER PRESETTABLE 4-BIT BINARY UP/DOWN COUNTER
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