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HD74HC668 Datasheet PDF - Renesas Electronics

Part NameDescriptionManufacturer
HD74HC668 Synchronous UP/Down Decade Counter Synchronous Up/Down 4-bit binary Counter Renesas
Renesas Electronics Renesas
Other PDF  no available.
HD74HC668 Datasheet PDF : HD74HC668 pdf   
HD74HC669P image

Description
This synchronous presettable decade counter features an internal carry look-ahead for cascading in high-speed counting applications. Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincident with each other when so instructed by the count-enable inputs and internal gating. This mode of operation helps eliminate the output counting spikes that are normally associated with asynchronous (ripple-clock) counters.

Features
• High Speed Operation
• High Output Current: Fanout of 10 LSTTL Loads
• Wide Operating Voltage: VCC = 2 to 6 V
• Low Input Current: 1 µA max
• Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)

 

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