Datasheet Details
- Part number
- HD74HC490
- Manufacturer
- Hitachi Semiconductor
- File Size
- 44.31 KB
- Datasheet
- HD74HC490_HitachiSemiconductor.pdf
- Description
- Dual 4-bit Decade Counters
HD74HC490 Description
HD74HC490 Dual 4-bit Decade Counters .
This circuit contains eight master-slave flip-flops and additional gating to implement two individual 4-bit decade counters.
HD74HC490 Features
* High Speed Operation: tpd (Clock to QA) = 13 ns typ (CL = 50 pF) 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)
Funct
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