HD74HC21
HD74HC21 is Dual 4-input AND Gates manufactured by Hitachi Semiconductor.
Dual 4-input AND Gates
Features
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- High Speed Operation: tpd = 11 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) = 1 µA max (Ta = 25°C)
Pin Arrangement
1A 1B NC 1C 1D 1Y GND
1 2 3 4 5 6 7 (Top view)
14 VCC 13 2D 12 2C 11 NC 10 2B 9 8 2A 2Y
DC Characteristics
Ta = 25°C Item Input voltage Symbol VIH Ta =
- 40 to +85°C Max
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- 0.5 1.35 1.8
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- 0.1 0.1 0.1 0.33 0.33 ±1.0 10 µA µA I OL = 4 mA I OL = 5.2 mA Vin = VCC or GND Vin = VCC or GND, Iout = 0 µA V I OH =
- 4 mA I OH =
- 5.2 mA Vin = VIH or VIL I OL = 20 µA V Vin = VIH or VIL...