Hitachi HD74HC74
The flip-flop is edge sensitive to the clock input and change state on the negative going transition of the clock pulse. Each flip-flop has independent, J, K, clock, and clear inputs and Q and Q outputs.| Part No. | HD74HC74 |
|---|---|
| Datasheet | HD74HC74 Download |
| Manufacturer |  Hitachi |
| Description | Dual D-type Flip-Flops (with Preset and Clear) |
| Buy | Stock & Price |
DESCRIPTION
Clear is independent of the clock and accomplished by a low level on the input.FEATURES
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● High Speed Operation: tpd (Clock to Q) = 18 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) = 2 µA max (Ta = 25°C) Function Table Inputs Clear L H H H H H H H L H Clock X J X L L H H X X X K X L H L H X X X Outputs Q L No change L H Toggle No change No change No change H L Q H HD74HC73 Pin Arrangement 1CK 1 CLR 1CLR 2 1K 3 VCC 4 2CK 5 2CLR 6 2J 7 K CK J CLR Q Q J CK K Q Q 14 1J 13 1Q 12 1Q 11 GND 10 2K 9 2Q 8 2Q (Top view) Block Diagram Q CK CK Q K CK CK CK CK CLR J CK CK CK CK CK 2 HD74HC73 DC Characteristics Ta = 25°C Item Input voltage Symbol VIH Ta = –40 to +85°C Max — — — 0.5 1.35 1.8 — — — — — 0.1 0.1 0.1 0.33 0.33 ±1.0 20 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 VI...
