HD74HC4024
HD74HC4024 is 7-stage Binary Counter manufactured by Hitachi Semiconductor.
Description
The HD74HC4024 is a 7-stage counter. This device is incremented on the falling edge (negative transition) of the input clock, and all its output is reset to a low level by applying a logical high on its reset input.
Features
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- High Speed Operation: tpd (Clock to Q1) = 14 ns typ (CL = 50 p F) 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)
Function Table
Clock L L H H Reset L H L H L H L H Outputs State No change All outputs are low No change All outputs are low No change All outputs are low Advance to next state All outputs are low
Pin Arrangement
Clock Reset Q7 Q6 Q5 Q4 GND
1 2 3 4 5 6 7 (Top view) R Q7 Q6 Q5 Q4 Q3 C
14 13 Q1 Q2 12 11 10 9 8
VCC NC Q1 Q2 NC Q3 NC
Block Diagram
Clock
R Reset
Q1
Q2
Q6
Q7
DC Characteristics
Ta = 25°C Item Input voltage Symbol VIH Ta =
- 40 to +85°C Max
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- 0.5 1.35...