Texas Instruments 74HC393 Two 4-Bit Counter IC (74393 IC) DIP-14 Package

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Description

Description: 

74HC series ICs are High-speed logic gates with very low power consumption that utilize advanced silicon-gate CMOS technology and 74HC393 is one of them. 74HC393 ICs contain two 4-bit counter by implementing 8 flip flops in a single package. Each 4-bit counter has an independent clock pin and a clear input pin. It can implement an n-bit counter with the capability of divide-by-256.
The 74HC393 ICs have a wide operating range of VCC from 2 V to 6 V. Maximum current consumption is 80 uA through Icc and 1 uA per input pin. And the propagation delay is 13 ns. They can drive 10 LS-TTL loads at a time. Which means that the output pin of the counter can drive 10 TTL based Low-Power Schottky( LS ) input pins. They can provide 4 mA on outputs at 5 V VCC. They allow inputs and outputs up to VCC. Recommended operating VCC is 5 V. Load Current can reach up to 25 mA per output pin and 50 mA for overall pins in between 0 V to VCC.

Specification:

Operating Voltage Range 2.0 to 6.0 V
Package DIP−14
Input Current 1 uA
Powering Current 80 uA
Output Current at VCC 4 mA
Fan-Out 10 LS-TTL Load
Propagation Delay 13 ns
Temperature Range -65 °C to +150 °C

 
Pin Configuration:

1 Counter Output (1QA, 1QB, 1QC, 1QD) 3, 4, 5, 6
2 Counter Output (2QA, 2QB, 2QC, 2QD) 11, 10, 9, 8
Clock (1CLK, 2CLK) 1, 13
Clear (1CLR, 2CLR) 2, 12
Power Supply (VCC) 14
Ground (GND) 7

 

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