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SL74HC393

System Logic Semiconductor
Part Number SL74HC393
Manufacturer System Logic Semiconductor
Description Dual 4-Stage Binary Ripple Counter
Published Apr 16, 2005
Detailed Description SL74HC393 Dual 4-Stage Binary Ripple Counter High-Performance Silicon-Gate CMOS The SL74HC393 is identical in pinout to...
Datasheet PDF File SL74HC393 PDF File

SL74HC393
SL74HC393

Overview
SL74HC393 Dual 4-Stage Binary Ripple Counter High-Performance Silicon-Gate CMOS The SL74HC393 is identical in pinout to the LS/ALS393.
The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs.
This device consists of two independent 4-bit binary ripple counters with parallel outputs from each counter stage.
A÷256 counter can be obtained by cascading the two binary counters.
Internal flip-flops are triggered by high-to-low transitions of the clock input.
Reset for the counters is asynchronous and active-high.
State changes of the Q outputs do not occur simultaneously becaue of internal ripple delays.
Therefore, decoded output signals are subject to decoding spikes and should not be used as clocks or as strobes except when gated with the Clock of the SL74HC393.
• Outputs Directly Interface to CMOS, NMOS, and TTL • Operating Voltage Range: 2.
0 to 6.
0 V • Low Input Current: 1.
0 µA • High Noise Immunity Characteristic of...


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