KK74HC393A
KK74HC393A is Dual 4-Stage Binary Ripple Counter manufactured by Kodenshi AUK Group.
TECHNICAL DATA
Dual 4-Stage Binary Ripple Counter
High-Performance Silicon-Gate CMOS
The KK74HC393A is identical in pinout to the LS/ALS393. The device inputs are patible with standard CMOS outputs; with pullup resistors, they are patible 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 because 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 KK74HC393A.
- 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 CMOS Devices
ORDERING INFORMATION KK74HC393AN Plastic KK74HC393AD SOIC TA = -55° to 125° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
Inputs Clock X PIN 14 =VCC PIN 7 = GND H L Reset H L L L L X = don’t care L No Change No Change No Change Advance to Next State Outputs
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MAXIMUM RATINGS-
Symbol VCC VIN VOUT IIN IOUT ICC PD Tstg TL
- Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage (Referenced to GND) DC Output Voltage (Referenced to GND) DC Input Current, per Pin DC Output Current, per Pin DC Supply Current, VCC and GND Pins Power Dissipation in Still Air, Plastic DIP+ SOIC Package+ Storage Temperature Lead Temperature, 1 mm from Case for 10 Seconds (Plastic DIP or SOIC Package)
Value -0.5 to +7.0 -1.5 to VCC +1.5 -0.5 to VCC +0.5 ±20 ±25 ±50 750 500 -65 to +150 260
Unit V V V m A m A m A m W °C °C
Maximum Ratings are those values beyond which damage to the device may occur. Functional...