Texas Instruments 54HC193
The ’HC193 devices are 4-bit synchronous, reversible, up/down binary counters. This mode of operation eliminates the output counting spikes normally associated with asynchronous (ripple-clock) counters.| Part No. | 54HC193 |
|---|---|
| Datasheet | 54HC193 Download |
| Manufacturer |  Texas Instruments |
| Description | 4-BIT SYNCHRONOUS UP/DOWN COUNTERS |
| Buy | Stock & Price |
D Wide Operating Voltage Range of 2 V to 6 V D Outputs Can Drive Up To 10 LSTTL Loads D Low Power Consumption, 80-µA Max ICC D Typical tpd = 20 ns D ±4-mA Output Drive at 5 V D Low Input Current of 1 µA Max SN54HC193 . . . J OR W PACKAGE SN74HC193 . . . D, N, NS, OR PW PACKAGE (TOP VIEW) B1 QB 2 QA 3 DOWN 4 UP 5 QC 6 QD 7 GND 8 16 VCC 15 A 14 CLR 13 BO 12 CO 11 LOAD 10 C 9D SN54HC193, SN74HC193 4ĆBIT SYNCHRONOUS UP/DOWN COUNTERS (DUAL CLOCK WITH CLEAR) SCLS122D − DECEMBER 1982 − REVISED OCTOBER 2003 D Look-Ahead Circuitry Enhances Cascaded Counters D Fully Synchronous in Count Modes D Parallel Asynchronous Load for Modulo-N Count Lengths D Asynchronous Clear SN54HC193 . . . FK PACKAGE (TOP VIEW) QB B NC VCC A QA DOWN NC UP QC 3 2 1 20 19 4 18 5 17 6 16 7 15 8 14 9 10 11 12 13 CLR BO NC CO LOAD QD GND NC D C description/ordering information NC − No internal connection Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincidentally with each other when so instructed by the steering logic.
