SNJ54HC193W

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 The ’HC193 devices are 4-bit synchronous, reversible, up/down binary counters. 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. This mode of operation eliminates the output counting spikes normally associated with asynchronous (ripple-clock) counters. ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP − N Tube of 25 SN74HC193N SN74HC193N Tube of 40 SN74HC193D −40°C to 85°C SOIC − D SOP − NS Reel of 2500 Reel of 250 Reel o...