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74ACT11191 - SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTER

Description

The 74ACT11191 is a synchronous, 4-bit binary reversible up/down counter.

A synchronous counting operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincident with each other when so instructed by the steering logic.

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Other Datasheets by Texas Instruments

Part Number Description
74ACT11194 4-BIT BIDIRECTIONAL UNIVERSAL SHIFT REGISTER
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74ACT11112 DUAL J-K NEGATIVE-EDGE-TRIGGERED FLIP-FLOP
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Full PDF Text Transcription

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ą 74ACT11191 SYNCHRONOUS 4ĆBIT UP/DOWN BINARY COUNTER ą SCAS106A − D3455, FEBRUARY 1990 − REVISED APRIL 1993 • Inputs Are TTL-Voltage Compatible • Single Down/Up Count Control Line • Look-Ahead Circuitry Enhances Speed of Cascaded Counters • Fully Synchronous in Count Modes • Asynchronously Presettable With Load Control • Flow-Through Architecture Optimizes PCB Layout • Center-Pin VCC and GND Configurations to Minimize High-Speed Switching Noise • EPICt (Enhanced-Performance Implanted CMOS) 1-mm Process • Package Options Include Plastic Small-Outline Packages and Standard Plastic 300-mil DIPs DW OR N PACKAGE (TOP VIEW) RCO QA QB GND GND GND GND QC QD MAX/MIN 1 2 3 4 5 6 7 8 9 10 20 D/U 19 CLK 18 A 17 B 16 VCC 15 VCC 14 C 13 D 12 CTEN 11 LOAD description The 74ACT11191 is a synchronou
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