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CD54HC192 Datasheet(PDF) 8 Page - Texas Instruments

Part No. CD54HC192
Description  High-Speed CMOS Logic Presettable Synchronous 4-Bit Up/Down Counters
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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CD54HC192 Datasheet(HTML) 8 Page - Texas Instruments

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Test Circuits and Waveforms
FIGURE 1. ’HC192 SYNCHRONOUS DECADE COUNTERS, TYPICAL RESET, PRESET AND COUNT SEQUENCES
MASTER RESET
ASYNCHRONOUS PARALLEL LOAD
PRESET DATA
P0
P1
P2
P3
CLOCK UP
CLOCK DOWN
OUTPUTS
Q0
Q1
Q2
Q3
TERMINAL COUNT UP
TERMINAL COUNT DOWN
07
89012
COUNT DOWN
COUNT UP
RESET
10987
PRESET
SEQUENCES:
1. RESET OUTPUTS TO ZERO.
2. LOAD (PRESET) TO BCD SEVEN.
TERMINAL COUNT UP, ZERO,
3. COUNT UP TO EIGHT, NINE,
ONE AND TWO.
4. COUNT DOWN TO ONE, ZERO,
TERMINAL COUNT DOWN, NINE,
EIGHT AND SEVEN.
CD54/74HC192, CD54/74HC193, CD54/74HCT193


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