DSA00112432.pdf
by STMicroelectronics
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M54/74HC690/691
M54/74HC692/693
HC690/692 DECADE COUNTER/REGISTER (3-STATE)
HC691/693 4 BIT BINARY COUNTER/REGISTER (3-STATE)
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HIGH SPEED
fMAX = 50 MHz (TYP.) at VCC =
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Original
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Unknown
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Unknown
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Unknown
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