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SN74F193A Datasheet(PDF) 4 Page - Texas Instruments

Part No. SN74F193A
Description  SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTER WITH DUAL CLOCK AND CLEAR
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN74F193A
SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTER
WITH DUAL CLOCK AND CLEAR
SDFS031A – D3693, JANUARY 1991 – REVISED OCTOBER 1993
2–4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
typical clear, load, and count sequence
Illustrated below is the following sequence:
1.
Clear outputs to zero
2.
Load (preset) to binary thirteen
3.
Count up to fourteen, fifteen (carry), zero, one, and two
4.
Count down to one, zero (borrow), fifteen, fourteen, and thirteen
0
A
B
C
D
UP
DOWN
QA
QD
QC
QB
Count Up
Count Down
13
0
2
11
0
Data
Inputs
CLR
Outputs
LOAD
CO
BO
14
15
15
14
13
Sequence
Illustrated
Clear
Preset




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