M74HC193 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'M74HC193' PDF : 14 Pages View PDF
M74HC193
INPUT AND OUTPUT EQUIVALENT CIRCUIT
TRUTH TABLE
COUNT UP
H
H
X
X
X : Don’t Care
COUNT DOWN
H
H
X
X
LOAD
H
H
H
H
L
X
PIN DESCRIPTION
PIN No
3, 2, 6, 7
4
5
11
12
13
14
15, 1, 10, 9
8
16
SYMBOL
QA to QD
CPD
CPU
LOAD
CARRY
BORROW
CLEAR
A to D
GND
Vcc
NAME AND FUNCTION
Flip-Flop Outputs
Count Down Clock Input
Count Up Clock Input
Asynchronous Parallel
Load Input (Active LOW)
Count Up (Carry)
Output (Active LOW)
Count Down (Borrow)
Output (Active LOW)
Asynchronous Reset
Input (Active High)
Data Inputs
Ground (0V)
Positive Supply Voltage
CLEAR
L
L
L
L
L
H
FUNCTIO N
COUNT UP
NO COUNT
COUNT DOWN
NO COUNT
PRESET
RESET
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