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M54HC193K1 Scheda tecnica(PDF) 2 Page - STMicroelectronics

Il numero della parte M54HC193K1
Spiegazioni elettronici  RAD-HARD SYNCHRONOUS UP/DOWN BINARY COUNTER
PDF  13 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M54HC193K1 Scheda tecnica(HTML) 2 Page - STMicroelectronics

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M54HC193
2/13
IEC LOGIC SYMBOLS
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
TRUTH TABLE
X : Don’t Care
PIN N°
SYMBOL
NAME AND FUNCTION
3, 2, 6, 7
QA to QD
Flip-Flop Outputs
4
CCD
Count Down Clock Input
5
CCU
Count Up Clock Input
11
LOAD
Asynchronous Parallel
Load Input (Active LOW)
12
CARRY
Count Up (Carry)
Output (Active LOW)
13
BORROW
Count Down (Borrow)
Output (Active LOW)
14
CLR
Asynchronous Reset
Input (Active High)
15, 1, 10, 9
A to D
Data Inputs
8
GND
Ground (0V)
16
VCC
Positive Supply Voltage
COUNT UP
COUNT DOWN
LOAD
CLEAR
FUNCTION
HH
L
COUNT UP
HH
L
NO COUNT
HH
L
COUNT DOWN
HH
L
NO COUNT
X
X
L
L
PRESET
X
X
X
H
RESET



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