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M54HC192C1R データシート(PDF) 2 Page - STMicroelectronics

部品番号 M54HC192C1R
部品情報  SYNCHRONOUS UP/DOWN DECADE(,BINARY) COUNTER
PDF  15 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M54HC192C1R データシート(HTML) 2 Page - STMicroelectronics

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INPUT AND OUTPUT EQUIVALENT CIRCUIT
TRUTH TABLE
COUNT UP
COUNT DOWN
LOAD
CLEAR
FUNCTION
H
H
L
COUNT UP
H
H
L
NO COUNT
H
H
L
COUNT DOWN
H
H
L
NO COUNT
X
X
L
L
PRESET
X
X
X
H
RESET
X: Don’t Care
PIN DESCRIPTION
PIN No
SYMBOL
NAME AND FUNCTION
3, 2, 6, 7
QA to QD
Flip-Flop Outputs
4CPD
Count Down Clock Input
5CPU
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
CLEAR
Asynchronous Reset
Input (Active HIGH)
15, 1, 10, 9
DA to DD
Data Inputs
8
GND
Ground (0V)
16
VCC
Positive Supply Voltage
IEC LOGIC SYMBOL (HC193)
IEC LOGIC SYMBOL (HC191)
M54/M74HC192/193
2/15



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