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M54HC193 数据表(PDF) 2 Page - STMicroelectronics

部件名 M54HC193
功能描述  RAD-HARD SYNCHRONOUS UP/DOWN BINARY COUNTER
PDF  13 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M54HC193 数据表(HTML) 2 Page - STMicroelectronics

  M54HC193 Datasheet HTML 1Page - STMicroelectronics M54HC193 Datasheet HTML 2Page - STMicroelectronics M54HC193 Datasheet HTML 3Page - STMicroelectronics M54HC193 Datasheet HTML 4Page - STMicroelectronics M54HC193 Datasheet HTML 5Page - STMicroelectronics M54HC193 Datasheet HTML 6Page - STMicroelectronics M54HC193 Datasheet HTML 7Page - STMicroelectronics M54HC193 Datasheet HTML 8Page - STMicroelectronics M54HC193 Datasheet HTML 9Page - STMicroelectronics Next Button
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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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