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M74HC294 データシート(PDF) 2 Page - STMicroelectronics

部品番号 M74HC294
部品情報  PROGRAMMABLE DIVIDER/TIMER
PDF  14 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M74HC294 データシート(HTML) 2 Page - STMicroelectronics

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INPUT AND OUTPUT EQUIVALENT CIRCUIT
(TOTEM POLE OUTPUT)
PIN DESCRIPTION (HC292/7292)
PIN No
SYMBOL
NAME AND FUNCTION
4, 5
CLK1,
CLK2
input Clock
1, 2, 10,
14, 15
A to E
Program Inputs
3, 6, 13
TP1, TP2,
TP3
Test Point Outputs
11
CLR
Clear (Active LOW)
7
Q
Output
8
GND
Ground (0V)
16
VCC
Positive Supply Voltage
IEC LOGIC SYMBOLS
TRUTH TABLE
CLEAR
CLOCK1
CLOCK2
Q OUTPUT MODE
L
X
X
CLEARED TO L
H
L
UP COUNT
HL
H
H
X
NO CHANGE
HX
H
INPUT AND OUTPUT EQUIVALENT CIRCUIT
(OPEN DRAIN OUTPUT, HC292/294)
PIN DESCRIPTION (HC294/7294)
PIN No
SYMBOL
NAME AND FUNCTION
4, 5
CLK1,
CLK2
input Clock
1, 2, 14, 15
A to D
Program Inputs
3
TP1
Test Point Output
11
CLR
Clear (Active LOW)
7
Q
Output
8
GND
Ground (0V)
16
VCC
Positive Supply Voltage
HC292/HC7292
HC294/HC7294
M54/M74HC292/7292/294/7294
2/14



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