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M74HC237 数据表(PDF) 2 Page - STMicroelectronics

部件名 M74HC237
功能描述  3 TO 8 LINE DECODER LATCH
PDF  11 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M74HC237 数据表(HTML) 2 Page - STMicroelectronics

  M74HC237 Datasheet HTML 1Page - STMicroelectronics M74HC237 Datasheet HTML 2Page - STMicroelectronics M74HC237 Datasheet HTML 3Page - STMicroelectronics M74HC237 Datasheet HTML 4Page - STMicroelectronics M74HC237 Datasheet HTML 5Page - STMicroelectronics M74HC237 Datasheet HTML 6Page - STMicroelectronics M74HC237 Datasheet HTML 7Page - STMicroelectronics M74HC237 Datasheet HTML 8Page - STMicroelectronics M74HC237 Datasheet HTML 9Page - STMicroelectronics Next Button
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M74HC237
2/11
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
TRUTH TABLE
X : Don’t Care
PIN No
SYMBOL
NAME AND FUNCTION
1, 2, 3
A, B, C
Data Inputs
4GL
Latch Enable Input
5G2
Data Enable Input (Active
LOW)
6
G1
Data Enable Input (Active
HIGH)
15, 14, 13,
12, 11, 10, 9,
7
Y0 to Y7
Decoder Outputs
8
GND
Ground (0V)
16
VCC
Positive Supply Voltage
INPUTS
OUTPUTS
ENABLE
SELECT
GL
G2
G1
C
B
A
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
X
X
L
X
X
X
LLLLL
LLL
XH
XXXX
LLLLL
LLL
LL
H
LLL
H
LLLL
LLL
L
LHL
LHLHL
L
L
L
L
L
L
LHLHL
L
LHL
L
L
L
L
L
LHLH
HL
L
LHL
L
L
L
LL
H
H
LLLLLL
H
LLL
LL
H
H
L
H
LLLLL
H
L
L
LL
H
H
H
LLLLLL
L
H
L
L
L
HHHH
LLLLL
LL
H
H
L
H
X
X
X
Outputs corresponding to stored address H: all others L



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