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74VHC238 数据表(PDF) 2 Page - STMicroelectronics

部件名 74VHC238
功能描述  3 TO 8 LINE DECODER
PDF  8 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

74VHC238 数据表(HTML) 2 Page - STMicroelectronics

  74VHC238 Datasheet HTML 1Page - STMicroelectronics 74VHC238 Datasheet HTML 2Page - STMicroelectronics 74VHC238 Datasheet HTML 3Page - STMicroelectronics 74VHC238 Datasheet HTML 4Page - STMicroelectronics 74VHC238 Datasheet HTML 5Page - STMicroelectronics 74VHC238 Datasheet HTML 6Page - STMicroelectronics 74VHC238 Datasheet HTML 7Page - STMicroelectronics 74VHC238 Datasheet HTML 8Page - STMicroelectronics  
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INPUT EQUIVALENT CIRCUIT
LOGIC DIAGRAM
PIN DESCRIPTION
PIN No
SYMBOL
NAME AND FUNCT ION
1, 2, 3
A, B, C
Address Inputs
4, 5
G2A, G2B
Enable Inputs
6
G1
Enable Input
15, 14, 13,
12, 11, 10,
9, 7
Y0 to Y7
Outputs
8
GND
Ground (0V)
16
VCC
Positive Supply Voltage
TRUTH TABLE
INPUT S
OUTPUTS
ENABL E
SELECT
G2B
G2A
G 1
C
B
A
Y0Y1Y2Y3
Y4
Y5Y6Y7
X
X
L
X
X
X
LLLLL
L
L
L
X
H
X
X
X
X
LLLLL
L
L
L
H
X
X
X
X
X
LLLLL
L
L
L
LL
H
LLL
H
LLLL
L
L
L
LL
H
L
L
H
L
H
LLL
L
L
L
L
L
HLHL
L
L
HL
L
L
L
L
LL
H
L
H
H
LLL
H
L
L
L
L
LL
H
H
LL
LLLL
H
L
L
L
LL
H
H
L
H
LLLLL
H
L
L
LL
H
H
H
L
LLLLL
L
H
L
L
L
HHHH
LLLLL
L
L
H
X:Don’t Care
Thislogic diagram has notbe used to estimate propagation delays
74VHC238
2/8



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