参数资料
型号: M74HC138TTR
厂商: STMICROELECTRONICS
元件分类: 编、解码器及复用、解复用
英文描述: HC/UH SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16
封装: TSSOP-16
文件页数: 3/10页
文件大小: 285K
代理商: M74HC138TTR
M74HC138
2/10
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
TRUTH TABLE
X : Don’t Care
LOGIC DIAGRAM
This logic diagram has not be used to estimate propagation delays
PIN No
SYMBOL
NAME AND FUNCTION
1, 2, 3
A, B, C
Address Inputs
4, 5
G2A, G2B
Enable Inputs
6
G1
Enable Input
9, 10, 11, 12,
13, 14, 15,
7
Y0 to Y7
Data Outputs
8
GND
Ground (0V)
16
VCC
Positive Supply Voltage
INPUTS
OUTPUTS
ENABLE
SELECT
G2B
G2A
G1
CBA
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
X
L
X
HHHHH
HHH
XH
XXXX
HHHHH
HHH
HXXXXX
HHHHH
HHH
LL
H
LLLL
HHHH
HHH
L
LHL
LH
HLH
H
L
LHLHLH
HLH
H
L
H
L
HHHHH
L
H
HHH
L
HH
L
HHHH
L
HHH
L
HH
L
HHHHHH
L
H
L
HHH
L
HHHHH
H
L
H
L
HHHHHHHHH
HH
L
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相关代理商/技术参数
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