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7. 74HCT4052D brief introduction:
74HCT4052D is a 4-channel bi-directional analog multiplexer and multi-channel output
selector. Each multi-channel output selector has 4 independent input/output terminals and 1
common input/output terminal. It is often used in analog and digital multiplexing, and
multi-channel output selecting circuit and signal control system.
Its main features are:
● -5V to +5V widely range Power input
● Low on-resistance
● Logical level alternating
● Build-in interrupt before running
● In line with JEDEC 中 no.7A standard
● Automatic protection function
Pin introduction:
Pin
1
2Y0
2
2Y2
3
2Z
4
2Y3
5
2Y1
6
E
7
VEE
8
GND
9
S1
Designation
Function description
PC left audio input
HD terminal left audio input
Left audio input
SCART2 left audio input
AV left audio input
Ground
Ground
Ground
Select level input （+3.3V Power）
25
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