AAT4290 查看數據表（PDF） - Advanced Analogic Technologies
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AAT4290 Datasheet PDF : 12 Pages
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AAT4290/91
I/O Expander Load Switches with Serial Control
Pin Descriptions
Pin #
AAT4290
AAT4291
1
1
2
7
3
6
4
4
5
5
6
N/A
7
N/A
8
8
N/A
2, 3
Symbol
IN
OUT2
OUT1
EN/SET
GND
OUT5
OUT4
OUT3
N/C
Function
Input power supply is connected to the P-channel MOSFET
sources. Connect a 1µF capacitor from IN to GND.
P-channel MOSFET drain.
P-channel MOSFET drain.
Input control pin using S2Cwire serial interface. The device
records rising edges of the clock and decodes them into 32
states (8 states for AAT4291) which controls the ON/OFF
states of the MOSFETs. See Table 1 and Table 2 for out-
put settings.
Ground connection.
P-channel MOSFET drain.
P-channel MOSFET drain.
P-channel MOSFET drain.
Not connected.
Pin Configuration
AAT4290
SC70JW-8
(Top View)
IN 1
OUT2 2
OUT1 3
EN/SET 4
8 OUT3
7 OUT4
6 OUT5
5 GND
AAT4291
SC70JW-8
(Top View)
IN 1
N/C 2
N/C 3
EN/SET 4
8 OUT3
7 OUT2
6 OUT1
5 GND
2
4290.2006.03.1.2
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