BU8272GUW ROHM Co. Ltd., BU8272GUW Datasheet - Page 4

• Manufacturer Part Number: BU8272GUW
• Description: Gpio Expander Ic
• Manufacturer: ROHM Co. Ltd.

● Block Diagram
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BU8272GUW
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VDDI2C
XRST
VDD
ADR
SDA
INT
SCL
Input
Filter
Reset
Functional Block Diagram
Interrupt
I
Control
2
Logic
C Bus
Fig.3 Functional Block Diagram
4/17
Write Pulse
Read Pulse
Register
INT_MASK
Shift
IN/OUT
Control
12bit
8bit
GPIO
GPIO
[19:8]
[7:0]
12bit
Technical Note
2009.09 - Rev.A
8bit
GPIO[19:8]
GPIO[7:0]
VDDIO2
VDDIO1