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MCP23009ESS Datenblatt(PDF) 8 Page - Microchip Technology

Teilenummer MCP23009ESS
Bauteilbeschribung  8-Bit I/O Expander with Open-Drain Outputs
PDF  50 Pages
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Hersteller  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP23009ESS Datenblatt(HTML) 8 Page - Microchip Technology

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MCP23009/MCP23S09
DS22121B-page 8
© 2009 Microchip Technology Inc.
FIGURE 1-1:
MCP23009 I2C™ DEVICE PROTOCOL
S
P
SR
w
R
OP
ADDR
DOUT
DIN
- Start
- Restart
- Stop
- Write
- Read
- Device opcode
- Device address
- Data out from MCP23009
- Data in to MCP23009
S
P
SR
W
R
OP
ADDR
DIN
DIN
....
S
P
W
R
OP
ADDR
DOUT
DOUT
....
P
SR
W
OP
ADDR
DIN
....
P
P
SR
R
DOUT
DOUT
....
P
OP
DOUT
DOUT
....
P
SR
OP
DOUT
....
P
OP
DIN
S
P
W
OP
ADDR
DIN
DIN
....
Byte and Sequential Write
S
W
OP
SR
R
OP
DOUT
DOUT
....
P
Byte and Sequential Read
S
W
OP
ADDR
DIN
P
S
W
OP
SR
R
OP
DOUT
P
Byte
Sequential
Byte
Sequential
ADDR
ADDR



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