MCP23S18T-E/MJ Microchip Technology, MCP23S18T-E/MJ Datasheet - Page 9

• Manufacturer Part Number: MCP23S18T-E/MJ
• Description: 16-bit Input/Output Expander, I2C Interface, Pb-free 24 QFN 4x4mm T/R
• Manufacturer: Microchip Technology

Specifications of MCP23S18T-E/MJ

• Interface: SPI
• Number Of I /o: 16
• Interrupt Output: Yes
• Frequency - Clock: 10MHz
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 24-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FIGURE 1-1:
© 2008 Microchip Technology Inc.
SR
w
S
P
R
ADDR
D
D
OP
OUT
IN
- Start
- Restart
- Stop
- Write
- Read
- Data out from MCP23018
- Data in to MCP23018
- Device opcode
- Device address
Sequential
Sequential
Byte
Byte
MCP23018 I
S
S
S
S
S
S
OP
OP
OP
OP
OP
OP
2
C™ DEVICE PROTOCOL
W
R
W
W
W
W
ADDR
Byte and Sequential Write
Byte and Sequential Read
ADDR
ADDR
ADDR
ADDR
SR
SR
SR
MCP23018/MCP23S18
OP
SR
SR
P
SR
D
P
D
IN
OP
OP
OUT
D
D
W
OP
OP
IN
IN
OP
....
ADDR
....
R
R
....
R
W
R
D
D
IN
D
D
ADDR
OUT
OUT
D
OUT
D
D
P
OUT
D
IN
OUT
IN
....
....
....
....
....
P
P
D
P
D
D
OUT
OUT
D
D
P
IN
OUT
IN
DS22103A-page 9
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