MCP23S18T-E/MJ Microchip Technology, MCP23S18T-E/MJ Datasheet - Page 19
MCP23S18T-E/MJ
Manufacturer Part Number
MCP23S18T-E/MJ
Description
16-bit Input/Output Expander, I2C Interface, Pb-free 24 QFN 4x4mm T/R
Manufacturer
Microchip Technology
Datasheet
1.MCP23018-ESO.pdf
(56 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCP23S18T-E/MJ
Manufacturer:
MICROCHIP
Quantity:
12 000
1.6.2
This register allows the user to configure the polarity on
the corresponding GPIO port bits.
If a bit is set, the corresponding GPIO register bit will
reflect the inverted value on the pin.
REGISTER 1-4:
© 2008 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
R/W-0
IP7
INPUT POLARITY REGISTER
IP7:IP0: Controls the polarity inversion of the input pins <7:0>
1 = GPIO register bit will reflect the opposite logic state of the input pin.
0 = GPIO register bit will reflect the same logic state of the input pin.
R/W-0
IP6
IPOL – INPUT POLARITY PORT REGISTER
W = Writable bit
‘1’ = Bit is set
R/W-0
IP5
R/W-0
IP4
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
MCP23018/MCP23S18
R/W-0
IP3
R/W-0
IP2
x = Bit is unknown
R/W-0
IP1
DS22103A-page 19
R/W-0
IP0
bit 0