MCP23S17T-E/SO Microchip Technology, MCP23S17T-E/SO Datasheet - Page 13

• Manufacturer Part Number: MCP23S17T-E/SO
• Description: IC I/O EXPANDER SPI 16B 28SOIC
• Manufacturer: Microchip Technology

Specifications of MCP23S17T-E/SO

• 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: 28-SOIC (7.5mm Width)
• Chip Configuration: 16 Bit
• Bus Frequency: 10MHz
• Ic Interface Type: Serial, SPI
• No. Of I/o's: 16
• Supply Voltage Range: 4.5V To 5.5V
• Digital Ic Case Style: SOIC
• No. Of Pins: 28
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MCP23X17EV - BOARD EVAL FOR MCP23X17GPIODM-KPLCD - BOARD DEMO LCD GPIO EXP KEYPAD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

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 1-2:
© 2007 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: These bits control 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 (ADDR 0x01)
W = Writable bit
‘1’ = Bit is set
R/W-0
IP5
R/W-0
IP4
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
MCP23017/MCP23S17
R/W-0
IP3
R/W-0
IP2
x = Bit is unknown
R/W-0
IP1
DS21952B-page 13
R/W-0
IP0
bit 0