MCP23S08-E/SO Microchip Technology, MCP23S08-E/SO Datasheet - Page 9

• Manufacturer Part Number: MCP23S08-E/SO
• Description: IC I/O EXPANDER SPI 8B 18SOIC
• Manufacturer: Microchip Technology

Specifications of MCP23S08-E/SO

• Package / Case: 18-SOIC (7.5mm Width)
• Interface: SPI
• Number Of I /o: 8
• Interrupt Output: Yes
• Frequency - Clock: 10MHz
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Includes: POR
• Logic Family: MCP23S08
• Propagation Delay Time: 50 ns
• Operating Supply Voltage: 1.8 V to 5.5 V
• Power Dissipation: 700 mW
• Operating Temperature Range: - 40 C to + 125 C
• Input Voltage: 1.8 V to 5.5 V
• Logic Type: I/O Expander
• Maximum Clock Frequency: 10 MHz
• Maximum Operating Frequency: 1.7 MHz
• Mounting Style: SMD/SMT
• Output Current: 25 mA
• Output Voltage: 1.8 V to 4.5 V
• Chip Configuration: 8 Bit
• Bus Frequency: 10MHz
• Ic Interface Type: Serial, SPI
• No. Of I/o's: 8
• Supply Voltage Range: 1.8V To 5.5V
• Digital Ic Case Style: SOIC
• No. Of Pins: 18
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Delay Time: 50ns
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: GPIODM-KPLCD - BOARD DEMO LCD GPIO EXP KEYPAD
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

1.6.2
The IPOL 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:
© 2005 Microchip Technology Inc.
bit 7-0
INPUT POLARITY (IPOL) REGISTER
IPOL – INPUT POLARITY PORT REGISTER (ADDR 0x01)
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.
Legend:
R = Readable bit
- n = Value at POR
bit 7
R/W-0
IP7
R/W-0
IP6
R/W-0
IP5
W = Writable bit
‘1’ = Bit is set
MCP23008/MCP23S08
R/W-0
IP4
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-0
IP3
R/W-0
IP2
x = Bit is unknown
R/W-0
IP1
DS21919B-page 9
R/W-0
IP0
bit 0