MCP23S08-E/SO Microchip Technology, MCP23S08-E/SO Datasheet - Page 17

• 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

1.6.10
The GPIO register reflects the value on the port.
Reading from this register reads the port. Writing to this
register modifies the Output Latch (OLAT) register.
REGISTER 1-10:
© 2005 Microchip Technology Inc.
bit 7-0
PORT (GPIO) REGISTER
GPIO – GENERAL PURPOSE I/O PORT REGISTER (ADDR 0x09)
GP7:GP0: These bits reflect the logic level on the pins <7:0>.
1 = Logic-high.
0 = Logic-low.
Legend:
R = Readable bit
- n = Value at POR
bit 7
R/W-0
GP7
R/W-0
GP6
R/W-0
GP5
W = Writable bit
‘1’ = Bit is set
MCP23008/MCP23S08
R/W-0
GP4
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-0
GP3
R/W-0
GP2
x = Bit is unknown
R/W-0
GP1
DS21919B-page 17
R/W-0
GP0
bit 0