MCP23008T-E/SS Microchip Technology, MCP23008T-E/SS Datasheet - Page 19

• Manufacturer Part Number: MCP23008T-E/SS
• Description: IC,I/O PORT,8-BIT,SSOP,20PIN,PLASTIC
• Manufacturer: Microchip Technology

Specifications of MCP23008T-E/SS

• Rohs Compliant: YES
• Interface: I²C
• Number Of I /o: 8
• Interrupt Output: Yes
• Frequency - Clock: 1.7MHz
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 20-SSOP
• Includes: POR
• 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
• Other names: Q2170569

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:
© 2007 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
R/W-0
GP7
PORT (GPIO) REGISTER
GP7:GP0: These bits reflect the logic level on the pins <7:0>
1 = Logic-high.
0 = Logic-low.
R/W-0
GP6
GPIO – GENERAL PURPOSE I/O PORT REGISTER (ADDR 0x09)
W = Writable bit
‘1’ = Bit is set
R/W-0
GP5
R/W-0
GP4
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
MCP23008/MCP23S08
R/W-0
GP3
R/W-0
GP2
x = Bit is unknown
R/W-0
GP1
DS21919E-page 19
R/W-0
GP0
bit 0