MCP23S17-E/SS Microchip Technology, MCP23S17-E/SS Datasheet - Page 12

• Manufacturer Part Number: MCP23S17-E/SS
• Description: IC I/O EXPANDER SPI 16B 28SSOP
• Manufacturer: Microchip Technology

Specifications of MCP23S17-E/SS

• Package / Case: 28-SSOP
• 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
• Logic Family: MCP23S17
• 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
• 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

MCP23017/MCP23S17
1.6.1
Controls the direction of the data I/O.
When a bit is set, the corresponding pin becomes an
input. When a bit is clear, the corresponding pin
becomes an output.
REGISTER 1-1:
DS21952B-page 12
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
R/W-1
IO7
I/O DIRECTION REGISTER
IO7:IO0: These bits control the direction of data I/O <7:0>
1 = Pin is configured as an input.
0 = Pin is configured as an output.
R/W-1
IO6
IODIR – I/O DIRECTION REGISTER (ADDR 0x00)
W = Writable bit
‘1’ = Bit is set
R/W-1
IO5
R/W-1
IO4
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-1
IO3
R/W-1
IO2
© 2007 Microchip Technology Inc.
x = Bit is unknown
R/W-1
IO1
R/W-1
IO0
bit 0