MCP23S08-E/SS Microchip Technology, MCP23S08-E/SS Datasheet - Page 20

• Manufacturer Part Number: MCP23S08-E/SS
• Description: IC I/O EXPANDER SPI 8B 20SSOP
• Manufacturer: Microchip Technology

Specifications of MCP23S08-E/SS

• Package / Case: 20-SSOP
• 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: SSOP
• No. Of Pins: 20
• 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

MCP23008/MCP23S08
1.6.11
The OLAT register provides access to the output
latches. A read from this register results in a read of the
OLAT and not the port itself. A write to this register
modifies the output latches that modify the pins
configured as outputs.
REGISTER 1-11:
DS21919E-page 20
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
R/W-0
OL7
OUTPUT LATCH REGISTER (OLAT)
OL7:OL0: These bits reflect the logic level on the output latch <7:0>
1 = Logic-high.
0 = Logic-low.
R/W-0
OL6
OLAT – OUTPUT LATCH REGISTER 0 (ADDR 0x0A)
W = Writable bit
‘1’ = Bit is set
R/W-0
OL5
R/W-0
OL4
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-0
OL3
R/W-0
OL2
© 2007 Microchip Technology Inc.
x = Bit is unknown
R/W-0
OL1
R/W-0
OL0
bit 0