MCP23017-E/SP Microchip Technology, MCP23017-E/SP Datasheet - Page 20

• Manufacturer Part Number: MCP23017-E/SP
• Description: IC I/O EXPANDER I2C 16B 28SDIP
• Manufacturer: Microchip Technology
• Type: I/O Expanderr

Specifications of MCP23017-E/SP

• Package / Case: 28-DIP (0.300", 7.62mm)
• Interface: I²C
• Number Of I /o: 16
• Interrupt Output: Yes
• Frequency - Clock: 1.7MHz
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Through Hole
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: Through Hole
• 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
1.6.8
The INTF register reflects the interrupt condition on the
port pins of any pin that is enabled for interrupts via the
GPINTEN register. A ‘set’ bit indicates that the
associated pin caused the interrupt.
This register is ‘read-only’. Writes to this register will be
ignored.
REGISTER 1-8:
DS21952B-page 20
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
INT7
R-0
INTERRUPT FLAG REGISTER
INT7:INT0: These bits reflect the interrupt condition on the port. Will reflect the change only if interrupts
are enabled (GPINTEN) <7:0>.
1 = Pin caused interrupt.
0 = Interrupt not pending.
INT6
R-0
INTF – INTERRUPT FLAG REGISTER (ADDR 0x07)
W = Writable bit
‘1’ = Bit is set
INT5
R-0
INT4
R-0
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
INT3
R-0
INT2
R-0
© 2007 Microchip Technology Inc.
x = Bit is unknown
INT1
R-0
INT0
R-0
bit 0