MCP23S08-E/P Microchip Technology, MCP23S08-E/P Datasheet - Page 15
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MCP23S08-E/P
Manufacturer Part Number
MCP23S08-E/P
Description
IC I/O EXPANDER SPI 8B 18DIP
Manufacturer
Microchip Technology
Specifications of MCP23S08-E/P
Package / Case
18-DIP (0.300", 7.62mm)
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
Through Hole
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
Through Hole
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
GPIODM-KPLCD - BOARD DEMO LCD GPIO EXP KEYPAD
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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:
© 2005 Microchip Technology Inc.
bit 7-0
INTERRUPT FLAG (INTF)
REGISTER
INTF – INTERRUPT FLAG REGISTER (ADDR 0x07)
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.
Legend:
R = Readable bit
- n = Value at POR
bit 7
INT7
R-0
INT6
R-0
INT5
R-0
W = Writable bit
‘1’ = Bit is set
MCP23008/MCP23S08
INT4
R-0
Note:
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
INT3
R-0
INTF will always reflect the pin(s) that
have an interrupt condition. For example,
one pin causes an interrupt to occur and is
captured in INTCAP and INF. If, before
clearing the interrupt, another pin changes
which would normally cause an interrupt, it
will be reflected in INTF, but not INTCAP.
INT2
R-0
x = Bit is unknown
INT1
R-0
DS21919B-page 15
INT0
R-0
bit 0