MCP23018-E/SP Microchip Technology, MCP23018-E/SP Datasheet - Page 31
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MCP23018-E/SP
Manufacturer Part Number
MCP23018-E/SP
Description
IC I/O EXPANDER I2C 16B 28SDIP
Manufacturer
Microchip Technology
Datasheet
1.MCP23018-ESO.pdf
(56 pages)
Specifications of MCP23018-E/SP
Package / Case
28-DIP (0.300", 7.62mm)
Interface
I²C
Number Of I /o
16
Interrupt Output
Yes
Frequency - Clock
3.4MHz
Voltage - Supply
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Through Hole
Logic Family
MCP23018
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
3.4 MHz
Mounting Style
Through Hole
Output Current
25 mA
Output Voltage
1.8 V to 4.5 V
Chip Configuration
16 Bit
Bus Frequency
3.4MHz
Ic Interface Type
I2C
No. Of I/o's
16
Supply Voltage Range
1.8V To 5.5V
Digital Ic Case Style
DIP
No. Of Pins
28
Filter Terminals
DIP
Rohs Compliant
Yes
Delay Time
50ns
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCP23018-E/SP
Manufacturer:
Microchip
Quantity:
341
1.7.6
There are two possible configurations to cause
interrupts (configured via INTCON):
1.
2.
See
on interrupt operations.
© 2008 Microchip Technology Inc.
Pins configured for interrupt-on-pin-change
will cause an interrupt to occur if a pin changes
to the opposite state. The default state is reset
after an interrupt occurs. For example, an
interrupt occurs by an input changing from 1 to
0. The new initial state for the pin is a logic 0.
Pins configured for interrupt-on-change from
register value will cause an interrupt to occur if
the corresponding input pin differs from the
register bit. The interrupt condition will remain as
long as the condition exists, regardless if the
INTAP or GPIO is read.
Figure 1-11
INTERRUPT CONDITIONS
and
Figure 1-12
for more information
MCP23018/MCP23S18
FIGURE 1-11:
FIGURE 1-12:
GP:
GP2
INT
Port value
is captured
into INTCAP
GPx
INT
Port value
is captured
into INTCAP
7
X
6
X
ACTIVE
ACTIVE
5
X
INTERRUPT-ON-PIN-
CHANGE
Read GPIO
or INTCAP
INTERRUPT-ON-CHANGE
FROM REGISTER
DEFAULT
DEFVAL
4
X
(INT clears only if interrupt
condition does not exist.)
3
X
Read GPIO
or INTCAP
ACTIVE
2
1
DS22103A-page 31
Port value
is captured
into INTCAP
ACTIVE
1
X
0
X