MCP23S08-E/P Microchip Technology, MCP23S08-E/P Datasheet - Page 7
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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
1.5
The GPIO module contains the data port (GPIO),
internal pull up resistors and the Output Latches
(OLAT).
Reading the GPIO register reads the value on the port.
Reading the OLAT register only reads the OLAT, not
the actual value on the port.
Writing to the GPIO register actually causes a write to
the OLAT. Writing to the OLAT register forces the
associated output drivers to drive to the level in OLAT.
Pins configured as inputs turn off the associated output
driver and put it in high-impedance.
TABLE 1-3:
© 2005 Microchip Technology Inc.
IODIR
IPOL
GPINTEN
DEFVAL
INTCON
IOCON
GPPU
INTF
INTCAP
GPIO
OLAT
* Not used on the MCP23008.
Register
Name
GPIO Port
Address
(hex)
0A
00
01
02
03
04
05
06
07
08
09
CONFIGURATION AND CONTROL REGISTERS
GPINT7
DEF7
IOC7
ICP7
INT7
bit 7
PU7
GP7
OL7
IO7
IP7
—
GPINT6
DEF6
IOC6
INT6
ICP6
bit 6
GP6
PU6
OL6
IO6
IP6
—
GPINT5
SREAD
DEF5
IOC5
ICP5
bit 5
INT5
PU5
GP5
OL5
IO5
IP5
DISSLW
GPINT4
DEF4
IOC4
ICP4
INT4
bit 4
PU4
GP4
OL4
IO4
IP4
MCP23008/MCP23S08
1.6
The Configuration and Control blocks contain the
registers as shown in Table 1-3.
GPINT3
HAEN *
DEF3
IOC3
INT3
ICP3
bit 3
GP3
PU3
OL3
IO3
IP3
Configuration and Control
Registers
GPINT2
DEF2
IOC2
ODR
ICP2
bit 2
INT2
PU2
GP2
OL2
IO2
IP2
GPINT1
INTPOL
DEF1
IOC1
INT1
ICP1
bit 1
PU1
GP1
OL1
IO1
IP1
GPINT0
DEF0
IOC0
INTO
ICP0
bit 0
GP0
PU0
OL0
IO0
IP0
—
DS21919B-page 7
1111 1111
0000 0000
0000 0000
0000 0000
0000 0000
--00 000-
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
POR/RST
value