MCP23017 Datasheet, PDF (1/48 Pages) Microchip Technology – 16-Bit I/O Expander with Serial Interface

MCP23017/MCP23S17
16-Bit I/O Expander with Serial Interface
Features
• 16-bit remote bidirectional I/O port
- I/O pins default to input
• High-speed I²C™ interface (MCP23017)
- 100 kHz
- 400 kHz
- 1.7 MHz
• High-speed SPI interface (MCP23S17)
- 10 MHz (max.)
• Three hardware address pins to allow up to eight
devices on the bus
• Configurable interrupt output pins
- Configurable as active-high, active-low or
open-drain
• INTA and INTB can be configured to operate
independently or together
• Configurable interrupt source
- Interrupt-on-change from configured register
defaults or pin changes
• Polarity Inversion register to configure the polarity
of the input port data
• External Reset input
• Low standby current: 1 µA (max.)
• Operating voltage:
- 1.8V to 5.5V @ -40°C to +85°C
- 2.7V to 5.5V @ -40°C to +85°C
- 4.5V to 5.5V @ -40°C to +125°C
Packages
• 28-pin PDIP (300 mil)
• 28-pin SOIC (300 mil)
• 28-pin SSOP
• 28-pin QFN
Package Types
PDIP,
GPB0
•1
SOIC,
SSOP
GPB1
GPB2
GPB3
2
3
4
GPB4
5
GPB5
6
GPB6
7
GPB7
8
VDD
9
VSS
10
NC
11
SCL
12
SDA
13
NC
14
28
GPA7
27
GPA6
26
GPA5
25
GPA4
24
GPA3
23
GPA2
22
GPA1
21
GPA0
20
INTA
19
INTB
18
RESET
17
A2
16
A1
15
A0
QFN
GPB4
GPB5
GPB6
GPB7
V_DD
V_SS
NC
28 2726 25242322
1
21
2
20
3
19
4 MCP23017 18
5
17
6
16
7
15
8 9 10 11121314
GPA4
GPA3
GPA2
GPA1
GPA0
INTA
INTB
PDIP,
GPB0
•1
SOIC,
GPB1
2
SSOP
GPB2
GPB3
3
4
GPB4
5
GPB5
6
GPB6
7
GPB7
8
VDD
9
VSS
10
CS
11
SCK
12
SI
13
SO
14
28
GPA7
27
GPA6
26
GPA5
25
GPA4
24
GPA3
23
GPA2
22
GPA1
21
GPA0
20
INTA
19
INTB
18
RESET
17
A2
16
A1
15
A0
QFN
GPB4
GPB5
GPB6
GPB7
V_DD
V_SS
CS
28 2726 25242322
1
21
2
20
3
19
4 MCP23S17 18
5
17
6
16
7
15
8 9 10 11121314
GPA4
GPA3
GPA2
GPA1
GPA0
INTA
INTB
© 2007 Microchip Technology Inc.
DS21952B-page 1