TMS320LF2407A_14 Datasheet, PDF (1/42 Pages) Texas Instruments – DSP CONTROLLERS

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 (maximum)
• 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
Package Types
MCP23017
GPB0
•1
28
GPB1
2
27
GPB2
3
26
GPB3
4
25
GPB4
5
24
GPB5
6
23
GPB6
7
22
GPB7
8
21
V_DD
9
20
V_SS
10
19
NC
11
18
SCK
12
17
SDA
13
16
NC
14
15
GPA7
GPA6
GPA5
GPA4
GPA3
GPA2
GPA1
GPA0
INTA
INTB
RESET
A2
A1
A0
SOIC
SPDIP
SSOP
• 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 QFN, 6 x 6 mm Body
• 28-pin SOIC, Wide, 7.50 mm Body
• 28-pin SPDIP, 300 mil Body
• 28-pin SSOP, 5.30 mm Body
GPB0
GPB1
GPB2
GPB3
GPB4
GPB5
GPB6
GPB7
V_DD
V_SS
CS
SCK
SI
SO
MCP23S17
•1
28
2
27
3
26
4
25
5
24
6
23
7
22
8
21
9
20
10
19
11
18
12
17
13
16
14
15
GPA7
GPA6
GPA5
GPA4
GPA3
GPA2
GPA1
GPA0
INTA
INTB
RESET
A2
A1
A0
GPB4
GPB5
GPB6
GPB7
V_DD
V_SS
NC
28 2726 2524 2322
1
21
2
20
3
19
4
5
EP
29 *
18
17
6
16
7
15
8 9 1011121314
GPA4
GPA3
GPA2
GPA1
GPA0
INTA
INTB
QFN
GPB4
GPB5
GPB6
GPB7
V_DD
V_SS
CS
28 272625242322
1
21
2
20
3
19
4
5
EP
29 *
18
17
6
16
7
15
8 9 10 11121314
GPA4
GPA3
GPA2
GPA1
GPA0
INTA
INTB
* Includes Exposed Thermal Pad; see Table 2-1.
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DS20001952C-page 1