MCP23S08 expander equivalent, 8-bit i/o expander.
* 8-Bit Remote Bidirectional I/O Port - I/O pins default to input
* High-Speed I2C Interface (MCP23008) - 100 kHz - 400 kHz - 1.7 MHz
* High-Speed SPI Interfa.
The two devices differ in the number of hardware address pins and the serial interface:
* MCP23008
.
TABLE 1-1: PINOUT DESCRIPTION
Pin Name
PDIP/ SOIC
QFN
SSOP
Pin Type
Function
SCL/SCK 1
SDA/SI
2
A2/SO
3
A1
4
A0
5
RESET
6
NC/CS
7
INT
8
VSS
9
GP0
10
GP1
11
GP2
12
GP3
13
GP4
14
GP5
15
GP6
16
GP7
17
VDD
18
N.
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