MCP23S17

IO expander / level shift

MCP23S17 16-bit SPI I/O expander (28-pin DIP) — two 8-bit ports (GPA/GPB) with interrupts.

In stock

Specifications

No specs listed.

Pin	Name	Functions	Notes
1	GPB0	GPIO	Port B0
2	GPB1	GPIO	Port B1
3	GPB2	GPIO	Port B2
4	GPB3	GPIO	Port B3
5	GPB4	GPIO	Port B4
6	GPB5	GPIO	Port B5
7	GPB6	GPIO	Port B6
8	GPB7	GPIO	Port B7
9	VDD	POWER	Supply
10	VSS	GND	Ground
11	CS	SPI	Chip select
12	SCK	SPI	SPI clock
13	SI	SPI	MOSI
14	SO	SPI	MISO
15	A0	GPIO	Address 0
16	A1	GPIO	Address 1
17	A2	GPIO	Address 2
18	RESET	GPIO	Reset
19	INTB	GPIO	Port B interrupt
20	INTA	GPIO	Port A interrupt
21	GPA0	GPIO	Port A0
22	GPA1	GPIO	Port A1
23	GPA2	GPIO	Port A2
24	GPA3	GPIO	Port A3
25	GPA4	GPIO	Port A4
26	GPA5	GPIO	Port A5
27	GPA6	GPIO	Port A6
28	GPA7	GPIO	Port A7

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MCP23S17

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