Name: Adafruit GPIO Expander Bonnet - 16 Additional I/O over I2C
Brand: Adafruit

Parts › Interface & Expansion › I/O Expanders & Multiplexers

ADA4132 · AdafruitActive

Adafruit GPIO Expander Bonnet - 16 Additional I/O over I2C photo

Adafruit GPIO Expander Bonnet - 16 Additional I/O over I2C illustration

Adafruit product #4132. Interfaces: I2C.

Part number	ADA4132
Manufacturer	Adafruit
Category	Interface & Expansion › I/O Expanders & Multiplexers
Pins	105

Adafruit GPIO Expander Bonnet - 16 Additional I/O over I2C pinout

Pin	Name	Type
1	5.0V	bidirectional
2	5.0V	bidirectional
3	GND	ground
4	TXD	bidirectional
5	RXD	bidirectional
6	GPIO18	bidirectional
7	GND	ground
8	GPIO23	bidirectional
9	GPIO24	bidirectional
10	GND	ground
11	GPIO25	bidirectional
12	SPI_CE0	bidirectional
13	SPI_CE1	bidirectional
14	EECLK	bidirectional
15	GND	ground
16	GPIO12	bidirectional
17	GND	ground
18	GPIO16	bidirectional
19	GPIO20	bidirectional
20	GPIO21	bidirectional
21	3.3VPI	bidirectional
22	SDA_3V	bidirectional
23	SCL_3V	bidirectional
24	GPIO4	bidirectional
25	GND	ground
26	GPIO17	bidirectional
27	GPIO27	bidirectional
28	GPIO22	bidirectional
29	3.3VPI	bidirectional
30	SPI_MOSI	bidirectional
31	SPI_MISO	bidirectional
32	SPI_SCLK	bidirectional
33	GND	ground
34	EEDATA	bidirectional
35	GPIO5	bidirectional
36	GPIO6	bidirectional
37	GPIO13	bidirectional
38	GPIO19	bidirectional
39	GPIO26	bidirectional
40	GND	ground
41	SDA_3V	bidirectional
42	SCL_3V	bidirectional
43	GPIO20	bidirectional
44	GPIO21	bidirectional
45	TXD	bidirectional
46	RXD	bidirectional
47	GPIO4	bidirectional
48	GPIO17	bidirectional
49	GPIO18	bidirectional
50	GPIO27	bidirectional
51	GPIO22	bidirectional
52	GPIO23	bidirectional
53	GPIO24	bidirectional
54	GPIO25	bidirectional
55	SPI_MOSI	bidirectional
56	SPI_MISO	bidirectional
57	SPI_SCLK	bidirectional
58	SPI_CE0	bidirectional
59	SPI_CE1	bidirectional
60	GPIO5	bidirectional
61	GPIO6	bidirectional
62	GPIO12	bidirectional
63	GPIO13	bidirectional
64	GPIO16	bidirectional
65	GPIO19	bidirectional
66	GND	ground
67	GND	ground
68	GND	ground
69	GND	ground
70	GND	ground
71	GND	ground
72	GND	ground
73	GND	ground
74	GPB0	bidirectional
75	GPB1	bidirectional
76	GPB2	bidirectional
77	GPB3	bidirectional
78	GPB4	bidirectional
79	GPB5	bidirectional
80	GPB6	bidirectional
81	GPB7	bidirectional
82	GND	ground
83	5.0V	bidirectional
84	3.3V	power
85	INTB	bidirectional
86	GND	ground
87	GND	ground
88	GND	ground
89	GND	ground
90	GND	ground
91	GND	ground
92	GND	ground
93	GND	ground
94	GND	ground
95	5.0V	bidirectional
96	3.3V	power
97	INTA	bidirectional
98	GPA0	bidirectional
99	GPA1	bidirectional
100	GPA2	bidirectional
101	GPA3	bidirectional
102	GPA4	bidirectional
103	GPA5	bidirectional
104	GPA6	bidirectional
105	GPA7	bidirectional

Schematic symbol and footprint

Footprint: Adafruit GPIO Expander Bonnet with STEMMA QT (header pads) — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.