Input expander

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STD Input expander

License: Public Domain

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2.9k
0
0
6

Update time： 2022-05-01 07:54:17

Creation time： 2017-12-04 06:42:21

Description

This module is based on a chip MCP 23017 and is designed to increase the number of digital inputs. Communication is made on the i2c bus. The printed circuit board is designed for housing D4MG

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BOM

BOM download Purchase Parts

ID	Name	Designator	Footprint	Quantity
1	MCP23017-E/SO	DD1	SOIC28	1
2	1k	R1,R2,R3,R4,R5,R6,R7,R8,R9,R10,R11,R12,R13,R14,R15,R16,R17,R18,R19,R20,R21,R22,R23,R24,R25,R26,R27,R28,R29,R30,R31,R32	0805	32
3	0.1u	C9,C19,C20,C10,C11,C12,C13,C14,C15,C16,C1,C2,C3,C4,C5,C6,C7,C8,C21,C22,C23,C24,C25,C26,C27,C28,C29,C30,C31,C32,C33,C34,C35,C36	0805	34
4	DIODE	D1	SMA-DIODE	1
5	AMS1117-3.3	U1	SOT-223	1
6	22u	C17	CP_8X21MM	1
7	220u	C18	CP_8X21MM	1
8	DEGSON Screw Terminal 3.5mm 2P	X1,X2,X3,X4,X5,X6,X7,X8,X9,X11,X13,X14,X15,X16,X17,X18,X19,X20	1X2-3.5MM	18
9	VDG/S-03HG-R	DIP1	VDG/S-03HG-R	1
10	HDR-IDC-2.54-2X12P	XS1	HDR-IDC-2.54-2X12P	1
11	4.7k	R33,R34,R35,R36	0805	4
12	TVS-0805	TVS1,TVS2,TVS3,TVS4	TVS_SMB	4
13	PC817	OC1,OC9,OC2,OC3,OC4,OC5,OC6,OC7,OC8,OC10,OC11,OC12,OC13,OC14,OC15,OC16	Optoacoplador PC817_Layout	16
14	204-10UYC/S530-A3	LED1	LED-3MM/2.54	1
15	560	R37	0805	1