License

Public Domain

Input expander

10 months ago 336
  • Description
  • Documents
  • BOM
  • Attachments
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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

Documents

Schematic

PCB

BOM

ID Name Designator Footprint Quantity Manufacturer Part Manufacturer Supplier Supplier Part Price LCSC Assembly Mounted LCSC
1 MCP23017-E/SO DD1 SOIC28 1 MCP23017-E/SO LCSC
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 AMS1117-3.3 AMS LCSC C6186
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 VDG/S-03HG-R LCSC LCSC C52648
10 HDR-IDC-2.54-2X12P XS1 HDR-IDC-2.54-2X12P 1 HDR-IDC-2.54-2X12P LCSC LCSC C9137
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 1 204-10UYC/S530-A3 EVERLIGHT LCSC C73643
15 560 R37 0805 1

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