# MCP7940M-I/SN (Component) ## Description Real Time Clock (RTC) IC Clock/Calendar 64B I²C, 2-Wire Serial 8-SOIC (0.154", 3.90mm Width) #commonpartslibrary #integratedcircuit #realtimeclock #calendar ## Component Details - **Owner:** adrian95 - **Created:** 11/14/2022 - **Last Updated:** 6/28/2023 - **Visibility:** Public - **Datasheet URL:** https://ww1.microchip.com/downloads/en/DeviceDoc/MCP7940M-Low-Cost%20I2C-RTCC-with-SRAM-20002292C.pdf - **Manufacturer Part Number:** MCP7940M-I/SN - **Part Type:** Integrated Circuit - **License:** https://creativecommons.org/licenses/by/4.0/ - **Manufacturer Name:** Microchip Technology - **Used in:** 11 projects ## Distributor Pricing (qty 1) *Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.* | Distributor | Unit Price (qty 1) | Stock | |------------|--------------------|-------| | [Arrow](https://www.arrow.com/en/products/mcp7940m-isn/microchip-technology?utm_currency=USD&region=nac) | $0.6092 | 301 | | [Digi-Key](https://www.digikey.com/en/products/detail/microchip-technology/MCP7940M-I-SN/3131733) | $0.67 | 1.8K | | [LCSC](https://www.lcsc.com/product-detail/C152184.html) | $1.1971 | 17 | | [Mouser](https://www.mouser.com/ProductDetail/Microchip-Technology/MCP7940M-I-SN?qs=V1AtWP4RhX7eS%2F98Wq7d7Q%3D%3D) | $0.67 | 900 | | [Verical](https://www.verical.com/pd/microchip-technology-real-time-clock-MCP7940M-I-SN-565942) | N/A | N/A | - **Part Type:** Integrated Circuits - **Sub-Type:** Logic - **Manufacturer:** Microchip - **MPN:** MCP7940M-I/SN - **Mount Type:** Wire - **Package / Case Code:** 8-SOIC - **Pin Count:** 7 - **Logic Function:** AND ## Pins | Pin | Name | Type | |-----|------|------| | 1 | X1 | | | 2 | X2 | | | 4 | VSS | | | 5 | SDA | | | 6 | SCL | | | 7 | MFP | | | 8 | VCC | | --- *Generated from [https://www.flux.ai/adrian95/mcp7940m-isn](https://www.flux.ai/adrian95/mcp7940m-isn)*