MCP79511T-I/MN

Real Time Clock Overview

The MCP79511T-I/MN is a calendar real-time clock (RTC) from Microchip Technology, housed in a 10-pin WFDFN package. It supports SPI and I2C bus interfaces with a supply voltage range of 1.8 V to 3.6 V. The device includes 1 kB of EEPROM and 64 bytes of SRAM for user data storage. It features an integrated EUI-48 identifier and operates within a temperature range of -40°C to +85°C.

Real Time Clock Feature Summary

• Dual interface support: Serial Peripheral Interface (SPI) and I2C
• Integrated 1 kB EEPROM and 64-byte SRAM
• Built-in EUI-48 unique identifier
• Calendar functionality with leap-year compensation

Real Time Clock Applications

• General-purpose real-time clocking in embedded systems
• Data logging applications requiring non-volatile memory
• Industrial devices operating in extended temperature ranges

Real Time Clock Procurement Notes

Verify the suffix 'MN' corresponds to the WFDFN10_EP package and 'T' indicates tape-and-reel packaging. Confirm the '-I' designation matches the industrial temperature range (-40°C to +85°C). Ensure compatibility with system voltage levels between 1.8 V and 3.6 V before procurement.

Real Time Clock Selection Notes

Select this component when both SPI and I2C connectivity are required alongside onboard data storage. The 1 kB EEPROM provides sufficient space for configuration or log data. Compare against the MCP79521 series if higher EEPROM capacity is needed, or the MCP79510 if SRAM is not required.

Real Time Clock Part Context

This part belongs to the MCP795xx family of RTCs. It shares functional similarities with the MCP79511-I/MS but differs in package type (WFDFN vs. MSOP) and reel packaging. It complements other variants like the MCP79520T-I/MN which offers increased EEPROM capacity.

Real Time Clock Replacement Considerations

The MCP79511-I/MS is a pin-compatible alternative in MSOP packaging. For higher storage needs, consider the MCP79521T-I/MN. Verify that any substitute maintains the same voltage range and temperature specifications.