MAX6910EO30+T

Real Time Clock Overview

The MAX6910EO30+T is an I2C-compatible real-time clock (RTC) with a microprocessor supervisor, NV RAM controller, and trickle charger. It operates on a single 2.7V to 3.3V supply or a backup battery source. The device provides timekeeping for seconds through year, including leap-year compensation up to 2100. It features 31 bytes of static RAM for scratchpad storage and supports both 12-hour and 24-hour formats. Key electrical parameters include a typical timekeeping current of less than 1µA at 3.0V, a 400kHz serial interface, and an operating temperature range of -40°C to +85°C.

Real Time Clock Feature Summary

• I2C-compatible RTC with calendar, alarm, and watchdog timer functions
• 31-byte NV SRAM with independent power-fail detection
• Built-in µP supervisor with open-drain reset output
• Programmable trickle charger for backup battery maintenance

Real Time Clock Applications

• Point-of-Sale Equipment
• Programmable Logic Controllers
• Handheld Instruments
• Medical Instrumentation

Real Time Clock Procurement Notes

Verify the 'T' suffix indicates tape-and-reel packaging when sourcing this component. Confirm that the EO30 variant corresponds to the 2.7V–3.3V operating voltage range. Ensure the supplier provides valid RoHS compliance documentation as required by the manufacturing specifications.

Real Time Clock Selection Notes

Select the MAX6910 over the MAX6909 if the application requires the integrated programmable trickle charger for battery backup management. Choose the EO30 suffix for systems requiring operation down to 2.7V. Verify that the system design accommodates the 20-pin QSOP package dimensions and thermal requirements.

Real Time Clock Part Context

This component belongs to the MAX6909/MAX6910 family of I2C-compatible real-time clocks. The MAX6910 specifically includes a trickle charger feature absent in the MAX6909. Both devices share identical pinouts, register maps, and core timing functionalities within the same product series.

Real Time Clock Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.