M48T35Y-70MH6F

Real Time Clock Overview

The M48T35Y-70MH6F is a Real-Time Clock (RTC) manufactured by STMicroelectronics, featuring a parallel bus interface. It provides 256 kB of storage capacity and supports YY-MM-DD-dd date formats alongside HH:MM:SS (24 hr) time formats. The device operates within a supply voltage range of 4.5 V to 5.5 V and functions at temperatures between 0°C and +70°C. Packaged in an SOX-28 form factor for SMD/SMT installation, it includes backup switching capabilities and integrates calendar, clock, non-volatile timekeeping, and watchdog timer functions.

Real Time Clock Feature Summary

• Parallel bus interface with 256 kB storage capacity
• Integrated calendar, clock, NV timekeeping, and watchdog timer
• Backup switching capability for continuous operation
• Operates on 4.5 V to 5.5 V supply voltage

Real Time Clock Applications

• Industrial control systems requiring precise timekeeping
• Data logging equipment needing non-volatile memory
• Embedded devices with parallel interface constraints

Real Time Clock Procurement Notes

Verify the specific suffix 'H6F' against official STMicroelectronics documentation to confirm package type and temperature grade variations. Ensure compatibility with system power rails (4.5V–5.5V) and parallel bus timing requirements before integration. Check RoHS compliance status via manufacturer datasheets.

Real Time Clock Selection Notes

Select this component when a parallel interface RTC with substantial embedded RAM (256 kB) is required. Compare against I2C or SPI alternatives if board space or pin count is limited. Verify that the SOX-28 surface-mount package fits the PCB layout constraints and thermal management requirements for the 0°C to +70°C operating range.

Real Time Clock Part Context

This part belongs to the M48T35Y series of real-time clocks from STMicroelectronics. The series typically offers battery-backed SRAM combined with RTC functionality, designed for applications requiring persistent time and data storage without external components.

Real Time Clock Replacement Considerations

Direct replacements may include other parts from the M48T35Y family with different suffixes indicating package or temperature variations. Cross-reference with M48T35Y-70MH1F for similar specifications but verify package differences (SOX-28 vs others).

Real Time Clock FAQ

What is the maximum operating temperature for the M48T35Y-70MH6F?

The maximum operating temperature is +70°C.

Does the M48T35Y-70MH6F support automatic power-fail protection?

Yes, the device features automatic power-fail chip deselect and write protection capabilities.

What is the storage capacity of this RTC?

The RTC has a storage capacity of 256 kB.