M48T35Y-70MH6E

Real Time Clock Overview

The M48T35Y-70MH6E is a Real Time Clock (RTC) integrated circuit manufactured by STMicroelectronics, housed in a 28-pin Plastic Dual In-line Package (PDIP). It features an 8-bit parallel direct address bus interface and operates within a commercial temperature range of 0°C to +70°C. The device requires a supply voltage between 4.5 V and 5.5 V. Key functional capabilities include calendar and clock functions with non-volatile timekeeping, supporting date formats of YY-MM-DD-dd and time formats of HH:MM:SS (24-hour mode).

Real Time Clock Feature Summary

• Integrated Real Time Clock with Calendar functionality providing non-volatile timekeeping.
• Parallel direct address bus interface for microprocessor communication.
• Supports YY-MM-DD-dd date format and HH:MM:SS (24 hr) time format.
• Commercial grade operation with a temperature range of 0°C to +70°C.

Real Time Clock Applications

• Industrial systems requiring precise time stamping and calendar tracking.
• Embedded controllers needing non-volatile real-time data retention.
• General purpose electronic devices utilizing parallel bus architectures.

Real Time Clock Procurement Notes

Verify the package type against project requirements, as datasheets indicate both PDIP and SOIC variants exist within the M48T35Y series. Confirm the specific suffix 'H6E' corresponds to the desired plastic DIP configuration. Ensure the parallel interface compatibility matches the target system's bus architecture before procurement.

Real Time Clock Selection Notes

Select this component when a parallel interface RTC is required instead of I2C or SPI alternatives. The 28-pin PDIP package is suitable for through-hole assembly processes. Verify that the 4.5V to 5.5V operating voltage aligns with the system power rails. Consider the commercial temperature range limits for environmental suitability.

Real Time Clock Part Context

This part belongs to the M48T35Y family of Real Time Clocks from STMicroelectronics. The family includes variations such as the M48T35Y-70MH1F in SOIC packages. These devices are designed to provide accurate timekeeping and calendar functions in battery-backed or main-power-supplied applications.

Real Time Clock Replacement Considerations

The M48T35Y-70MH1F serves as a pin-compatible alternative within the same family but utilizes an SOIC-28 surface mount package rather than the PDIP-28 form factor. Ensure mechanical clearance and mounting method differences are addressed during substitution.