M48T12-70PC1

Real Time Clock Overview

The M48T12-70PC1 is a SRAM-based Real-Time Clock (RTC) manufactured by STMicroelectronics, belonging to the M48T12 series. It features a 16 Kbit memory capacity and utilizes a parallel interface for data communication. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a maximum access time of 70 ns. Designed for through-hole mounting, it is housed in a 24-pin PCDIP package with physical dimensions of 34.8 mm in length and 8.89 mm in height. The component functions reliably across an operating temperature range from 0°C to +70°C.

Real Time Clock Feature Summary

• Integrated SRAM timer with 16 Kbit non-volatile storage capacity
• Parallel bus interface supporting standard microcontroller connections
• 70 ns maximum random access time for efficient data retrieval
• Through-hole PCDIP-24 packaging suitable for industrial environments

Real Time Clock Applications

• Industrial control systems requiring precise timekeeping
• Data logging equipment needing persistent timestamp storage
• Embedded systems with parallel interface architectures

Real Time Clock Procurement Notes

Verify the specific suffix 'PC1' against the official STMicroelectronics datasheet to confirm pinout compatibility and electrical characteristics. Ensure the parallel interface requirements match the target system design. Confirm that the 4.5 V to 5.5 V supply voltage aligns with the application's power rails before procurement.

Real Time Clock Selection Notes

Select this component when a parallel interface RTC with 16 Kbit SRAM is required. Compare against the M48Z12-70PC1 if battery backup switching is not needed, as the Z-series variant lacks the integrated calendar/clock functionality. Ensure the 24-pin PCDIP form factor fits the PCB layout constraints.

Real Time Clock Part Context

This part belongs to the M48T12 family of SRAM timers. It shares the same package and interface characteristics as other members like the M48Z12 but includes dedicated real-time clock registers. The '70' indicates the 70 ns speed grade, while 'PC1' denotes the 24-pin PCDIP package type.

Real Time Clock Replacement Considerations

The M48Z12-70PC1 is a related NVRAM component in the same package but lacks RTC functionality. Verify register mapping differences if substituting with other M48 series parts. No direct cross-model substitutes are confirmed in the provided documentation.