M48Z58Y-70MH1F

Memory IC Overview

The M48Z58Y-70MH1F is a non-volatile static RAM (NVRAM) device manufactured by STMicroelectronics. It provides a memory capacity of 64 Kbit, organized as 8K words by 8 bits. The component operates with a maximum access time of 70 ns and supports a supply voltage range of 4.5 V to 5.5 V. It features integrated power-fail deselect circuitry and battery control logic on a single die. The device is housed in a 28-SOIC package with a Snaphat socket option and functions within an operating temperature range of 0°C to 70°C.

Memory IC Feature Summary

• Integrates power-fail deselect circuitry and battery control logic on a single die
• Provides non-volatile data retention without external backup power requirements during normal operation
• Supports parallel interface for standard SRAM compatibility

Memory IC Applications

• Industrial control systems requiring persistent configuration storage
• Embedded systems needing reliable data retention during power transitions
• Consumer electronics utilizing Timekeeper-compatible architectures

Memory IC Procurement Notes

Verify the specific suffix 'H1F' against the manufacturer's current datasheet to confirm package details and RoHS compliance status. Ensure the design accommodates the required 4.5V to 5.5V supply voltage range. Confirm that the 70ns access time meets system timing requirements. Check for any obsolescence notices or alternative recommendations from STMicroelectronics before finalizing procurement plans.

Memory IC Selection Notes

Select this component when a parallel interface NVRAM solution is required with integrated battery management. It is suitable for applications replacing standard SRAM where data persistence across power cycles is critical. Consider the 28-SOIC package dimensions and Snaphat socket compatibility for board layout. Evaluate the 3mA maximum current consumption against system power budgets.

Memory IC Part Context

This part belongs to the M48Z58/Y ZEROPOWER RAM family from STMicroelectronics. These devices combine SRAM speed with non-volatile storage capabilities. The series is designed to simplify system design by eliminating the need for complex external battery switching circuits. It serves as a drop-in replacement for volatile SRAM in many legacy and modern embedded designs.

Memory IC Replacement Considerations

Check for direct pin-to-pin replacements within the M48T58 or M48Z58 series if different access times or packages are needed. Verify compatibility with existing Snaphat battery modules such as the M4T28-BR12SH1 or M4T32-BR12SH1 for proper power management integration.