M48Z58Y-70MH1E

Memory IC Overview

The M48Z58Y-70MH1E is a non-volatile static RAM integrated circuit manufactured by STMicroelectronics. It features a storage capacity of 64 kbit organized as 8k x 8 bits with an 8-bit data bus width. The device operates within a supply voltage range of 4.5 V to 5.5 V and has a maximum access time of 70 ns. It utilizes a parallel interface and is housed in a 28-SOH surface-mount package designed for SNAPHAT socket compatibility. The component supports through-hole or surface-mount installation styles depending on the specific variant configuration, with a maximum operating temperature of +70°C.

Memory IC Feature Summary

• Integrates power-fail deselect circuitry and battery control logic on a single die for non-volatility.
• Provides automatic write protection during power failure events to preserve data integrity.
• Compatible with SNAPHAT housing for direct connection to separate lithium battery modules.

Memory IC Applications

• Battery-backed memory solutions requiring non-volatile data retention.
• Systems needing pin-compatible replacement for standard JEDEC SRAMs.
• Embedded applications utilizing SNAPHAT battery integration.

Memory IC Procurement Notes

Verify the exact package type and battery housing requirements before procurement. Confirm that the SNAPHAT housing is ordered separately if using the SOIC variant. Check for end-of-life status or obsolescence notices from the manufacturer. Ensure compatibility with existing PCB footprints designed for 28-pin SOH packages. Validate supply chain authenticity through authorized distributors.

Memory IC Selection Notes

Select this component when a non-volatile SRAM solution with integrated power-fail detection is required. Consider the 70 ns access speed for system timing constraints. Evaluate the need for external battery management versus integrated SNAPHAT compatibility. Compare against other M48Z series variants for different storage densities or package options.

Memory IC Part Context

This part belongs to the M48Z58Y series of ZEROPOWER SRAMs. These devices are designed to offer the functionality of volatile SRAM with the persistence of non-volatile memory. The series typically includes various package options such as DIP and SOIC to accommodate different manufacturing processes.

Memory IC Replacement Considerations

Direct substitutes may include other M48Z58Y variants with different suffixes indicating package or temperature variations. Verify electrical parameters and pinout compatibility before substitution. Consult official cross-reference lists for approved replacements.