M40Z300WMH6E

Supervisors Overview

The M40Z300WMH6E is a single-channel SRAM supervisor IC manufactured by STMicroelectronics, designed for non-volatile RAM protection. It operates within a supply voltage range of 2.7 V to 3.6 V and features a 2.6 V threshold voltage. The device utilizes an open-drain or open-collector output with low-active reset signaling. It is housed in a 28-SOH surface-mount package with snaphat sockets and supports an operating temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Provides dedicated power-fail detection for non-volatile memory systems
• Features open-drain or open-collector output configuration
• Designed specifically for SRAM supervision applications

Supervisors Applications

• SRAM power management circuits
• Non-volatile memory backup systems
• Embedded system power monitoring

Supervisors Procurement Notes

Verify component authenticity through authorized STMicroelectronics distributors due to discontinued status. Confirm RoHS3 compliance and check for alternative packages such as the M40Z300WMH6F variant if lead times are critical. Ensure the 28-SOH package compatibility with existing PCB footprints before procurement.

Supervisors Selection Notes

Select this component when a dedicated supervisor for up to eight LPSRAMs is required. The fixed 2.6 V threshold suits standard 3V logic families. Consider the 28-pin SOH package constraints and verify that the open-drain output aligns with the target microcontroller's input requirements.

Supervisors Part Context

This part belongs to the M40Z300 series of NVRAM supervisors. It complements other variants like the M40SZ100WMQ6E, which offers different pin counts and voltage ranges. The series focuses on protecting data integrity during power transitions in embedded storage environments.

Supervisors Replacement Considerations

The M40Z300WMH6F is a documented substitute with identical electrical characteristics but potentially different packaging or reel specifications. Verify pinout compatibility before substitution.