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ST Microelectronics

M40Z300MH1

NVRAM Supervisor · SOH-28 · Interface
Part Status: Obsolete In demand
Data last refreshed Jul 30, 2026
Manufacturer
ST Microelectronics
Mfr Part #
M40Z300MH1
Series
M40Z300
Category
NVRAM Supervisor
Datasheet
View datasheet ↗
Availability & Pricing
Unit PriceRequest a Quote
Sourcing channels8
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Product Attributes

Electrical & Parametric
Supply Voltage2.7V-3.6V or 4.5V-5.5V
Physical & Thermal
Package / CaseSOH-28
Mounting TypeSurface Mount
SeriesM40Z300
Operating Temperature-40°C ~ 85°C
Classification & Lifecycle
CategoryNVRAM Supervisor
TypeInterface
Part StatusObsolete

NVRAM supervisor for external SRAM with battery backup and power-fail detection

Environmental & Export Classifications

RoHS Status
RoHS Compliant

Availability & Sourcing

8 sources
SourceMfrQtyDate CodeConditionStatus
Live ST MICRO 82 0325 — Live RFQ
Live STM 1000 99+ — Live RFQ
Live ST 585 99+ — Live RFQ
Live ST 292 0001+ — Live RFQ
Market ST MICRO 82 0325 — Available RFQ
Market STM 1000 99+ — Available RFQ
Market ST 585 99+ — Available RFQ
Market ST 292 0001+ — Available RFQ

ZDI Stock — in our warehouse · Market — offers available through our sourcing network · Live — recent offers from our sourcing network.

Part Activity

recent searches, RFQs & offers
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M40Z300MH1 viewed on the web · Web User
M40Z300MH1 viewed on the web · Web User
M40Z300MH1 viewed on the web · Web User
M40Z300MH1 viewed on the web · Web User
M40Z300MH1 viewed on the web · Web User
M40Z300MH1 viewed on the web · Web User
M40Z300MH1 viewed on the web · Web User

Recent search and sourcing activity for M40Z300MH1.

Engineering FAQ

M40Z300MH1 is marked Obsolete — how does ZDI assure authenticity?
Obsolete and end-of-life parts carry elevated counterfeit risk, which is exactly why ZDI routes every lot through the full EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with source-country supplier vetting and full lot traceability before release.
What are the key specifications of M40Z300MH1?
Supply Voltage: 2.7V-3.6V or 4.5V-5.5V.
What package is M40Z300MH1 supplied in?
M40Z300MH1 is supplied in the SOH-28 package, surface mount, rated -40°C ~ 85°C.
Can ZDI source M40Z300MH1 beyond the quantities shown?
Yes — ZD Integrated Circuits specializes in sourcing hard-to-find, obsolete, and excess electronic components through its global network, with counterfeit-avoidance inspection on every lot. Submit an RFQ with your target quantity for availability and pricing.

Documents & Media

Quality & Counterfeit Avoidance

ISO 9001 ERAI Member ESD Certified GIDEP Participant ZDI EQuality Process CAGE Code 1V8K2

ZD Integrated Circuits operates an ISO 9001-certified quality system incorporating JEDEC-standard process-control elements. In an era of global sourcing and internet procurement, standards compliance alone no longer assures component authenticity — so ZDI pioneered a multi-layered counterfeit-avoidance program: supplier analysis at the source-country level, detailed component analysis, defined inspection standards for all incoming devices, and stringent supplier rating and review. These programs let ZDI guarantee the integrity and the source of every component it ships.

Every lot moves through ZDI's EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with Quality-Manager disposition before release. Nonconforming material is quarantined; conforming material is warehoused or shipped.

✓Multi-stage EQuality Process™ inspection (QI-1 · QI-2/camera · QI-3)
✓Source-country supplier analysis, rating & review
✓Incoming inspection, RoHS verification, bake, full lot traceability
✓ESD-controlled handling · authentic parts guaranteed

M40Z300MH1 is marked Obsolete. Obsolete and end-of-life parts carry elevated counterfeit risk — exactly why ZDI routes them through the full EQuality Process™ with source-country supplier vetting, inspection, and traceability.

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