3 V NVRAM supervisor for LPSRAM

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  • The M40SZ100W NVRAM controller is a self-contained device which converts a standard low-power SRAM into a non-volatile memory. A precision voltage reference and comparator monitors the VCCinput for an out-of-tolerance condition.

    When an invalid VCCcondition occurs, the conditioned chip enable output (ECON)is forced inactive to write protect the stored data in the SRAM. During a power failure, the SRAM is switched from the VCCpin to the external battery to provide the energy required for data retention. On a subsequent power-up, the SRAM remains write-protected until a valid power condition returns.

    Key Features

    • Convert low power SRAMs into NVRAMs
    • 3 V operating voltage
    • Precision power monitoring and power switching circuitry
    • Automatic write-protection when VCCis out-of-tolerance
    • Choice of supply voltage and power-fail deselect voltage:
      • VCC= 2.7 to 3.6 V; 2.55 V ≤ VPFD≤ 2.70 V
    • Reset output (RST) for power on reset
    • 1.25 V reference (for PFI/PFO)
    • Less than 15 ns chip enable access propagation delay
    • Battery low pin (BL)
    • RoHS compliant
      • Lead-free second level interconnect

Circuit Diagram

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Part Number
Package
Packing Type
RST Threshold (V) (typ)
Temperature (°C) Marketing Status
Budgetary Price (US$)*
Quantity
More info
Order from Distributors
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min
max
M40SZ100WMQ6F SO-16 Tape And Reel 2.6 -40 85
Active
3.059 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

MOROCCO

Check Availability

Distributor availability ofM40SZ100WMQ6F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4255 1 Order Now
ARROW EUROPE 2500 0 Order Now
Newark Element14 AMERICA 625 0 Order Now
MOUSER WORLDWIDE 2335 1 Order Now

Distributor reported inventory date: 2019-11-29

Distributor Name

DIGIKEY

Stock

4255

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

2500

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

625

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

2335

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-11-29

Buy now

M40SZ100WMQ6F

Package

SO-16

Packing Type

Tape And Reel

Unit Price (US$)

3.059*

Distributor availability ofM40SZ100WMQ6F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4255 1 Order Now
ARROW EUROPE 2500 0 Order Now
Newark Element14 AMERICA 625 0 Order Now
MOUSER WORLDWIDE 2335 1 Order Now

Distributor reported inventory date: 2019-11-29

Distributor Name

DIGIKEY

Stock

4255

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

2500

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

625

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

2335

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-11-29

RST Threshold (V) (typ)

2.6

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Unit Price (US$)

3.059

Quantity

10000

ECCN (US)

EAR99

Country of Origin

MOROCCO

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

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00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS2148
      3 V NVRAM supervisor for LPSRAM
      4.0
      471.29 KB
      PDF
      DS2148

      3 V NVRAM supervisor for LPSRAM

    • Description Version Size Action
      AN1336
      Power-fail comparator for NVRAM supervisory devices
      2.0
      127.81 KB
      PDF
      AN1012
      Predicting the battery life and data retention period of NVRAMs and serial RTCs
      4.1
      439.45 KB
      PDF
      AN1000
      Reduced footprint ZEROPOWER® and TIMEKEEPER® supervisor surface-mount solution
      2.0
      62.06 KB
      PDF
      AN1336

      Power-fail comparator for NVRAM supervisory devices

      AN1012

      Predicting the battery life and data retention period of NVRAMs and serial RTCs

      AN1000

      Reduced footprint ZEROPOWER® and TIMEKEEPER® supervisor surface-mount solution

HW Model, CAD Libraries & SVD

    • Description Version Size Action
      Ibis model 1.0
      9.03 KB
      ZIP
      Ibis model 1.0
      9.22 KB
      ZIP

      Ibis model

      Ibis model

Publications and Collaterals

    • Description Version Size Action
      Resets and supervisors - portfolio overview 1.0
      1.31 MB
      PDF

      Resets and supervisors - portfolio overview

Quality & Reliability

    • Description Version Size Action
      Products Underwriter Laboratories (UL) Information 2.1
      543.21 KB
      PDF

      Products Underwriter Laboratories (UL) Information

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
M40SZ100WMQ6F
Active
SO-16 Industrial Ecopack1 (*)

M40SZ100WMQ6F

Package:

SO-16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack1 (*)

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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