M95256-R

Active
Design Win Education

256 Kbit SPI bus EEPROM with high-speed clock

Download datasheet Order Direct
Overview
Sample & Buy
Solutions
Documentation
CAD Resources
Tools & Software
Quality & Reliability
Get Started
Partner products
Sales Briefcase

Product overview

Description

The M95256 devices are electrically erasable programmable memories (EEPROMs) organized as 32768 x 8 bits, accessed through the SPI bus.

The M95256-W can operate with a supply voltage from 2.5 V to 5.5 V, the M95256-R can operate with a supply voltage from 1.8 V to 5.5 V and the M95256-DF can operate with a supply voltage from 1.7 V to 5.5 V, over an ambient temperature range of -40 °C / +85 °C.

The M95256-DF, -DR or -DW (hereinafter referred to as M95256-Dx) offer an additional page, named the Identification page (64 bytes). The Identification page can be used to store sensitive application parameters that can be (later) permanently locked in read-only mode.

The SPI bus signals are C, D and Q, as shown in Figure 1 and Table 1. The device is selected when Chip select (S) is driven low. Communications with the device can be interrupted when the HOLD is driven low.

  • All features

    • Compatible with the serial peripheral interface (SPI) bus
    • Memory array
      • 256-Kbit (32 Kbytes) of EEPROM
      • Page size: 64 bytes
      • Additional write lockable page (Identification page)
    • Write time
      • Byte Write within 5 ms
      • Page Write within 5 ms
    • Write protect
      • quarter array
      • half array
      • whole memory array
    • High-speed clock: 20 MHz
    • Single supply voltage:
      • 2.5 V to 5.5 V for M95256-W
      • 1.8 V to 5.5 V for M95256-R
      • 1.7 V to 5.5 V for M95256-DF
    • Operating temperature range: from -40 °C up to +85 °C
    • Enhanced ESD protection
    • More than 4 million Write cycles
    • More than 200-year data retention
    • Packages
      • SO8N (ECOPACK2)
      • TSSOP8 (ECOPACK2)
      • UFDFPN8 (ECOPACK2)
      • WLCSP8 (ECOPACK2)

Circuit Diagram

EDA Symbols, Footprints and 3D Models

STMicroelectronics - M95256-R

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Symbols

Symbols

Footprints

Footprints

3D model

3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
M95256-RDW6TP
Active
TSSOP-8L Industrial Ecopack2
M95256-RMC6TG
Active
UFDFPN8 Industrial Ecopack2
M95256-RMN6TP
Active
SO8 Industrial Ecopack2

M95256-RDW6TP

Package:

TSSOP-8L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TSSOP-8L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

M95256-RMC6TG

Package:

UFDFPN8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

UFDFPN8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

M95256-RMN6TP

Package:

SO8

Material Declaration**:

Marketing Status

Active

Package

SO8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) 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.

Sample & Buy

Swipe or click the button to explore more details Don't show this again
Part Number
Order from distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Replacement Product
Budgetary Price (US$)*/Qty
Unit Price (US$)
Country of Origin
min
max
M95256-RMN6TP Available at distributors

Distributor availability of M95256-RMN6TP

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape and Reel SO8 -40 85 -

0.3342

PHILIPPINES

M95256-RMC6TG Available at distributors

Distributor availability of M95256-RMC6TG

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape and Reel UFDFPN8 -40 85 -

0.404

PHILIPPINES

M95256-RDW6TP Available at distributors

Distributor availability of M95256-RDW6TP

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape and Reel TSSOP-8L -40 85 -

0.3465

CHINA

M95256-RMN6TP Active

Package:
SO8
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

M95256-RMN6TP

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Replacement Product:

-

Country of Origin:

PHILIPPINES

Distributor Name

Distributor reported inventory date:

M95256-RMC6TG Active

Package:
UFDFPN8
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

M95256-RMC6TG

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Replacement Product:

-

Country of Origin:

PHILIPPINES

Distributor Name

Distributor reported inventory date:

M95256-RDW6TP Active

Package:
TSSOP-8L
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

M95256-RDW6TP

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Replacement Product:

-

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

Swipe or click the button to explore more details Don't show this again

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