Product overview
Description
The M95640 devices are electrically erasable programmable memories (EEPROMs) organized as 8192 x 8 bits, accessed through the SPI bus.
The M95640-W can operate with a supply voltage from 2.5 V to 5.5 V, the M95640-R can operate with a supply voltage from 1.8 V to 5.5 V and the M95640-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 M95640-D offers an additional page, named the identification page (32 bytes). The identification page can be used to store sensitive application parameters which can be (later) permanently locked in read-only mode.
The SPI bus signals are C, D and Q. The device is selected when chip select (S) is driven low. Communications with the device can be interrupted when the HOLD is driven low.
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All features
- SPI interface
- Compatible with the serial peripheral interface (SPI) bus
- Memory
- 64 Kb (8 Kbytes) of EEPROM
- Page size: 32 bytes
- Additional write lockable page (identification page)
- Supply management
- Wide single supply voltage:
- 2.5 V to 5.5 V for M95640-W
- 1.8 V to 5.5 V for M95640-R
- 1.7 V to 5.5 V for M95640-DF
- Wide single supply voltage:
- Temperature
- Operating temperature range: from -40 °C up to +85 °C
- Fast write cycle time
- Byte and page write within 5 ms
- High speed clock frequency
- Clock up to 20 MHz
- Performance
- Enhanced ESD protection
- More than 4 million write cycles
- More than 200-year data retention
- Advanced features
- Write protect: quarter, half or whole memory array
- Package
- SO8 (ECOPACK2)
- TSSOP8 (ECOPACK2)
- UFDFPN8 (ECOPACK2)
- WLCSP (ECOPACK2)
- SPI interface
Circuit Diagram
EDA Symbols, Footprints and 3D Models
STMicroelectronics - M95640-W
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Symbols
Footprints
3D models
All resources
| Resource title | Version | Latest update |
|---|
IBIS models (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| ZIP | 1.1 | 25 Jan 2021 | 25 Jan 2021 |
CAD Symbol & Footprint models (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| ZIP | 1.0 | 27 Apr 2021 | 27 Apr 2021 |
Verilog models (2)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| ZIP | 1.0 | 22 Jan 2021 | 22 Jan 2021 | |
| ZIP | 1.0 | 28 Jan 2021 | 28 Jan 2021 |
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| M95640-WDW6TP | NRND | TSSOP-8L | Industrial | Ecopack2 | - | 2024-01-01T00:00:00.000+01:00 | |
| M95640-WMN6TP | NRND | SO8 | Industrial | Ecopack2 | - | 2024-01-01T00:00:00.000+01:00 |
(**) 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
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | Free Samples | ESample Max Qty | Replacement Product | ||
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| M95640-WDW6TP | | | distributors No availability of distributors reported, please contact our sales office |
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| M95640-WMN6TP | | | distributors No availability of distributors reported, please contact our sales office |
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M95640-WDW6TP NRND
M95640-WMN6TP NRND
(*) 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