Product overview
Key Benefits
Robust data integrity
Up to 200-year data retention and 4 million write cycles ensure reliable, long‑term storage
Factory programmed and unique
UID is guaranteed unique and cannot be altered in the field
Easy plug and play integration
JEDEC 8‑pin package enable a ready‑to‑use solution that saves design and test time
Description
The M24256E-U is a 256-Kbit I²C-compatible EEPROM (electrically erasable programmable memory) organized as 32 K x 8 bits. It can operate with a supply voltage from 1.7 V to 5.5 V with a clock frequency up to 1 MHz, over an ambient temperature range from -40 °C to +85 °C.
The device offers an 8-bit register called the configurable device address (CDA).
The device also offers a 64-byte identification page. This additional page stores a 128‑bit (16‑byte) unique factory-programmed serial number, locked in read-only mode at factory delivery.
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All features
- I²C interface
- Compatible with the following I²C bus modes:
- 1 MHz (Fast-mode Plus)
- 400 kHz (Fast-mode)
- 100 kHz (Standard-mode)
- Compatible with the following I²C bus modes:
- Memory
- 256-Kbit (32-Kbyte) of EEPROM
- Page size: 64-byte
- Identification page
- 256-bit (32-byte) locked in read-only mode at factory delivery
- UID
- 128-bit (16-byte) unique factory-programmed serial number
- Supply voltage
- Wide voltage range: 1.7 V to 5.5 V
- Temperature
- Operating temperature range: -40 °C to +85 °C
- Fast write cycle time
- Byte and page write within 5 ms (typically 3.2 ms)
- Performance
- Enhanced ESD/latch-up protection
- More than 4 million write cycles
- More than 200-year data retention
- Fast wake-up time (less than 5 µs)
- Ultralow-power current consumption
- 310 nA (typical) in standby mode
- 100 µA (typical) for read current
- 150 µA (typical) for write current
- Advanced features
- Configurable device address register
- Hardware write protection of the whole memory array
- Random and sequential read modes
- Packages
- SO8N (ECOPACK2-compliant)
- I²C interface
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STMicroelectronics - M24256E-U
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| M24256E-UFMN6TP | Active Product is in volume production. | SO-8 | Industrial | Ecopack2 | 10 | 2025-01-01T00:00:00.000+01:00 | |
M24256E-UFMN6TP
Package:
SO-8Material Declaration**:
(**) 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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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 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | ||||||||||||||||
| M24256E-UFMN6TP | | | distributors No availability of distributors reported, please contact our sales office |
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M24256E-UFMN6TP Active
(*) 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