Overview
The M24256-DRMN3TP/K is a 256-Kbit serial EEPROM device manufactured by STMicroelectronics, designed to meet the stringent requirements of the automotive industry. This device operates up to 125 °C and is compliant with the AEC-Q100 grade 1 standard, ensuring a very high level of reliability. It features a simple serial I2C compatible interface that can run up to 1 MHz. The memory array is based on advanced true EEPROM technology, organized as 32 K x 8 bits, with 512 pages of 64 bytes each. An additional Identification Page (64 bytes) is available for storing device identification and sensitive application parameters, which can be permanently locked in read-only mode.
Key Specifications
| Parameter | Value |
|---|---|
| Memory Size | 256 Kbit (32 K x 8 bits) |
| Interface Type | 2-Wire, I2C |
| Maximum Clock Frequency | 1 MHz |
| Page Size | 64 bytes |
| Supply Voltage Range | 1.7 V to 5.5 V |
| Operating Temperature Range | -40 °C to 125 °C |
| Package Type | SOIC, 8 Pins |
| Write Cycle Time | Byte Write: 4 ms, Page Write: 4 ms |
| Write Cycle Endurance | 4 million cycles at 25 °C, 1.2 million cycles at 85 °C, 600 k cycles at 125 °C |
| Data Retention | 50 years at 125 °C, 100 years at 25 °C |
| ESD Protection | 4000 V (Human Body Model) |
| RoHS Compliance | Yes, Ecopack2 |
Key Features
- Compatible with all I2C bus modes (1 MHz, 400 kHz, 100 kHz)
- Extended temperature and voltage ranges (-40 °C to 125 °C; 1.7 V to 5.5 V)
- Schmitt trigger inputs for noise filtering
- Short Write cycle time: Byte Write within 4 ms, Page Write within 4 ms
- High Write cycle endurance: 4 million cycles at 25 °C, 1.2 million cycles at 85 °C, 600 k cycles at 125 °C
- Long data retention: 50 years at 125 °C, 100 years at 25 °C
- ESD protection: 4000 V (Human Body Model)
- RoHS compliant and halogen-free (Ecopack2)
- Additional Write lockable Identification Page (64 bytes) for device identification and sensitive application parameters
Applications
The M24256-DRMN3TP/K is designed for use in automotive applications where high reliability and robust performance are critical. It is suitable for various automotive systems, including:
- Engine control units
- Transmission control units
- Infotainment systems
- Safety and security systems
- Other automotive electronic control units requiring non-volatile memory
Q & A
- What is the memory size of the M24256-DRMN3TP/K?
The memory size is 256 Kbit, organized as 32 K x 8 bits.
- What is the maximum clock frequency of the I2C interface?
The maximum clock frequency is 1 MHz.
- What is the operating temperature range of the device?
The operating temperature range is -40 °C to 125 °C.
- What is the supply voltage range of the device?
The supply voltage range is 1.7 V to 5.5 V.
- What is the write cycle endurance of the device?
The write cycle endurance is 4 million cycles at 25 °C, 1.2 million cycles at 85 °C, and 600 k cycles at 125 °C.
- Does the device have ESD protection?
Yes, the device has ESD protection of 4000 V (Human Body Model).
- Is the device RoHS compliant?
Yes, the device is RoHS compliant and halogen-free (Ecopack2).
- What is the purpose of the Identification Page?
The Identification Page (64 bytes) can be used to store device identification and sensitive application parameters, which can be permanently locked in read-only mode.
- What are the typical applications of the M24256-DRMN3TP/K?
The device is typically used in automotive applications such as engine control units, transmission control units, infotainment systems, and safety and security systems.
- What package types are available for the M24256-DRMN3TP/K?
The device is available in SOIC (8 Pins) and other packages like TSSOP-8L and DFN8.
