Description
The 256LC256T-E/SN from Microchip is a high-performance, 256-Kbit (32K × 8-bit) serial EEPROM designed for demanding applications requiring robust, non-volatile data storage. It utilizes the industry-standard Serial Peripheral Interface (SPI) to provide efficient, high-speed data transfer at clock frequencies up to 10 MHz. This device is qualified for the “E-temp” range (-40°C to +125°C), making it an excellent choice for automotive, industrial, and high-reliability embedded systems.
Housed in a compact 8-pin SOIC surface-mount package, the 256LC256 offers a versatile voltage operating range of 2.5V to 5.5V. Its low-power CMOS technology and high endurance make it ideal for storing critical system parameters, calibration data, and frequent data logs in environments where reliability and long-term data integrity are paramount.
Key Features
- Memory Density: 256-Kbit capacity, organized as 32K × 8-bit.
- High-Speed SPI: Serial SPI interface supporting clock speeds up to 10 MHz.
- Automotive Grade: Wide operating temperature range of -40°C to +125°C for extreme reliability.
- Wide Voltage Range: Supports 2.5V to 5.5V supply voltage operation.
- Compact Footprint: 8-pin SOIC package optimized for space-constrained PCB layouts.
- Reliable Design: Low-power CMOS technology with high endurance for repeated write operations.
Applications
- Automotive Electronics: Reliable parameter storage for powertrain, safety, and infotainment systems.
- Industrial Automation: Persistent configuration storage for sensors, controllers, and monitoring equipment.
- Embedded Systems: Essential memory for microcontrollers, wireless nodes, and portable hardware.
- Data Logging: Dependable storage for time-stamped logs and operational parameters.
Package Includes
- 1 x 25LC256T-E/SN EEPROM IC (SOIC-8)
Technical Specifications
| Parameter | Specification |
|---|---|
| Device | 25LC256T-E/SN |
| Memory Capacity | 256 Kbit (32K × 8-bit) |
| Interface | Serial SPI |
| Max Frequency | 10 MHz |
| Supply Voltage | 2.5V – 5.5V |
| Operating Temp | -40°C to +125°C |
| Package Type | SOIC-8 (Surface Mount) |
Note: Product images are shown for illustrative purposes only and may differ from the actual product. For complete technical parameters and timing diagrams, please refer to the official Microchip datasheet.




