Microchip 25LC080C-E/SN: A High-Performance 1-Mbit SPI Serial EEPROM Solution

The Microchip 25LC080C-E/SN is a highly reliable 1-Megabit SPI Serial EEPROM memory chip designed for a wide range of embedded systems and data storage applications. This device offers a robust combination of non-volatile memory, low-power operation, and a simple serial peripheral interface (SPI), making it an ideal choice for storing configuration parameters, calibration data, or event logs in systems where space and power are at a premium.

Operating over a broad voltage range (1.8V to 5.5V), this EEPROM is versatile enough for use in both 5V and 3.3V systems. Its 16-byte page write buffer enables efficient data writing, while the built-in hardware write-protection (via the WP pin) safeguards critical data from accidental overwrites. The chip supports the full SPI bus specifications, including modes 0,0 and 1,1, ensuring compatibility with a vast array of microcontrollers and processors.

A key feature of the 25LC080C is its extremely low power consumption, which is critical for battery-powered and portable devices. It offers a standby current of just 1 µA (max) and an active read current of 3 mA at 5.5V. With a maximum clock frequency of 10 MHz, it provides sufficient speed for most data transfer needs. The memory is organized as 16,384 bytes of 8 bits each and boasts a endurance of over 1,000,000 erase/write cycles per sector, backed by data retention of over 200 years.

Housed in a compact 8-lead SOIC (SN) package, it is perfectly suited for applications with strict PCB space constraints. Common applications include:

Industrial control and automation systems

Automotive electronics

Smart meters

Consumer electronics

Medical devices

ICGOOODFIND: The Microchip 25LC080C-E/SN stands out as a highly reliable and efficient serial EEPROM solution. Its combination of a simple SPI interface, exceptional endurance and retention, wide voltage operation, and low-power characteristics make it a superior choice for designers seeking dependable non-volatile memory in a compact form factor.

Keywords:

1. SPI EEPROM

2. Non-Volatile Memory

3. Low-Power

4. Hardware Write-Protection

5. 1-Megabit