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25LC512-I/P

MCHP25LC512-I/P

Microchip Technology
EEPROM Memory IC 512Kbit SPI 20 MHz 8-PDIP
Active1,705 in stock
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Overview

The 25LC512-I/P is a 512 Kbit serial EEPROM organized as 64K x 8 bits, designed for high-speed non-volatile data storage. It utilizes a standard SPI interface and operates over a wide voltage range of 2.5V to 5.5V, making it compatible with both 3.3V and 5V logic systems. This through-hole PDIP version is particularly popular for prototyping and low-volume industrial applications.

Why Choose This Part

This device supports high-speed clock frequencies up to 20 MHz and features a low standby current of only 1 uA. Its 128-byte page write capability and endurance for high-frequency write cycles make it more robust for frequently updated data compared to standard Flash memory.

Applications

Configuration Storage
Retaining system calibration constants, network settings, and user preferences in embedded systems.
Data Logging
Storing sensor readings or event logs in low-power industrial monitoring equipment.
Boot Code Buffering
Holding small executable code segments or lookup tables that must be accessible at startup.

Key Specifications

Technology EEPROM
Memory Size 512Kbit
Memory Type Non-Volatile
Memory Format EEPROM
Mounting Type Through Hole
Package / Case 8-DIP (0.300", 7.62mm)
Clock Frequency 20 MHz
Memory Interface SPI
Voltage - Supply 2.5V ~ 5.5V
Memory Organization 64K x 8
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 8-PDIP
Write Cycle Time - Word, Page 5ms

Getting Started

To use this part, connect the SPI lines (CS, SCK, SI, SO) to your microcontroller and ensure a 0.1uF decoupling capacitor is placed near the VDD pin. For software development, use standard SPI libraries like the Microchip MPLAB XC8 peripheral libraries or the Arduino SPI library to manage the instruction sets for byte and page writes.

Also Consider

24LC512-I/P MCHPMicrochip Technology - Select this version if your design requires an I2C interface instead of SPI while maintaining the same 512Kb capacity and DIP package.

Categories

Memory & Storage > EEPROM