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25LC320A-I/SN

MCHP25LC320A-I/SN

Microchip Technology
EEPROM Memory IC 32Kbit SPI 10 MHz 8-SOIC
NRND1,500 in stock

Overview

The 25LC320A-I/SN is a 32Kbit serial Electrically Erasable PROM (EEPROM) from Microchip Technology, organized as 4096 x 8 bits. It utilizes a high-speed SPI bus interface capable of clock frequencies up to 10 MHz and operates over a wide voltage range of 2.5V to 5.5V. This non-volatile memory is designed for applications requiring low power consumption and reliable data storage in an industry-standard 8-pin SOIC package.

Why Choose This Part

This device features a very low standby current of only 5uA and an active read current of 5mA at 5.5V, making it suitable for battery-powered designs. It supports high-speed data transfers with a 10 MHz clock and offers robust data retention in a compact 8-SOIC footprint across the industrial temperature range of -40C to +85C.

Applications

Configuration Storage
Retaining calibration data, device settings, and user preferences in embedded systems.
Event Logging
Recording system errors, usage statistics, or sensor data timestamps for later retrieval.
Boot Parameters
Storing lookup tables or initialization constants required by a microcontroller during startup.

Key Specifications

Technology EEPROM
Memory Size 32Kbit
Memory Type Non-Volatile
Memory Format EEPROM
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Clock Frequency 10 MHz
Memory Interface SPI
Voltage - Supply 2.5V ~ 5.5V
Memory Organization 4K x 8
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 8-SOIC
Write Cycle Time - Word, Page 5ms

Getting Started

Interface the memory to a microcontroller using the four-pin SPI bus (CS, SCK, SI, SO). Ensure the HOLD and WP pins are tied high if their respective functions are not required. Microchip provides the MPLAB XC8/XC16 compilers and peripheral libraries to simplify SPI communication and command sequencing for EEPROM operations.

Also Consider

25LC640A-I/SN MCHPMicrochip Technology - Provides double the storage capacity (64Kbit) in the same physical 8-SOIC package and pinout.