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M95640-RMN6P

M95640-RMN6P

STMicroelectronics
EEPROM Memory IC 64Kbit SPI 20 MHz 8-SOIC
Active6,648 in stock

Overview

The M95640-RMN6P is a 64-Kbit non-volatile EEPROM organized as 8192 x 8 bits, utilizing a high-speed SPI bus interface. It operates across a wide supply voltage range from 1.8V to 5.5V and supports clock frequencies up to 20 MHz. This memory IC is housed in a standard 8-SOIC package and is designed for reliable data retention in industrial temperature environments from -40 to 85 degrees Celsius.

Why Choose This Part

The part offers high flexibility with its 1.8V to 5.5V operating range, making it compatible with both low-power 1.8V MCUs and standard 5V systems. Its 20 MHz SPI interface ensures fast read and write cycles compared to standard I2C EEPROMs. Additionally, the industrial temperature rating ensures stability in demanding environments.

Applications

Microcontroller Parameter Storage
Storing calibration data, user preferences, and configuration settings for embedded systems.
Industrial Sensor Logging
Recording event logs and sensor threshold data in industrial automation equipment.
Network Interface Configuration
Maintaining MAC addresses and static IP settings for Ethernet or Wi-Fi enabled modules.
Consumer Electronics
Retaining state information and firmware patch metadata in battery-powered handheld devices.

Key Specifications

Technology EEPROM
Memory Size 64Kbit
Memory Type Non-Volatile
Memory Format EEPROM
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Clock Frequency 20 MHz
Memory Interface SPI
Voltage - Supply 1.8V ~ 5.5V
Memory Organization 8K x 8
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 8-SOIC
Write Cycle Time - Word, Page 5ms

Getting Started

Interface the device with any SPI-capable microcontroller using Mode 0 or Mode 3. Ensure the Write Protect (WP) and Hold (HOLD) pins are tied high if their hardware control features are not required. Use standard SPI libraries to send the 8-bit instructions for Read, Write, and Status Register operations.

Also Consider

25LC640A-I/SN MCHPMicrochip Technology - A highly compatible 64Kbit SPI EEPROM with similar voltage and frequency specifications in an 8-SOIC package.
AT25640B-SSHL-T Microchip Technology / Atmel - Offers an alternative 64Kbit SPI EEPROM option frequently used in automotive and industrial designs.