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M24C32-WMN6TP

M24C32-WMN6TP

STMicroelectronics
Industry-standard 32-Kbit I2C EEPROM with similar footprint and interface; useful if you prefer ST's product line or supply options.
62,456 in stock
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Overview

The M24C32-WMN6TP is an industry-standard 32-Kbit non-volatile I2C EEPROM organized as 4096 x 8 bits. It operates across a wide voltage range of 2.5V to 5.5V and supports clock frequencies up to 1MHz. This memory device is housed in a standard 8-pin SOIC package and features hardware write protection for data security.

Why Choose This Part

This EEPROM offers a very low standby current of only 2uA and high-speed I2C performance up to 1MHz. Its hardware write-protection pin provides a physical layer of security against accidental data corruption or malicious overwriting. The wide 2.5V to 5.5V operating range makes it compatible with both legacy 5V systems and modern 3.3V logic.

Applications

Configuration Storage
Storing calibration data, device settings, and user preferences in industrial and consumer electronics.
Initialization Parameters
Holding boot-up parameters and lookup tables for microcontrollers with limited internal non-volatile memory.
Event Logging
Recording error codes, usage timestamps, or small diagnostic logs in embedded systems.
Identification Storage
Maintaining serial numbers, MAC addresses, and product version information for device tracking.

Key Specifications

Technology EEPROM
Access Time 450 ns
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 1 MHz
Memory Interface I2C
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

To interface with this device, connect the SCL and SDA lines to your microcontroller's I2C peripheral with appropriate pull-up resistors. Ensure the WC (Write Control) pin is tied to VSS to enable write operations or to VCC to protect the memory. STMicroelectronics provides standard C libraries and drivers within the STM32Cube ecosystem that are compatible with the M24 series.

Also Consider

24LC32A-I/SN MCHPMicrochip Technology - A widely available alternative with a similar 2.5V to 5.5V operating range and standard I2C interface.
CAT24C32WI-GT3 ONonsemi - A drop-in replacement in an 8-SOIC package that supports standard and fast I2C protocols.
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