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AT24C64D-SSPD-T

MCHPAT24C64D-SSPD-T

Microchip Technology
EEPROM Memory IC 64Kbit I2C 400 kHz 900 ns 8-SOIC
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Overview

The AT24C64D-SSPD-T is a 64Kbit serial EEPROM organized as 8,192 words of 8 bits each, utilizing a standard I2C (2-wire) interface. It is designed for low-power and low-voltage operation, supporting a wide supply range from 2.5V to 5.5V and featuring a standby current of only 3.0 uA. This memory device is optimized for industrial and commercial applications requiring non-volatile data storage in a compact 8-pin SOIC package.

Why Choose This Part

This EEPROM offers high reliability with a wide operating temperature range of -40C to 125C, making it suitable for harsh environments. Its low power consumption of 1.0 mA during read operations and compatibility with 400 kHz I2C clocks allow for efficient communication with various microcontrollers. Additionally, the device features a hardware write-protect pin to prevent accidental data corruption.

Applications

Configuration Storage
Maintaining system calibration data, user settings, and network configuration parameters that must persist through power cycles.
System Logging
Recording error logs, event timestamps, and maintenance history in embedded systems.
Identification and Security
Storing serial numbers, MAC addresses, and security keys for hardware authentication.
Asset Tracking
Retaining usage statistics and life-cycle data in portable industrial equipment.

Key Specifications

Technology EEPROM
Access Time 900 ns
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 400 kHz
Memory Interface I2C
Voltage - Supply 2.5V ~ 5.5V
Memory Organization 8K x 8
Operating Temperature -40degC ~ 125degC (TA)
Supplier Device Package 8-SOIC
Write Cycle Time - Word, Page 5ms

Getting Started

Engineers can interface this device with any I2C-capable microcontroller using standard wire libraries; ensure the WP (Write Protect) pin is tied to GND for write operations. Connect 2.2k to 10k ohm pull-up resistors to the SDA and SCL lines, and utilize the three hardware address pins (A0, A1, A2) to allow up to eight devices on the same bus.

Also Consider

M24C64-WMN6TP STMicroelectronics - A robust 64Kbit I2C EEPROM that supports a similar voltage range and industrial temperature specifications.
CAT24C64WI-GT3 ONonsemi - A compatible 64Kbit serial EEPROM alternative with a wide operating voltage and 400 kHz clock speed support.
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