The AT24C512-SSH-T is a 512Kbit Electrically Erasable and Programmable Read-Only Memory (EEPROM) from Microchip (formerly Atmel). It is organized as 65,536 words of 8 bits each. The device is optimized for use in many industrial and commercial applications where low power and low voltage operation are essential. This EEPROM utilizes a 2-wire serial interface consisting of a serial data line (SDA) and a serial clock line (SCL) for communication.

Applications

• Serial presence detect (SPD) in PCs and servers
• Consumer electronics
• Industrial control systems
• Medical devices
• Automotive electronics

Features

• Low-voltage operation: 1.8V to 5.5V
• Internally Organized: 65,536 x 8 (512K)
• Two-wire Serial Interface
• Schmitt Trigger, Filtered Inputs for Noise Suppression
• Bidirectional Data Transfer Protocol
• 1 MHz (5V), 400 kHz (1.8V, 2.5V, 2.7V) Compatibility
• Write Protect Pin for Hardware Data Protection
• 64-Byte Page Write Mode
• Partial Page Writes Allowed
• Self-Timed Write Cycle (5 ms max)
• High Reliability: Data retention of 100 years & Endurance of 1 million write cycles
• Available Packages: SOIC, TSSOP, and others

Benefits

• Easy integration into systems via the simple 2-wire serial interface.
• Reliable data storage with high endurance and data retention.
• Low power consumption suitable for portable and energy-efficient applications.
• Hardware write protection prevents accidental data corruption.
• Small form factor packages enable compact designs.

Technical Specifications

The AT24C512-SSH-T operates from 1.8V to 5.5V. The operating temperature range is typically -40°C to +85°C. The device supports both standard (100 kHz) and fast (400 kHz) I2C bus speeds, and some versions support a 1 MHz clock rate at 5V. Write operations are self-timed with a typical write cycle time of 5ms. The device is available in various package options including SOIC and TSSOP. It features a write protect pin that provides hardware data protection. The endurance is rated for 1 million write cycles per byte, and data retention is guaranteed for 100 years.