The AT93C46A-10TC-2.7 is a serial Electrically Erasable Programmable Read-Only Memory (EEPROM) IC from Atmel. This device features a 1K-bit memory array organized as either 64 words of 16 bits each or 128 words of 8 bits each, selectable via the ORG pin. It operates at a low voltage (2.7V) and uses a simple 3-wire serial interface, making it ideal for applications requiring non-volatile data storage in a compact and power-efficient manner. It's categorized as END-OF-LIFE, so new designs may require looking at newer EEPROM solutions.

Applications

• Consumer Electronics: Storing configuration settings in TVs, DVD players, and set-top boxes.
• Automotive Electronics: Storing calibration data in engine control units (ECUs) and instrument clusters.
• Industrial Equipment: Storing parameters and settings in programmable logic controllers (PLCs) and other industrial control systems.
• Medical Devices: Storing calibration data and patient information in medical instruments.
• Security Systems: Storing access codes and security settings in alarm systems and access control systems.

Features

• 1K-bit EEPROM: Provides non-volatile storage for small amounts of data.
• Low Voltage Operation (2.7V): Suitable for battery-powered applications.
• 3-Wire Serial Interface: Simplifies communication with microcontrollers.
• Self-Timed Write Cycle: Eliminates the need for external timing components.
• High Reliability: Offers excellent data retention and endurance.
• ORG Pin Selectable Organization: Allows flexible memory configuration (64x16 or 128x8).
• Schmitt Trigger Inputs: Improves noise immunity.

Benefits

• Non-Volatile Storage: Data is retained even when power is removed.
• Easy to Use: The simple serial interface simplifies integration into embedded systems.
• Low Power Consumption: Extends battery life in portable devices.
• Compact Size: The small package size makes it suitable for space-constrained applications.
• High Reliability: Ensures data integrity over a long period.

Additional Details

The AT93C46A-10TC-2.7 has a typical operating temperature range of -40°C to +85°C. The '10' in the part number signifies a clock frequency of 1 MHz. The 'TC' denotes the package type, which is typically an 8-pin TSSOP (Thin Shrink Small Outline Package). Write endurance is typically 1 million cycles per memory location. The data retention is typically 100 years. It's programmed serially using a clock, data-in, and data-out line with a chip select. Due to its END-OF-LIFE status, consider Microchip's newer EEPROM offerings for any new designs that need serial EEPROM.