The CAT93C86VI-26490T is an 16K-bit serial EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by ON Semiconductor (formerly Catalyst Semiconductor). It is organized as 1024 words x 16 bits (or 2048 words x 8 bits) and utilizes a Microwire interface for communication. This device offers low-power operation and is designed for applications requiring non-volatile storage of small amounts of data, such as configuration parameters or calibration constants.
Applications
- Consumer electronics (e.g., TVs, set-top boxes, DVD players)
- Industrial control systems
- Automotive electronics
- Medical devices
- Instrumentation
- Data logging
- Storing configuration settings
Features
- 16K-bit (2048 x 8 or 1024 x 16) Serial EEPROM
- Microwire serial interface
- Low-voltage operation (1.8V to 5.5V depending on version)
- Self-timed write cycle
- Write protect feature
- High reliability: 1 million erase/write cycles
- Data retention: 100 years
- Small package options (e.g., SOIC-8, TSSOP-8)
Benefits
- Non-volatile memory: Retains data when power is off.
- Microwire interface: Simple to interface with microcontrollers.
- Low power consumption: Suitable for battery-powered applications.
- High endurance: Supports a large number of write cycles.
- Small package: Saves valuable board space.
- Write protection: Prevents accidental data changes.
Additional Details
The CAT93C86VI-26490T uses a self-timed write cycle, simplifying the programming process. A write protect input is provided to prevent accidental overwriting of the memory contents. The Microwire interface consists of three signals: Chip Select (CS), Serial Clock (SK), and Serial Data (SI/SO). The operating voltage range varies depending on the specific version but typically covers 1.8V to 5.5V. It is typically used in applications that require a small amount of non-volatile memory for storing configuration parameters, calibration data, or user preferences.
