The Microchip Technology 93LC86A-E/SN is a high-speed, non-volatile serial Electrically Erasable Programmable Read-Only Memory (EEPROM) device. It is designed for applications requiring compact, low-power, and reliable storage with serial interfacing. The 93LC86A offers high endurance and data retention, making it suitable for storing configuration parameters, calibration data, and small code segments in embedded systems.
## Memory and Storage Specifications
* Memory Density: 16 Kbits (2 K x 8-bit organization)
* Memory Type: Serial EEPROM
* Data Retention: 100 years typical at 25°C
* Endurance: 1 million write/erase cycles per memory cell
* Page Size: Supports 16-byte page write operations for efficiency
* Addressing: 11-bit address bus for accessing 2,048 bytes of memory
## Electrical Specifications
* Supply Voltage (V_CC): 2.5 V to 5.5 V
* Operating Temperature Range: -40°C to +85°C (commercial and industrial grade)
* Standby Current: 1 µA typical at 5 V
* Active Read Current: 1.5 mA typical at 5 V
* Write Current: 5 mA typical at 5 V
* Maximum Clock Frequency: 10 MHz (for 5 V operation), 1 MHz for 2.5 V operation
## Serial Interface
* Interface Type: SPI-compatible serial interface
* Clock Input (SCK): Synchronous serial clock input
* Data Input/Output (SI/SO): Bidirectional data transfer pins
* Chip Select (CS): Active-low enable for communication
* Data Transfer Modes: Supports standard SPI modes, including read, write, and erase commands
* Write Control: Hardware write protection via Write Protect (WP) pin
* High-Speed Programming: Supports fast write and read cycles
## Timing and Performance
* Read Cycle Time: 150 ns typical at 5 V
* Write Cycle Time: 10 ms typical per byte, page writes reduce overall cycle time
* Standby-to-Active Time: 100 ns typical
* Data Setup and Hold Times: Compliant with SPI timing specifications
## Protection Features
* Write Protect: Prevents accidental writes to critical memory locations
* Endurance: High cycle endurance supports frequent data updates without reliability degradation
* Non-Volatility: Data preserved without power for extended periods
* Low Power Consumption: Optimized for battery-powered applications
## Packaging and Mechanical Specifications
* Package: 8-lead SOIC (Small Outline Integrated Circuit) or PDIP variants
* Lead Finish: Matte tin or RoHS-compliant finishes
* Soldering: Compatible with standard reflow and wave soldering processes
* Mounting: Surface-mount technology (SOIC) or through-hole (PDIP)
## Applications
* Embedded System Configuration: Storage of device configuration parameters and calibration data
* Consumer Electronics: Non-volatile memory for portable devices
* Industrial Controls: Retains operational parameters in industrial controllers
* Security Systems: Stores encryption keys or authentication codes securely
* Automotive Applications: Calibration data storage for automotive electronics, sensor data retention
* IoT Devices: Lightweight non-volatile memory for low-power connected devices
The 93LC86A-E/SN combines compact size, high endurance, low power consumption, and a reliable serial interface, providing an efficient solution for storing critical data in embedded systems and portable electronics where small footprint and non-volatile storage are essential.
