25LC020A-E/P

Product Overview

Category: Integrated Circuit (IC)

Use: Non-volatile Serial EEPROM Memory

Characteristics: - Low-power CMOS technology - 2Kbits of memory organized as 256 x 8-bit - SPI compatible serial interface - Self-timed erase and write cycles - 1,000,000 erase/write cycles guaranteed - Data retention > 200 years - 64-byte page write mode - Hardware write protection - Low power consumption - Wide operating voltage range: 2.5V to 5.5V - Industrial temperature range: -40°C to +85°C

Package: DIP-8 (Dual In-line Package)

Essence: The 25LC020A-E/P is a non-volatile serial EEPROM memory IC that provides reliable data storage in various electronic devices.

Packaging/Quantity: The 25LC020A-E/P is typically sold in reels or tubes containing multiple units. The exact quantity depends on the supplier and customer requirements.

Specifications

• Memory Size: 2Kbits (256 bytes)
• Memory Organization: 256 x 8-bit
• Interface: SPI (Serial Peripheral Interface)
• Write Modes: Byte and Page (64-byte)
• Erase/Write Cycles: 1,000,000 guaranteed
• Data Retention: > 200 years
• Operating Voltage Range: 2.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Package Type: DIP-8

Detailed Pin Configuration

The 25LC020A-E/P has eight pins arranged in a Dual In-line Package (DIP-8) configuration:

1. Chip Select (/CS): Enables communication with the device.
2. Serial Clock (SCK): Provides the clock signal for data transfer.
3. Serial Data Input (SI): Receives data from the microcontroller or other devices.
4. Serial Data Output (SO): Transmits data to the microcontroller or other devices.
5. Write Protect (/WP): Allows hardware write protection.
6. VCC: Power supply voltage input.
7. Ground (GND): Common ground reference.
8. Hold (/HOLD): Suspends serial communication temporarily.

Functional Features

• Non-volatile memory: Retains data even when power is disconnected.
• SPI interface: Compatible with a wide range of microcontrollers and other devices.
• Self-timed erase and write cycles: Simplifies programming operations.
• Hardware write protection: Prevents accidental modification of stored data.
• Low power consumption: Ideal for battery-powered applications.
• Wide operating voltage range: Ensures compatibility with various systems.
• Industrial temperature range: Suitable for harsh environments.

Advantages and Disadvantages

Advantages: - Reliable non-volatile memory storage - Easy integration with SPI-compatible devices - High endurance with guaranteed erase/write cycles - Long data retention period - Low power consumption - Flexible write modes for efficient data handling - Hardware write protection for data security

Disadvantages: - Limited memory size (2Kbits) - Requires external microcontroller or device for communication

Working Principles

The 25LC020A-E/P utilizes a floating-gate transistor technology to store data in its non-volatile memory cells. The memory can be written or erased using self-timed cycles, controlled by the microcontroller through the SPI interface. The device operates within a specified voltage range and provides reliable data retention for extended periods.

Detailed Application Field Plans

The 25LC020A-E/P is widely used in various electronic systems that require non-volatile memory storage. Some common application fields include:

1. Consumer Electronics: Used in smart TVs, set-top boxes, and audio systems for storing configuration data, user preferences, and firmware updates.
2. Industrial Automation: Employed in industrial control systems, PLCs (Programmable Logic Controllers), and sensors for storing calibration data, event logs, and system parameters.
3. Automotive Electronics: Integrated into automotive ECUs (Engine Control Units), infotainment systems, and instrument clusters for storing vehicle settings, fault codes, and diagnostic information.
4. Medical Devices: Utilized in medical equipment such as patient monitors, infusion pumps, and diagnostic devices for storing patient data, device configurations, and firmware updates.

Detailed and Complete Alternative Models

• 25LC040A-E/P: 4Kbits Serial EEPROM Memory
• 25LC080A-E/P: 8Kbits Serial EEPROM Memory
• 25LC160A-E/P: 16Kbits Serial EEPROM Memory
• 25LC320A-E/P: 32Kbits Serial EEPROM Memory
• 25LC640A-E/P: 64Kbits Serial EEPROM Memory
• 25LC128A