Specifications
| Attribute | Value |
| Package | Tape & Reel (TR) |
| ProductStatus | Active |
| MemoryType | Non-Volatile |
| MemoryFormat | EEPROM |
| Technology | EEPROM |
| MemorySize | 32Kb (4K x 8) |
| MemoryInterface | I²C |
| ClockFrequency | 400 kHz |
| WriteCycleTime-WordPage | 5ms |
| AccessTime | 900 ns |
| Voltage-Supply | 2.5V ~ 5.5V |
| OperatingTemperature | -40°C ~ 125°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 8-TSSOP (0.173, 4.40mm Width) |
Overview
Description
The 24LC32AT-E/ST is a 32-Kilobit (4K x 8) serial Electrically Erasable Programmable Read-Only Memory (EEPROM) device manufactured by Microchip Technology. It is designed for use in applications requiring non-volatile memory storage, such as data logging, configuration settings, and device identification. The device communicates via the I²C bus protocol, operating at speeds up to 1 MHz in Fast Mode Plus.
Equivalent
The 24LC32AT-E/ST is a 32Kb I2C EEPROM. Equivalent products include:
1. AT24C32 from Microchip/Atmel
2. CAT24C32 from ON Semiconductor
3. M24C32 from STMicroelectronics
4. BR24T32 from ROHM Semiconductor
5. FM24C32 from Cypress Semiconductor
These parts have similar I2C interfaces and memory specifications, making them interchangeable in many applications. Always confirm specific requirements like package type and temperature ratings before substituting.
1. AT24C32 from Microchip/Atmel
2. CAT24C32 from ON Semiconductor
3. M24C32 from STMicroelectronics
4. BR24T32 from ROHM Semiconductor
5. FM24C32 from Cypress Semiconductor
These parts have similar I2C interfaces and memory specifications, making them interchangeable in many applications. Always confirm specific requirements like package type and temperature ratings before substituting.
Features
The 24LC32AT-E/ST is a 32Kb (kilobit) I2C Serial EEPROM manufactured by Microchip Technology. Key features include:
1. Memory Size: 32Kb organized as 4,096 x 8 bits.
2. Interface: I2C-compatible, supporting standard (100 kHz), fast (400 kHz), and fast-plus (1 MHz) modes.
3. Voltage Range: Operates over a wide voltage range from 1.7V to 5.5V, making it versatile for various applications.
4. Low Power Consumption: Features low standby and active current, enhancing battery life in portable devices.
5. Page Write: Supports up to 32-byte page write, allowing for efficient data management.
6. Write Protection: Offers a hardware write-protect pin to safeguard data against accidental overwrites.
7. Data Retention: Ensures data retention for over 200 years, ensuring reliability.
8. Endurance: Provides over 1 million erase/write cycles, supporting long-term usage.
9. Temperature Range: Operates within a temperature range suitable for industrial applications (-40°C to +85°C).
10. Package: Available in an 8-lead TSSOP package, facilitating compact designs.
These features make it suitable for a wide range of applications, including consumer electronics, automotive, and industrial controls.
1. Memory Size: 32Kb organized as 4,096 x 8 bits.
2. Interface: I2C-compatible, supporting standard (100 kHz), fast (400 kHz), and fast-plus (1 MHz) modes.
3. Voltage Range: Operates over a wide voltage range from 1.7V to 5.5V, making it versatile for various applications.
4. Low Power Consumption: Features low standby and active current, enhancing battery life in portable devices.
5. Page Write: Supports up to 32-byte page write, allowing for efficient data management.
6. Write Protection: Offers a hardware write-protect pin to safeguard data against accidental overwrites.
7. Data Retention: Ensures data retention for over 200 years, ensuring reliability.
8. Endurance: Provides over 1 million erase/write cycles, supporting long-term usage.
9. Temperature Range: Operates within a temperature range suitable for industrial applications (-40°C to +85°C).
10. Package: Available in an 8-lead TSSOP package, facilitating compact designs.
These features make it suitable for a wide range of applications, including consumer electronics, automotive, and industrial controls.
Pinout
The 24LC32AT-E/ST is a 32K I2C Serial Electrically Erasable Programmable Read-Only Memory (EEPROM) chip from Microchip Technology. It comes in an 8-pin Small Outline Integrated Circuit (SOIC) package. Its main features and pin functions are as follows:
1. VCC (Pin 8): Power supply pin.
2. GND (Pin 4): Ground pin.
3. SDA (Pin 5): Serial Data line, a bidirectional pin for data transfer.
4. SCL (Pin 6): Serial Clock line, used to synchronize data transfer.
5. WP (Pin 7): Write Protect pin, used to enable or disable write operations.
6. A0, A1, A2 (Pins 1, 2, 3): Device address inputs, allowing for up to 8 devices on the same bus.
These pins allow the 24LC32AT-E/ST to interface with microcontrollers over the I2C bus, providing non-volatile storage capability with 32K bits organized as 4K x 8 bytes. The device is widely used in applications requiring reliable data retention and low power consumption.
1. VCC (Pin 8): Power supply pin.
2. GND (Pin 4): Ground pin.
3. SDA (Pin 5): Serial Data line, a bidirectional pin for data transfer.
4. SCL (Pin 6): Serial Clock line, used to synchronize data transfer.
5. WP (Pin 7): Write Protect pin, used to enable or disable write operations.
6. A0, A1, A2 (Pins 1, 2, 3): Device address inputs, allowing for up to 8 devices on the same bus.
These pins allow the 24LC32AT-E/ST to interface with microcontrollers over the I2C bus, providing non-volatile storage capability with 32K bits organized as 4K x 8 bytes. The device is widely used in applications requiring reliable data retention and low power consumption.
Manufacturer
The 24LC32AT-E/ST is manufactured by Microchip Technology Inc. Microchip is a leading American company that specializes in the production of microcontrollers, mixed-signal, analog, and Flash-IP integrated circuits. Founded in 1989 and headquartered in Chandler, Arizona, Microchip serves various industries, including automotive, industrial, consumer electronics, and network communications. The company is well-regarded for its comprehensive range of semiconductor products and embedded solutions that help engineers design and develop advanced electronic systems.
Application
The 24LC32AT-E/ST is a 32Kb I2C EEPROM memory chip used in various applications where non-volatile storage is needed. Common application areas include:
1. Consumer Electronics: Storing configuration settings, user preferences, and calibration data.
2. Industrial Equipment: Firmware updates and data logging for monitoring and diagnostics.
3. Automotive: Retaining sensor calibration, fault codes, and vehicle settings.
4. Medical Devices: Storing patient data and device settings.
5. IoT Devices: Retaining device configurations and operational data.
6. Communication Equipment: Storing network settings and parameters.
Its small size, low power consumption, and reliable data retention make it suitable for embedded systems and portable devices.
1. Consumer Electronics: Storing configuration settings, user preferences, and calibration data.
2. Industrial Equipment: Firmware updates and data logging for monitoring and diagnostics.
3. Automotive: Retaining sensor calibration, fault codes, and vehicle settings.
4. Medical Devices: Storing patient data and device settings.
5. IoT Devices: Retaining device configurations and operational data.
6. Communication Equipment: Storing network settings and parameters.
Its small size, low power consumption, and reliable data retention make it suitable for embedded systems and portable devices.
Package
The 24LC32AT-E/ST is packaged in an 8-lead Small Outline Integrated Circuit (SOIC) form, which is a surface-mount device. This package is compact, making it ideal for applications where space conservation on a printed circuit board is crucial.
