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24LC04B-E/ST

MCHP24LC04B-E/ST

Microchip Technology
EEPROM Memory IC 4Kbit I2C 400 kHz 900 ns 8-TSSOP
NRND6,646 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The 24LC04B-E/ST is a 4Kbit (512 x 8) I2C serial EEPROM designed for high-reliability applications, featuring AEC-Q100 qualification for automotive environments. It supports a wide operating voltage range from 2.5V to 5.5V and includes a hardware write-protect pin for data security. This extended temperature version is rated for operation in harsh conditions, making it suitable for automotive and industrial control modules.

Why Choose This Part

The device features a 16-byte page write buffer and a fast self-timed write cycle of 5ms. It offers exceptional durability with over 1 million erase/write cycles and more than 200 years of data retention. The TSSOP-8 package includes Schmitt trigger inputs for noise suppression and output slope control to minimize ground bounce during high-speed transitions.

Applications

Automotive ECU Parameter Storage
Storing calibration data, VIN information, and odometer offsets in vehicle control units.
Industrial Sensor Calibration
Retaining sensor scaling factors and look-up tables in 4-20mA or IO-Link transmitters.
Consumer Appliance Settings
Saving user preferences and state information in white goods that require high endurance.
Power Supply Configuration
Storing output voltage trim settings and sequencing profiles in digital power controllers.

Key Specifications

Technology EEPROM
Access Time 900 ns
Memory Size 4Kbit
Memory Type Non-Volatile
Memory Format EEPROM
Mounting Type Surface Mount
Package / Case 8-TSSOP (0.173", 4.40mm Width)
Clock Frequency 400 kHz
Memory Interface I2C
Voltage - Supply 2.5V ~ 5.5V
Memory Organization 256 x 8 x 2
Operating Temperature -40degC ~ 125degC (TA)
Supplier Device Package 8-TSSOP
Write Cycle Time - Word, Page 5ms

Getting Started

Interface the 24LC04B to any MCU via the SDA and SCL lines with pull-up resistors, typically 4.7k ohms for 400 kHz operation. Ensure the WP pin is tied to GND for normal write operations or VCC to protect the memory array. Microchip's MPLAB Starter Kits and MCC (Code Configurator) provide automated driver generation for standard I2C communication with this device.

Part of 24LCxx / AT24Cxx I2C EEPROM family » 24LC04B

24LC04B Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Temp Range Stock
24LC04B-E/ST (this part) TSSOP-8 -40degC ~ 125degC .. 6,646
24LC04B SC-74A, SOT-753 -40degC ~ 85degC (.. 6,316
24LC04B-I/SN SOIC-8 -40degC ~ 85degC (.. 4,529

Categories

Memory & Storage > EEPROM