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BR24G512FJ-3AGTE2

ROHM 512Kbit I2C EEPROM, 1.7V~5.5V, TSSOP-8, 3.4MHz HS mode, 1M write cycles

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Manufacturer Part：

BR24G512FJ-3AGTE2

Package：

TSSOP-8 (4.4mm x 3.0mm, FJ suffix)

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Description

Product Overview

The BR24G512FJ-3AGTE2 is a 512Kbit (64K x 8-bit) serial I2C EEPROM manufactured by ROHM Semiconductor. It features a wide operating voltage range of 1.7V to 5.5V and supports high-speed I2C modes up to 3.4MHz. Housed in a compact TSSOP-8 package, this device is ideal for storing configuration data, calibration parameters, and user settings in space-constrained applications.

Key Specifications

Memory Capacity 512Kbit (64K x 8-bit)
Interface I2C (2-wire serial), up to 3.4MHz HS mode
Operating Voltage 1.7V ~ 5.5V
Page Size 128 bytes
Write Endurance 1,000,000 cycles/byte
Data Retention 100 years @ 85C, 50 years @ 105C
Operating Temperature -40C ~ +105C (-3A suffix)
ESD Protection HBM 4000V, CDM 1000V
Package TSSOP-8 (4.4mm x 3.0mm)

Features

  • Supports 400kHz, 1MHz, and 3.4MHz I2C bus speeds
  • Software write protect function
  • Hardware write protect pin (WP)
  • Self-timed write cycle (5ms page write)
  • Sequential read function for fast data retrieval
  • 3 address pins for up to 8 devices on the same bus

Applications

  • Industrial equipment configuration storage
  • Consumer electronics parameter retention
  • Automotive ECU calibration data
  • Communication module settings backup
  • Medical device patient data logging

The BR24G512FJ-3AGTE2 from ROHM Semiconductor is a 512Kbit (64K x 8-bit) serial EEPROM that communicates via the I2C bus interface. It supports standard (100kHz), fast (400kHz), fast-plus (1MHz), and high-speed (3.4MHz) modes, providing flexibility across a wide range of system clock speeds. The device operates from 1.7V to 5.5V, making it compatible with both low-voltage logic and traditional 5V systems. With a page size of 128 bytes and a write cycle time of 5ms, it enables efficient block data updates. The BR24G512 series offers exceptional reliability with 1 million write cycles per byte and data retention of up to 100 years at 85C. The WP pin provides hardware write protection, while the software write protect function allows selective block protection. Three address pins (A0, A1, A2) enable up to eight devices to share the same I2C bus, expanding system storage capacity.

The BR24G512FJ-3AGTE2 operates as a slave device on the I2C bus. Communication begins with a START condition followed by the device address byte (1010+A2+A1+A0+R/W). During a write operation, the master sends the 16-bit memory address followed by up to 128 bytes of data; the device internally handles the programming cycle within 5ms. During a read operation, after the address is set, the device outputs data sequentially with automatic address incrementing for continuous reads. The write protect (WP) pin, when asserted high, prevents any write operations to the entire memory array. The software write protect feature allows locking of the upper quarter, upper half, or entire array through a specific sequence of control commands.

Pin Name Function
1 A0 Address Input 0
2 A1 Address Input 1
3 A2 Address Input 2
4 VSS Ground
5 SDA Serial Data I/O
6 SCL Serial Clock Input
7 WP Write Protect Input
8 VCC Power Supply
  • Industrial equipment: Store calibration coefficients and configuration parameters that must survive power cycles
  • Consumer electronics: Retain user preference settings, channel presets, and firmware flags in TVs and audio systems
  • Automotive systems: Log diagnostic data and store ECU calibration maps with 1M-cycle endurance
  • Communication modules: Backup RF frequency tables, modulation parameters, and network credentials
  • Medical devices: Record patient session data and device operating history for regulatory compliance
Model Brand Capacity Interface Package
AT24C512C-SSHL-T Microchip 512Kbit I2C 1MHz SOIC-8
24LC512-I/SN Microchip 512Kbit I2C 400kHz SOIC-8
FM24CL64-G Infineon/Cypress 64Kbit F-RAM I2C 1MHz SOIC-8
MB85RC256V Fujitsu 256Kbit F-RAM I2C 1MHz SOIC-8
CAT24C512WI-GT3 onsemi 512Kbit I2C 400kHz SOIC-8
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Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

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5. Local Pickup in Shenzhen

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Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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