R1EX24032ASAS0I#S0 – 32Kbit I2C EEPROM – Renesas Electronics

Optimize your embedded systems with the R1EX24032ASAS0I#S0 serial EEPROM from Renesas Electronics. This high-reliability non-volatile memory IC delivers efficient data storage with ultra-low power consumption and broad voltage compatibility. PCX ensures genuine Renesas components with same-day shipping and dedicated technical support.

Key Features

• Memory Size: 32Kbit (4K x 8 organization)
• Interface: I²C-compatible, 400kHz clock frequency
• Voltage Range: 1.8V to 5.5V operation
• Write Speed: 5ms word/page write cycle time
• Robust Design: -40°C to +85°C operating temperature
• Compact Form: 8-SOIC surface-mount package

Technical Specifications

This EEPROM utilizes industry-standard I²C serial communication for simplified board design. Its 900ns access time ensures rapid data retrieval, while the non-volatile technology guarantees data retention without power. The device features hardware write protection and supports sequential read operations. Conforms to Renesas’ automotive-grade quality standards (note suffix “I” in part number).

Typical Applications

• Industrial sensor calibration data storage
• Consumer electronics configuration settings
• Medical device parameter retention
• Automotive subsystem memory
• IoT device firmware backup

About Renesas Electronics

Renesas Electronics Corporation is a global leader in advanced semiconductor solutions, renowned for innovation in microcontrollers, analog, and power devices. With over two decades of memory technology expertise, Renesas delivers components meeting stringent automotive and industrial reliability standards.

The company’s quality management systems are IATF 16949 certified, ensuring consistent performance in mission-critical applications. Renesas’ EEPROM portfolio undergoes rigorous stress testing for extended lifecycle support, making them preferred components for design engineers worldwide.

About Serial EEPROMs

Serial EEPROMs provide critical non-volatile memory functionality using minimal board space and power. Unlike parallel memory, their two-wire interface (I²C or SPI) simplifies PCB routing and reduces component count. These devices store configuration parameters, calibration tables, and user settings when system power is removed.

Modern EEPROMs offer byte-level rewrite capability with >1 million write cycles, making them ideal for frequently updated data. Their wide voltage tolerance supports battery-backed and energy-harvesting applications where power stability varies. Automotive and industrial certifications ensure operation in harsh environmental conditions.

Packaging Options

Available in Tape & Reel (TR), Cut Tape (CT), and Digi-Reel® formats for prototyping or volume production. Specify packaging preference at checkout.

Frequently Asked Questions

Q: Does this EEPROM support 100kHz and 400kHz I²C modes?
A: Yes, it’s fully compatible with standard (100kHz) and fast (400kHz) I²C modes.

Q: What is the typical data retention period?
A: 100 years data retention at 25°C per Renesas specifications.

Q: Is write protection included?
A: Yes, hardware write protection (WP pin) prevents accidental data modification.

Q: Can it operate at 3.3V in a 5V system?
A: Absolutely. The 1.8V–5.5V range allows seamless integration in mixed-voltage designs.

Q: Are there special handling requirements for moisture sensitivity?
A: This MSL-3 rated device requires baking if exposed beyond 168 hours ambient. PCX ships in sealed dry packs.

Q: How does EEPROM differ from flash memory?
A: EEPROMs allow byte-level erasure/writes, while flash typically erases in blocks. EEPROMs excel for small, frequent data updates.

Product images are representational. Refer to datasheet for exact dimensions. Download Full Datasheet

Ready to Integrate Reliable Memory?

PCX guarantees authentic Renesas components with same-day shipping from certified ESD-safe warehouses. Order your R1EX24032ASAS0I#S0 EEPROM today for guaranteed stock and direct technical support!