0LRAM-001-XTP

Overview

The onsemi 0LRAM-001-XTP is a 256K-bit (32K x 8) CMOS Serial EEPROM housed in a 4-WLCSP package. It features an I2C-compatible serial interface for data communication. The device operates with a supply voltage range of 1.7V to 5.5V and supports standard and fast-mode I2C clock frequencies up to 400kHz. It offers byte-write and page-write capabilities, with a page size of 16 bytes. The memory array is organized into two pages, allowing for efficient data storage in space-constrained applications.

Feature Summary

• Compact 4-WLCSP footprint suitable for dense PCB layouts
• I2C serial interface simplifies system integration
• Wide operating voltage range supports various logic levels
• Hardware write protection ensures data integrity

Applications

• Consumer electronics requiring non-volatile configuration storage
• Industrial control systems needing parameter retention
• Automotive infotainment modules for calibration data

Procurement Notes

Verify the specific suffix 'XTP' indicates the correct tape-and-reel packaging and temperature grade required for your assembly process. Confirm that the I2C address bits are compatible with your system's bus topology. Check for any recent Product Change Notifications (PCNs) regarding manufacturing site transfers or material updates to ensure continuity with existing designs.

Selection Notes

Select this component when a small form factor is critical alongside low-power non-volatile storage needs. Compare against larger packages like SOIC if board space permits, as they may offer easier manual handling. Ensure the target application does not require higher density than 256K-bits, as upgrading may necessitate a different pinout or interface protocol.

Part Context

This part belongs to onsemi's family of serial EEPROMs designed for general-purpose data storage. It complements other devices in the lineup by offering a balance between capacity and physical size. The WLCSP format distinguishes it from traditional leaded packages, targeting modern surface-mount assembly trends in compact electronic devices.

Replacement Considerations

Direct substitutes include other 256K-bit I2C EEPROMs in WLCSP packages from manufacturers such as Microchip or STMicroelectronics, provided pinouts and electrical characteristics match. Verify compatibility with existing firmware addressing schemes before swapping components.