R1EX24128BTAS0I#S0

Memory IC Overview

The R1EX24128BTAS0I#S0 is a 128Kbit (16K x 8) Electrically Erasable and Programmable Read-Only Memory (EEPROM) manufactured by Renesas Electronics. It utilizes a two-wire serial interface compatible with the I²C bus protocol, supporting clock frequencies up to 400kHz at voltages between 1.8V and 5.5V. The device employs advanced MONOS memory technology for high reliability and low power consumption, featuring automatic page write capabilities of 128 bytes per cycle. It operates within an industrial temperature range of -40°C to +85°C and is housed in an 8-pin TSSOP package.

Memory IC Feature Summary

• Utilizes advanced MONOS memory technology combined with CMOS process for enhanced reliability and low power operation.
• Supports high-speed two-wire serial communication via standard I²C bus interface.
• Features automatic page write function allowing 128-byte data transfer per write cycle.

Memory IC Applications

• Data logging in industrial monitoring systems
• Configuration storage in consumer electronics
• Parameter retention in automotive control units

Memory IC Procurement Notes

Verify component authenticity through authorized Renesas distributors or certified suppliers. Confirm the specific suffix #S0 indicates the tape and reel packaging format suitable for automated surface-mount assembly. Ensure compliance with RoHS directives and check for moisture sensitivity level handling requirements during storage and reflow soldering processes.

Memory IC Selection Notes

Select this component when a non-volatile memory solution requires byte-level random access with I²C connectivity. It is suitable for designs needing moderate capacity with low standby current and robust data retention characteristics. Consider the TSSOP-8 package constraints and voltage compatibility with the host microcontroller's I/O levels before integration.

Memory IC Part Context

This part belongs to the R1EX24xxxB series of serial EEPROMs from Renesas. The series is characterized by its use of MONOS technology, offering superior endurance and data retention compared to traditional floating-gate EEPROMs. The R1EX24128 variant specifically provides 128Kbit density, balancing cost and performance for embedded applications requiring frequent write cycles.

Memory IC Replacement Considerations

Direct pin-to-pin replacements may include other 128Kbit I²C EEPROMs from manufacturers such as Microchip or STMicroelectronics, provided they match the voltage range and interface timing. Verify that any substitute supports the same page write size and operating temperature range to ensure functional equivalence without circuit redesign.