AT24C128N-10SU-1.8

Memory IC Overview

The AT24C128N-10SU-1.8 is a 131,072-bit (16,384 x 8) serial electrically erasable and programmable read-only memory (EEPROM). It operates with a supply voltage range of 1.8V to 3.6V and supports clock frequencies up to 100 kHz at this voltage level. The device utilizes a two-wire serial interface compatible with standard I2C protocols. It features hardware data protection via a write protect pin and supports page writes of up to 64 bytes. The component is housed in an 8-lead JEDEC SOIC package.

Memory IC Feature Summary

• Supports low-voltage operation from 1.8V to 3.6V for power-efficient applications
• Includes Schmitt triggers and filtered inputs to suppress noise on the serial bus
• Provides hardware and software data protection through a dedicated write protect pin
• Enables multiple devices to share a common bus using hardwired address inputs

Memory IC Applications

• Industrial and commercial systems requiring low power consumption
• Data logging and storage of configuration parameters
• Embedded systems utilizing bidirectional data transfer protocols
• Applications necessitating hardware-enforced memory security

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required voltage range and package type. Confirm the device revision and process letter if extended temperature or endurance specifications are critical. Ensure compatibility with existing system voltage levels before integration. Check for lead-free and halogen-free compliance status as indicated by the 'U' designation in the part number.

Memory IC Selection Notes

Select this component when a 128K-bit capacity is required within a compact 8-lead surface-mount package. It is suitable for designs operating strictly within the 1.8V to 3.6V supply range. Consider the 100 kHz maximum clock speed for bus timing constraints. Note that this specific family is not recommended for new designs; consult the AT24C128B datasheet for updated alternatives.

Memory IC Part Context

This EEPROM belongs to the AT24C128/256 family manufactured originally by Atmel Corporation, now Microchip Technology. The device provides non-volatile storage organized as 16,384 words of 8 bits each. It is designed for cascadable operation, allowing up to four devices on a single two-wire bus. The product line emphasizes reliability with high endurance and long data retention capabilities.

Memory IC Replacement Considerations

The datasheet explicitly states that this device is not recommended for new design. Engineers should refer to the AT24C128B datasheet for a modern equivalent. Verify pinout and electrical characteristics against the newer generation part before substitution.