FT24C256A-ESR-T

Overview

The FT24C256A-ESR-T is a 256Kbit (32k x 8) serial EEPROM manufactured by Fremont Micro Devices Ltd. It utilizes an I²C interface with a maximum clock frequency of 1 MHz and an access time of 550 ns. The device operates within a supply voltage range of 1.8V to 5.5V and supports a write cycle time of 5 ms per word or page. It is housed in an 8-SOP package and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Supports standard I²C serial communication protocol for data transfer.
• Provides non-volatile storage capability for persistent data retention.
• Operates across a wide industrial temperature range for robust performance.

Applications

• Data logging systems requiring persistent storage
• Configuration memory for embedded controllers
• Calibration data storage in industrial sensors

Procurement Notes

Verify the specific suffix 'ESR-T' corresponds to the 8-SOP package variant when sourcing. Confirm that the required operating voltage aligns with the 1.8V to 5.5V specification. Ensure the design accommodates the 5 ms write cycle time for proper timing management during programming operations.

Selection Notes

Select this component for applications requiring 256Kbit capacity with I²C connectivity. Consider the 8-SOP package constraints for PCB layout. Evaluate the 1 MHz bus speed against system timing requirements. Verify compatibility with the target microcontroller's I²C voltage levels within the specified supply range.

Part Context

This part belongs to the FT24C256A series of serial EEPROMs from Fremont Micro Devices. The series offers various packaging options including TSSOP and SOP variants. These devices are designed for general-purpose non-volatile memory applications where moderate density and standard serial interfaces are sufficient.

Replacement Considerations

Compatible substitutes include other 256Kbit I²C EEPROMs from manufacturers such as Microchip (e.g., 24AA256) or STMicroelectronics (e.g., M24256). Ensure pinout compatibility and voltage level matching before substitution.

FAQ

What is the maximum I²C clock frequency for this device?

The maximum clock frequency is 1 MHz.

Does the FT24C256A-ESR-T support page writes?

Yes, it supports page write operations with a write cycle time of 5 ms.