FM24C64B-G

Memory IC Overview

The FM24C64B-G is a 64-kilobit Ferroelectric Random Access Memory (FRAM) device manufactured by Cypress Semiconductor. It features an organization of 8K words by 8 bits and utilizes a two-wire I2C interface for communication. The component supports a maximum clock frequency of 1 MHz with a random access time of up to 550 ns. It operates within a supply voltage range of 4.5V to 5.5V and functions across an industrial temperature range from -40°C to +85°C. The memory is housed in an 8-pin SOIC surface-mount package.

Memory IC Feature Summary

• Non-volatile data retention utilizing ferroelectric film technology without requiring write-verify cycles
• High endurance capability suitable for applications demanding frequent data updates
• Low power consumption characteristics compatible with battery-operated systems
• Immunity to magnetic fields and radiation interference

Memory IC Applications

• Smart card identification and security modules
• Industrial control system data logging
• Portable electronic devices requiring rapid state retention
• Automotive sensor data storage

Memory IC Procurement Notes

Verify the manufacturer origin, as Infineon acquired Ramtron International Corporation, which originally developed this FRAM technology. Confirm that the specific part number corresponds to the standard SOIC-8 package variant rather than tape-and-reel or leaded versions. Ensure compliance with current environmental directives applicable to the production batch.

Memory IC Selection Notes

Select this component when high-speed write operations are critical compared to traditional EEPROM technologies. It is appropriate for designs requiring unlimited write endurance and low standby power. Consider the I2C interface compatibility with the host microcontroller and ensure the operating voltage aligns with the 4.5V to 5.5V specification range.

Memory IC Part Context

This device belongs to the FM24C series of non-volatile memory products. It combines the speed and durability of RAM with the non-volatility of ROM. The technology replaces conventional flash or EEPROM in scenarios where write latency and cycle life are limiting factors. It serves as a robust solution for maintaining critical system parameters during power fluctuations.

Memory IC Replacement Considerations

The FM24CL64B-G is a documented equivalent variant within the same product family. Verify pinout compatibility and electrical specifications before substitution. Other manufacturers offer functionally similar FRAM devices, but direct pin-to-pin replacements require careful validation of timing parameters.