Fujitsu Semiconductor Limited announced the development of the MB85R4M2T, a 4 Mbit FRAM chip with an SRAM-compatible parallel interface. The new product will be made available in sample quantities starting January 2014. It uses a 44-pin TSOP package compatible with standard low-power SRAM, so it can substitute for SRAM in industrial machinery, office equipment, medical devices, security systems, and other equipment that currently uses SRAM.
FRAM is a type of memory that features both non-volatility, which allows data to be retained even when the power is switched off, and random access, which enables fast data writing. Because FRAM can safely store data that is being written even at sudden power source failures and power outages, it is possible to ensure the protection of parameter information and log data in equipment recorded immediately preceding a power source outage.
Fujitsu Semiconductor has added the 4 Mbit MB85R4M2T, which has an SRAM-compatible parallel interface, to its line of FRAM products. Because it uses a 44-pin TSOP package that is compatible with standard SRAM memory, it can substitute for SRAM, without major change in circuit board design, in any high reliability application using SRAM, such as industrial control units, multi-functional printers, medical devices, and building security systems. In addition, because it stores data with no need for battery power, it contributes to hardware that is more compact, less power-hungry, and lower in total cost.
Features
- Bit configuration: 262,144 words×16 bits
- LB and UB data byte control: Available Configuration of 524,288 words × 8 bits
- Read/write endurance: 1013 times / 16 bits
- Data retention: 10 years (+85 °C)
- Operating power supply voltage: 1.8V to 3.6V
- Low power operation:
- Operating power supply current 20 mA (Max)
- Standby current 150 µA (Max)
- Sleep current 20 µA (Max)
- Operation ambient temperature range: –40 °C to +85 °C
- Package: 44-pin plastic TSOP (FPT-44P-M34), RoHS compliant
