■ DESCRIPTION
MB85RS4MTY is a FeRAM (Ferroelectric Random Access Memory) chip in a configuration of 524,288 words x 8 bits, using the ferroelectric process and silicon gate CMOS process technologies for forming the nonvolatile memory cells. This product is specifically targeted for high-temperature environment such as automobile applications.
This FeRAM adopts the Serial Peripheral Interface (SPI).
The FeRAM is able to retain data without using a back-up battery, as is needed for SRAM.
The memory cells used in this FeRAM can be used for 1013 read/write operations, which is a significant improvement over the number of read and write operations supported by Flash memory and E2PROM.
As MB85RS4MTY does not need any waiting time in writing process, the write cycle time of this memroy is much shorter than that of Flash memories or E2PROM.
■ FEATURES
- Bit configuration: 524,288 words x 8 bits
- Special Sector Region: 256 words x 8 bits
In this region, data storage after (by) three times reflow based on
JEDEC MSL-3 standard condition is guaranteed.
- Unique ID
- Serial Number: 64 bits
In this region, data storage after (by) three times reflow based on
JEDEC MSL-3 standard condition is guaranteed.
- Serial Peripheral Interface : SPI (Serial Peripheral Interfaces)
Correspondent to SPI mode 0 (0, 0) and mode 3 (1, 1)
- Operating frequency: 50 MHz (Max)
- High endurance: 1013 times / byte
- Data retention: 50.4 years (+85 ℃) 13.7 years (+105 ℃)
4.2 years (+125 ℃) or more
Under evaluation for more than 4.2 years(+125 ℃)
- Operating power supply voltage : 1.8 V to 3.6 V
- Low power consumption : Operating power supply current 4 mA (Max@50 MHz)
Standby current 350 uA (Max)
Deep Power Down current 30 uA (Max)
Hibernate current 14 uA (Max)
- Operation ambient temperature range : + 40 ℃ to +125 ℃
- Package
8-pin plastic DFN 5mm x 6mm
RoHS compliant
■ Application
The series of FeRAMs is especially designed for automotives. but still has a wide range of applications, such as industrial controllers, industrial instruments, ADAS, Drones, Meters, Robots, Automotives, BMS, TPMS, E-tags, Monitoring, E-tags, Asset Tracking, Servo Motors, Power monitoring, Circuit Breakers, Chiller, numercial control machine, T-box, EV chargers, medical equipment, unltrasonic intruments, diagnostic devices, charing pile, E-mobility, and so on.
■ The SPI Models for FeRAM for Automotives
Fujitsu FeRAM Serial SPI for Automotives includes, MB85RS4MTY, MB85RS4MLY, MB85RS2MTY, MB85RS2MLY, MB85RS1MTY, MB85RS1MLY, MB85RS512TY, MB85RS256TY, MB85RS128TY, MB85RS64VY. Pleaes kindly go to turn to the relateive link for the details.
The ordering P/N of this series will be MB85RS4MTYPF-G-BCE1, MB85RS4MTYPF-G-BCERE1, and MB85RS4MTYPN-G-AWEWE1, MB85RS4MTYPN-GS-AWEWE1.
Fujitsu FERAM for automotives
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