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  3. RAMXEED (旧:富士通セミコンダクターメモリソリューション株式会社 2025/1/1に社名変更しました)
  4. Developed a 4M-bit FeRAM with a maximum memory capacity operating at 125℃.
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  • Jul 16, 2020
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Jul 16, 2020

Developed a 4M-bit FeRAM with a maximum memory capacity operating at 125℃.

RAMXEED RAMXEED (旧:富士通セミコンダクターメモリソリューション株式会社 2025/1/1に社名変更しました)
■Non-volatile memory for automotive and industrial machinery that guarantees reliability in high-temperature environments The “MB85RS4MTY” is a non-volatile memory with a doubled memory capacity of 4M bits and operates with an SPI interface at a wide power supply voltage range of 1.8V to 3.6V. Even in high-temperature environments of 125°C, the operating current is kept to a maximum of 4mA (at 50MHz operation), and the power-down current is a maximum of 30µA, contributing to low power consumption in environmentally conscious systems. ■Main specifications - Product name: MB85RS4MTY - Capacity (memory configuration): 4M bits (512K x 8 bits) - Interface: SPI (Serial Peripheral Interface) - Operating frequency: 50MHz (maximum) - Operating power supply voltage: 1.8V to 3.6V - Operating temperature range: -40°C to +125°C - Write/read guarantee cycles: 10 trillion cycles - Package: 8-pin DFN, 8-pin SOP
8-pin DFN (front and back) of MB85RS4MTY
8-pin DFN (front and back) of MB85RS4MTY
Examples of applications for the new product (automotive, industrial machinery)
Examples of applications for the new product (automotive, industrial machinery)
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Development of 4M-bit FeRAM with Maximum Memory Capacity Operating at 125℃
Fujitsu Semiconductor Memory Solutions has developed the 4M-bit FeRAM "MB85RS4MTY," which has the maximum memory capacity as a FeRAM product guaranteed to operate at 125℃, and has started providing evaluation samples. This product is a non-volatile memory that guarantees low operating current and 10 trillion data write cycles even in high-temperature environments of 125℃. It is optimal for automotive applications, such as advanced driver-assistance systems (ADAS), and for industrial robots.

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IPROS31399828249680153667.jpeg

2M-bit FeRAM "MB85RS2MLY"

Non-volatile memory suitable for advanced automotive markets such as ADAS.

The MB85RS2MLY guarantees 10 trillion data rewrites in a temperature range of -40℃ to +125℃. This characteristic makes it suitable for applications that require real-time data recording. For example, it is possible to record data every 0.1 seconds for 10 years (over 3 billion times). Additionally, the reliability testing of this product complies with AEC-Q100 Grade 1, a high-quality standard known as automotive grade. Therefore, from both the perspective of data write cycles and reliability, this product is well-suited for applications that continuously detect and record vehicle conditions, such as ADAS. ■ Main Specifications - Product Name: MB85RS2MLY - Capacity (Memory Configuration): 2M bits (256K x 8 bits) - Interface: SPI (Serial Peripheral Interface) - Operating Frequency: 50MHz (maximum) - Operating Supply Voltage: 1.7V to 1.95V - Operating Temperature Range: -40℃ to +125℃ - Guaranteed Write/Read Cycles: 10 trillion (10^13) - Package: 8-pin SOP, 8-pin DFN - Quality Standard: AEC-Q100 Grade 1 compliant

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System memory

Trust and Performance - High Quality, High Reliability Memory

Our company has been providing high-quality and high-performance memory LSI, which is essential for high-function electronic devices, for many years. In recent years, we have been offering memory products that are compact, high-performance, and low-power, as well as proposing optimal solutions that combine these memory products.

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RAMXEED
Information and Communications
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RAMXEED (旧:富士通セミコンダクターメモリソリューション株式会社 2025/1/1に社名変更しました)
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Please be sure to introduce this to the management and general affairs department. The first step towards improving operational efficiency and reforming work styles that every company needs! The basics of attendance management.

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Attendance management is something that is expected of every company and should be addressed. When asked, "Are you doing it?" it might be more concerning to hear, "Are you doing it correctly?" which could make some responsible parties feel anxious. You may be using time cards for clocking in, but are unsure about overtime calculations. You might be having employees input data into Excel, but how does that stand in terms of legal compliance? You may be managing paid leave on paper, but there’s no room for double-checking. Employee resignations may be ongoing, but could this be due to overwork...? Why not review the various pros and cons of different attendance management methods and revisit the important aspects of attendance management from the "basics"?

Jul 09, 2026

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We have released the materials on 'Attendance issues pointed out by the Labor Standards Inspection Office, and this was the common point!'

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We have released a white paper titled "The Common Points of Attendance Issues Highlighted by the Labor Standards Inspection Office." This document provides a clear explanation of the challenges in attendance management that are likely to be pointed out by the Labor Standards Inspection Office, using specific examples. It addresses operational risks commonly seen in many companies, such as attendance aggregation in Excel, timekeeping management through self-reporting, insufficient management of paid leave, and rounding of overtime hours. Additionally, it introduces points that are often highlighted in inspections by the Labor Standards Inspection Office, such as "objective understanding of working hours," "unpaid overtime," "management of the 36 Agreement limits," and "compliance with the obligation to take 5 days of annual leave." This content can serve as an opportunity for companies that think "there have been no problems so far, so it's fine" to review their operations. Companies considering improving the efficiency of attendance management and strengthening compliance are encouraged to take a look. If you have any additional questions, please feel free to let us know.

Jul 08, 2026

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[Please introduce this to the management and general affairs department] With a checklist for evaluation! The back office system overturns the "single manufacturer option"! Are you aware of the benefits of adopting an agency?

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What do the members of the back office department consider when choosing or replacing a system? If the same product is handled by both a "manufacturer" and a "distributor," how do you feel about it? "Distributor"? Isn't it cheaper to buy directly from the manufacturer? It's obvious that receiving direct service is better, right? ...Is that really the case? In the materials we are releasing this time, we will explain the benefits of "introducing a distributor." Here’s a preview of the materials: 【If you’re going to choose, you should leverage the power of a distributor that handles the ○○ system!】 【Make the distributor your ○○○○○○○ and use them to the fullest!】 Along with these points, we are offering a "Distributor Evaluation Checklist" that will be your strong ally, free of charge! Please make good use of it.

Jul 07, 2026

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Metalworking cutting! Profound cutting techniques.

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Cutting in metal processing is not just a process of simply dividing materials. It is necessary to choose the appropriate method according to the type and thickness of the material, as well as the required precision, whether it be laser cutting, plasma cutting, or mechanical cutting. Additionally, fine adjustments of conditions during cutting and management of distortion due to heat greatly depend on the experience and skills of the operator. How does high-quality cutting affect subsequent welding, bending processes, and the quality of the final product? For more detailed explanations, please visit the Kando Industrial website! You can find the continuation through the related links.

Jul 07, 2026

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Notice of the seminar on the new energy-saving standard "GX ZEH" recorded and streamed.

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This is an announcement for a recorded seminar from Zai Ju Business Co., Ltd. In this seminar, we will clearly explain the definitions and measures of the new energy-saving standards "GX ZEH" and "GX ZEH-M." You can watch it anytime during the period, so please join us!

Jul 07, 2026

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