M95256-DWDW4TP/K Integrated Circuits (ICs)

Series:	Automotive, AEC-Q100
Packaging:	Tape & Reel (TR)
Part Status:	Active
Memory Type:	Non-Volatile
Memory Format:	EEPROM
Technology:	EEPROM
Memory Size:	256Kb (32K x 8)
Clock Frequency:	10MHz
Write Cycle Time - Word, Page:	4ms
Memory Interface:	SPI
Voltage - Supply:	2.5 V ~ 5.5 V
Operating Temperature:	-40°C ~ 145°C (TA)
Mounting Type:	Surface Mount
Package / Case:	8-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:	8-TSSOP
Base Part Number:	M95256

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Introduction to M95256-DWDW4TP/K

The M95256-DWDW4TP/K is a serial static random access memory (SRAM) device from STMicroelectronics with a capacity of 2Mb. It is a high-end memory device intended for use in high-density, high-performance applications requiring low standby power and fast access speeds.

Application Field and Working Principle

The M95256-DWDW4TP/K is primarily designed for use in embedded applications such as factory automation, computer networks, telecoms, industrial control, and storage systems. It is ideal for applications that require fast read and write speeds, low power consumption, low operating temperature, and shock and vibration resistance.The M95256-DWDW4TP/K uses a static random access memory (SRAM) architecture which is organized into memory cells that are accessed by a bank of address lines and control lines. Each memory cell consists of four transistors and one capacitor, so this architecture provides a reasonable balance between power consumption and performance. The device is capable of operating in zero-power standby mode or in active-like write cycles that are capable of storing data for up to 40 years. It also offers a wide selection of built-in low-level security features.The device operates in a serial-mode configuration, where each access is a read or write operation that transfers 8 bits of data at a time along separate serial lines. This makes it ideal for applications that require small memory devices but need fast access speeds.

Main Features

The M95256-DWDW4TP/K offers a number of advantages over traditional random access memory (RAM) devices. It has a high-end memory density of 2Mb, allowing for the storage of large amounts of data in a small package. Additionally, its zero-power standby mode makes it ideal for applications that require minimal energy consumption, such as mobile devices.The device also offers high-speed access times of up to 25MHz and with a 5µs write cycle, is capable of storing data for up to 40 years. Furthermore, it has an automatic sleep mode that can reduce power consumption to 0.4µA in the low-power configuration. Finally, it features advanced security features such as write protection, sector protection, and read protection.

Conclusion

The M95256-DWDW4TP/K is a high-end memory device intended for use in embedded applications that require fast access speeds, low power consumption, and advanced security features. It features a static random access memory (SRAM) architecture, offering a reasonable balance between performance and power consumption and a high-density 2Mb capacity. Furthermore, it offers a wide selection of advanced features such as write protection, sector protection, automatic sleep mode, and a wide range of low-level security features.

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