AT45DB321E-MHF-T Integrated Circuits (ICs)

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The AT45DB321E-MHF-T memory is an integrated dataflash memory and belongs to the Microchip’s 3-wire Serial Flash family. It utilizes the same functions and commands as the previous AT45DB321D/AT45DB161D Flash memories, yet at a significantly lower cost due to its smaller memory density. This memory is specifically designed for industrial and commercial applications which require a 3-Volt power supply and low power consumption.

Application Field

The AT45DB321E-MHF-T memory offers embedded system designers a cost-effective and reliable solution for code and data storage. Low power design and minimal output signal loading make this product ideal for electronic products, system instruments, medical devices and consumer products.

It can be used in a variety of applications and configurations including security, automotive, industrial, medical, and consumer products. Security applications can benefit from the durability and reliability of the memory which provides non-volatile storage for key security data. Other applications include code executables and data logging as well as real-time data tracking, secure data management, task scheduling, and monitoring.

Working Principle

The AT45DB321E-MHF-T consists of a 4-Kbyte memory array and a serial control logic block. The memory is organized as 4,096 bytes × 264 pages. Each page consists of six 264-bit Data Registers, eight 8-bit Registers, and two registers named Status Register 1 and 2.

The AT45DB321E-MHF-T memory can be written to or read from in an ergonomic manner with a single 3-wire serial interface or through a parallel or dual-bit interface. In addition, a self-refresh mode helps extend the On-Chip Flash memory endurance up to 10,000 cycles.

The bus protocol supports two-byte address reads – the first byte identifies the page address and the second byte identifies the start address within the page – and up to 264-byte page reads. Page size depending, the memory can also be programmed in one of two page modes.

The AT45DB321E-MHF-T memory is organized as 4,096 bytes × 264 pages. The memory has two separate erase functions, one for the whole memory and another for pages. Its version offers enhanced programming times and power management. This greatly reduces the time needed to write large amounts of data.

The at45db321e-mhf-t memory offers an advanced block locking mechanism, which is designed as an on-the-fly write/erase lock. This gains additional security by uniquely locking every page individually.

The AT45DB321E-MHF-T memory utilizes a low-power die-bonded or nut-mounted 3.2 mm × 3.2 mm plastic packaging. The package is compatible with standard automatic component placement equipment and has an enhanced moisture protection system. This memory meets the RoHS (Restriction of Hazardous Substances) standard and is lead free.

Conclusion

The AT45DB321E-MHF-T memory is an ideal choice for embedded system designers looking for a cost-effective and reliable solution for reliable data storage. With its low power requirements, minimal output signal loading, advanced block locking mechanism, and easy component placement system, this memory is versatile and efficient.

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