AT27LV040A-90VI

Introduction

The AT27LV040A-90VI is a multi-purpose, 8-bit, 4Mb (compared with 4,194,304 bytes) non-volatile memory module. It is commonly used in embedded systems, industrial control systems and data loggers due to its high reliability and wide range of temperature operating range.

Application Field

Due to its wide range of temperature operating range, the AT27LV040A-90VI is used in many embedded systems. Such applications include: industrial automation, control systems, medical instrumentation, data loggers, automotive, military, and aerospace systems.

The AT27LV040A-90VI is also ideal for automated test systems, instrumentation, and telecommunications equipment. As the component is reliable and has a wide range of temperature range, it is suitable for the harsh conditions these applications may encounter.

Working Principle

The AT27LV040A-90VI is a high performance, non-volatile memory component. It consists of an array of 4,194,304 8-bit words, with a maximum operating frequency of 20 MHz. The component is available in various densities and technologies, with a range of speeds, and is designed for easy interface with other components.

The component accesses data over two power rails: +VCC and ground. This provides a data transfer rate of 640 byte x 16, or 1040 byte x 32 bits. The component is engineered to maximize the overall access time, while minimizing power dissipation. This is accomplished by a unique combination of speed and endurance.

The component features dynamic cell voltage switching, providing greater durability by reducing standby power consumption. It also features a built-in protection scheme to prevent data corruption resulting from unexpected power supply conditions. Furthermore, the component includes an integrated cyclic redundancy check (CRC), ensuring data integrity during read and write operations.

The AT27LV040A-90VI employs a standard JEDEC 5V-only Interface. The device’s internal circuitry enables circuitry stable operation over a wide range of temperatures. This allows the component to be used in embedded systems where extreme temperatures may be encountered.

Conclusion

In conclusion, the AT27LV040A-90VI is a reliable, high performance, non-volatile memory component. It is suitable for a wide range of applications, from embedded systems to automated test systems and instrumentation. The component provides a wide range of temperature operation, as well as an integrated CRC, ensuring data integrity during read and write operations.