AK93C55CUA

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Introduction

The AK93C55CUA is a 8-bit CMOS static RAM manufactured by Panasonic. It contains 4k-byte of static RAM with address and data bus compatibility to the industry standard 8051 microcontroller. It is suitable for applications that require high accuracy and low power consumption. In this article, we\'ll discuss the application field and working principle of the AK93C55CUA.

Application Field

The AK93C55CUA is a type of memory that is widely used in different areas. It can be used for automotive systems like airbag controllers, sensors, and injection systems. It is also used in communications equipment, including GSM and satellite communications equipment. Other applications include medical appliances, intelligent instrumentation, embedded systems, and digital audio equipment.

The AK93C55CUA is also used in handheld and portable electronics, as it has a low power consumption and a low standby current. This makes it ideal for applications like radio receivers and transceivers, gaming consoles, electronic books, digital cameras, mobile phones, and media players.

Working Principle

The AK93C55CUA is a static RAM, which means that its data is retained even when the power is disconnected. It is composed of three components: memory cells, shift registers and address buffers. The memory cells are responsible for storing the data in the RAM, while the shift registers and address buffers provide address and data routing for faster read and write operations.

The memory cells are organized in 4K-byte blocks, with 256 bytes per block. Each memory cell contains an amplifier, a transistor and a pull-up resistor. When a bit of data is read or written, the amplifier allows the data to pass through the transistor. The pull-up resistor is used to ensure that the data is correctly retained once it has been written.

The AK93C55CUA provides access times of 45 ns at 12V, and 35 ns at 5V. It also has a low power consumption of 15uA (write mode) and 1uA(read mode) with a standby current of 0.05uA. This makes the AK93C55CUA ideal for battery-operated applications.

Conclusion

The AK93C55CUA is a 8-bit CMOS static RAM manufactured by Panasonic. It is suitable for applications that require high accuracy and low power consumption. It is widely used in automotive systems, communications equipment, medical appliances, intelligent instrumentation and handheld and portable electronics. The memory cells are organized in 4K-byte blocks, with 256 bytes per block. It provides access times of 45 ns at 12V, and 35 ns at 5V, and has a low power consumption with a standby current of 0.05uA.

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