DS1220AD-200+

Series:	--
Packaging:	Tube
Part Status:	Active
Memory Type:	Non-Volatile
Memory Format:	NVSRAM
Technology:	NVSRAM (Non-Volatile SRAM)
Memory Size:	16Kb (2K x 8)
Write Cycle Time - Word, Page:	200ns
Access Time:	200ns
Memory Interface:	Parallel
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	0°C ~ 70°C (TA)
Mounting Type:	Through Hole
Package / Case:	24-DIP Module (0.600", 15.24mm)
Supplier Device Package:	24-EDIP
Base Part Number:	DS1220A

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Introduction

The DS1220AD-200+ is a non-volatile memory integrated circuit that is used in memory systems, such as in computers and embedded systems. It is a derivative of the DS1220A, which was initially released by Dallas Semiconductor in 1991. The DS1220AD-200+ is an improved version of the original, featuring improvements in write protection, additional addressing control, and reduced pin count. The chip is composed of a number of memory cells, which can store data permanently, even when powered off.

Application Field

Because of its non-volatile memory characteristics, the DS1220AD-200+ can be used in a variety of applications. It is ideal for embedded systems, such as those in medical devices, industrial controls, and automotive electronics, where it can be used to store data across shutdowns. It is also used in embedded system debugging, allowing data to be stored or retrieved on power-down. Additionally, the chip can be used for various types of secure storage, including cryptographic keys and passwords.

Characteristics

The DS1220AD-200+ has a number of distinct characteristics that make it suited for a variety of applications. Its power consumption is low, at only 2500uW, which is ideal for battery-powered applications. It has an operating temperature range of 0°C to +70°C, making it suitable for use in a wide range of environments. Additionally, it features write protection, allowing data to be stored in a safe and secure manner.

Advantages

The DS1220AD-200+ has a number of advantages over other non-volatile memory solutions. Its low power consumption makes it particularly suitable for battery-operated applications, and its write protection makes it ideal for secure data storage. Additionally, its wide operating temperature range makes it suitable for use in a range of environments. Finally, its reduced pin count makes it easier to integrate into systems.

Working Principle

The DS1220AD-200+ is composed of a number of memory cells, which store data permanently, even when powered off. Each cell is composed of two transistors which store a single bit of data. When a voltage is applied to the control line, the transistors are turned on and the data is written to the cell. In order to retrieve the data, the control line is opened, and the voltage that is present on the cell\'s output line is then read.

Conclusion

The DS1220AD-200+ is a non-volatile memory integrated circuit, which is used in memory systems. It has a number of characteristics and advantages that make it suitable for embedded systems, industrial controls, and secure data storage. Its working principle is simple, with data being written to and retrieved from memory cells using a control line.

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