AT93C66-10SC

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AT93C66 memory chips are integrated into many embedded systems today, offering a reliable and cost-effective way to store data. Specifically, the AT93C66-10SC is a commonly-used non-volatile memory that is both high-density and low-power. It is popularly employed in appliance control modules, audio and video equipment, computers, and many other electronic devices. This article will discuss the general working and application fields of the AT93C66-10SC memory chip.

Overview

The AT93C66-10SC belongs to the SDP family of memory products from Atmel Corporation. It is an eight-pin device with a maximum operating temperature of +125°C. It is also a non-volatile memory device, meaning that it does not need to be re-programmed after every power cycle. This chip is a serial EEPROM, meaning that its components are connected in a single row, rather than in a matrix. Thedevice has an operating voltage range of 2.7V-5.5V and utilizes the I2C two-wire addressable serial interface for communication.

The AT93C66-10SC is available in two package variations: a surface-mount package and a through-hole package. The surface-mount package allows for straightforward installation in printed circuit boards (PCBs). The through-hole package, on the other hand, is more suitable for use in applications that require a higher level of ruggedness, such as automotive systems. It also has a greater range of flexibility in terms of the wire connection requirements. Both packages offer the same performance and features. This chip measures 3.2mm x 2.5mm and weighs approximately 0.05g.

Working Principle

The AT93C66-10SC works by storing information as electrical charges on storage elements, commonly known as cells. These cells are accessed and programmed by electrical pulses that move through the device’s two wires. The two wires are the serial data (SDI) and the serial clock (SC). The SDI is responsible for sending out commands and receiving data. The SC, on the other hand, is responsible for synchronising read/write instructions and controlling the chip’s overall operations. It is this two-wire system that allows for communication between the chip and the external hardware.

The chip also supports an external hardware-based data protection mechanism. To activate this feature, a hardware-based protection pin can be set to either “low” (disabled) or “high” (enabled). When activated, this protection pin will prevent modifications to the device’s contents. The chip also features advanced write protection mechanisms, such as preventing inadvertent write cycles. This feature ensures that any accidental changes due to EMI or similar phenomena are quickly detected and corrected.

Application Fields

The AT93C66-10SC is typically used in applications demanding a cost-effective and reliable form of data storage. It is mainly used in consumer electronics, automobiles, and industrial machines. Due to its reliable performance and low power consumption, this chip is a popular choice for high-reliability applications. It is suitable for a diverse range of applications, including process control and management systems, home appliance control modules, car audio systems, video equipment setups, computer hard disk drive controllers, and more.

The chip is also often employed in applications that require resistance to extreme temperatures and electrical noise. These include automotive applications and oil and gas infrastructure systems. The chip’s advanced write protection circuitry makes it suitable for use in safety-critical environments, as it ensures that any accidental changes due to EMI or similar phenomena are quickly detected and corrected. Finally, its two package options (surface-mount and through-hole) make it easy to use in both printed circuit boards and other mechanical support structures.

Conclusion

The AT93C66-10SC is an integrated memory chip that is suitable for a variety of applications. It offers reliable performance in temperatures up to 125°C and is protected against electrical noise and other interferences. The chip also features advanced write protection circuitry, making it suitable for use in safety-critical applications. It is employed in a range of devices and circuits, including home appliance control modules, car audio systems, hard disk drive controllers, process control and management systems, and many more.

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