93AA76C-I/ST

93AA76C-I/ST Application Field and Working Principle

The 93AA76C-I/ST is a combinational memory chip produced by Atmel Corporation. It is a byte-wide static random access memory (SRAM) device with 256, 512, or 1024 word-bit of addressable storage capacity, depending on the specific model.

The 93AA76C-I/ST is designed to interface directly with microprocessors, microcontrollers, and digital signal processors (DSPs), offering fast access times and low power consumption. The device features two independent address and write inputs that are used to access each word in the memory array. Address and write data must be valid before the /CE, /OE, and /WE are activated.

The 93AA76C-I/ST is also highly configurable and supports asynchronous and synchronous operation, selectable outputs (active-high or active-low), and is expandable with multiple modules. In addition, the chip includes data protection features, including a write inhibit pin, an active-low write protect, and a write-protect pin, that are used to protect data even in hostile environments.

Working Principle

The 93AA76C-I/ST operates on the principle of static random access memory (SRAM). SRAM memory chips are capable of storing information without the need for constant refresh cycles, unlike dynamic RAM (DRAM). SRAM memory also has faster access times than DRAM and is less susceptible to data errors caused by power surges. The 93AA76C-I/ST uses two independent address and write inputs, /CE and /OE, to select and read words in the memory array. Data is then read from the selected address, while /WE is used to initiate and control writing of data to the memory.

Once the read or write operation has begun, the 93AA76C-I/ST utilizes two additional pins, /WE and /WP, to provide extra data protection. The /WE pin is active low, meaning it must be driven low to initiate writing and high to end it. The /WP pin is active high and used to enable or disable write operations and protect data from changes, with weak pull-up resistors provided on each line. This is especially useful in systems that may be subject to power outages or other damaging events.

Application Field

The 93AA76C-I/ST provides extraordinary flexibility for memory integration into a large range of system applications. Its low power consumption and high density memory makes it a great choice for embedded systems, including robotics, automotive, and medical devices. The chip is also compatible with microcontrollers, microprocessors, and digital signal processors, making it a great choice for high-speed and data intensive projects. Additionally, the chip connections allow for easy expansion with multiple modules, making it right for larger projects.

The 93AA76C-I/ST comes with a wide range of features designed to provide the utmost performance, flexibility, and reliability in demanding application environments. Its static random access memory architecture means it can store data without the need for refresh cycles, while its high access speeds and low power consumption make it suitable for a variety of applications. The chip is highly configurable and supports asynchronous and synchronous operation, as well as selectable outputs. Finally, the 93AA76C-I/ST includes built-in data protection features to protect data from damage caused by surrounding hostile environments.