AT49BV3218T-90TI

Series:	--
Packaging:	Tray
Part Status:	Obsolete
Memory Type:	Non-Volatile
Memory Format:	FLASH
Technology:	FLASH
Memory Size:	32Mb (4M x 8, 2M x 16)
Write Cycle Time - Word, Page:	20µs
Access Time:	90ns
Memory Interface:	Parallel
Voltage - Supply:	2.65 V ~ 3.3 V
Operating Temperature:	-40°C ~ 85°C (TC)
Mounting Type:	Surface Mount
Package / Case:	48-TFSOP (0.724", 18.40mm Width)
Supplier Device Package:	48-TSOP
Base Part Number:	AT49BV3218

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Memory: AT49BV3218T-90TI Application Field and Working Principle

The AT49BV3218T-90TI is a 4-Mbyte static random access memory (SRAM) specifically designed for very fast read and write operations. It is a member of a family of memory integrated circuits (integrated circuit memories - ICM) developed by Atmel Corporation. This memory is suitable for applications requiring fast data access rates and relatively wide bus widths. It is particularly applicable to digital signal processing (DSP) and other high-speed applications.

Static RAM (SRAM) Technology

Static RAM is a type of RAM that uses a static memory cell, which is a flip-flop, to store each bit of data. Once the cell stores the data bit, it can hold this data bit even if power is removed. SRAM utilizes a six-transistor circuit to store one bit of data, which is relatively less space-consuming compared to a DRAM circuit. It also requires less power, which makes it more suitable for low power applications.SRAM is a form of random access memory (RAM) that uses a static memory cell to store a data bit. This type of memory is the preferred type for applications that require low power consumption and fast access times.

Features and Benefits of AT49BV3218T-90TI

The AT49BV3218T-90TI is a combination of the AT49BV3218T-90TI and an integrated multi-port SRAM controller. The integrated controller simplifies system design, improves density, and speeds up the process of accessing data stored in the memory. It offers a wide array of features and benefits, including:• High Performance: The AT49BV3218T-90TI provides access times as low as 25 ns, providing memory operations with low latency and fast transfer rates. • Low Power: The AT49BV3218T-90TI consumes very little power during operation, making it suitable for battery-powered applications. • Flexible Architecture: The AT49BV3218T-90TI can support up to eight separate ports, allowing for simultaneously accessing multiple regions of the memory. • High Density: The AT49BV3218T-90TI offers up to 4 Mbytes of memory in a single package, providing for extensive storage capacity. • Robustness: The AT49BV3218T-90TI is designed for industrial applications, featuring enhanced reliability and quality assurance.

Applications of AT49BV3218T-90TI

The AT49BV3218T-90TI is suitable for a wide range of applications requiring fast access, low power consumption, and high memory density. It is applicable to digital signal processing (DSP) and other high-speed applications, including embedded systems, factory automation, and medical equipment, among others.

Working Principle of AT49BV3218T-90TI

The AT49BV3218T-90TI is a single-chip solution comprising a 4-Mbyte SRAM and an integrated SRAM controller. The SRAM memory is organized into separate 512-byte sections, and each section can be independently accessed. The controller is designed to handle read and write operations, as well as multiple simultaneous access requests from different ports.The AT49BV3218T-90TI is designed for high performance, making it suitable for applications requiring fast access times. The AT49BV3218T-90TI communicates with the memory via several ports, which are designed to minimize latency. The controller supports multiple concurrent accesses from the same port or from different ports. The AT49BV3218T-90TI also features a signaling protocol which ensures reliable communication between the memory and the controller. The signaling protocol consists of a start and an end bits, as well as an acknowledgment bit. The protocol is used to synchronize the data transfer via the ports.

Conclusion

The AT49BV3218T-90TI is a high-performance 4-Mbyte SRAM designed for applications requiring fast data access and low power consumption. The integrated SRAM controller simplifies system design and provides an efficient memory access. It is suitable for applications such as embedded systems, factory automation, and medical equipment, among others. The working principle of the AT49BV3218T-90TI is based on a signaling protocol which ensures reliable communication between the memory and the controller, enabling fast and reliable data transfer.

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