AT49BV002T-90JC

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Memory Type:	Non-Volatile
Memory Format:	FLASH
Technology:	FLASH
Memory Size:	2Mb (256K x 8)
Write Cycle Time - Word, Page:	50µs
Access Time:	90ns
Memory Interface:	Parallel
Voltage - Supply:	2.7 V ~ 3.6 V
Operating Temperature:	0°C ~ 70°C (TC)
Mounting Type:	Surface Mount
Package / Case:	32-LCC (J-Lead)
Supplier Device Package:	32-PLCC
Base Part Number:	AT49BV002

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Introduction

AT49BV002T-90JC is a type of Memory that is widely used in many applications due to its performance and reliability. It is a 16Mbit (2MB x 8 bits) high-performance static random access memory (SRAM) based on CMOS technology. AT49BV002T-90JC has an operating frequency of 90Mhz and provides a 3.2ns data access time. It also has a high data retention time of greater than 20 milliseconds. With the help of its on-chip error correction code, this device can provide reliable access to stored data.

Applications

AT49BV002T-90JC Memory can be used in a wide range of applications. Some of these include:

• Automotive
  • In-car entertainment systems
  • Infotainment systems
  • Safety systems
  • ABS (Anti-lock Braking Systems)
• Industrial
  • Factory automation systems
  • Robotic systems
  • Machine tools
  • Process control systems
• Consumer
  • GPS navigation systems
  • TV set-top boxes
  • Home entertainment systems and game consoles

Working Principle

The working principle of AT49BV002T-90JC Memory can be explained in four parts.

• Write Cycle
  • The data is written to the memory cell by applying a voltage higher than the noise margin.
  • When the applied voltage exceeds a certain threshold, the data is stored in the memory cell.
  • The voltage is then removed, and the data remains stored in the cell.
• Read Cycle
  • The data stored in the memory cell is read by applying a voltage higher than the noise margin.
  • The voltage is removed, and the data remains stored in the cell.
• Refresh Procedure
  • A periodic voltage is applied to the memory cell to ensure that the stored data is not lost.
  • This is done by refreshing the data at regular intervals.
• Error Correction
  • AT49BV002T-90JC Memory employs an on-chip error correction code (ECC) to provide reliable access to stored data.
  • The ECC is used to detect and correct any errors that occur when accessing the memory cell.

Conclusion

AT49BV002T-90JC Memory is a reliable and high-performance device that is suitable for a wide range of applications. It has a write cycle, read cycle, refresh procedure, and on-chip error correction code, which make it highly reliable for storing and accessing data. AT49BV002T-90JC Memory can be used in automotive, industrial, and consumer applications.

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