7005S55J8

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Memory Type:	Volatile
Memory Format:	SRAM
Technology:	SRAM - Dual Port, Asynchronous
Memory Size:	64Kb (8K x 8)
Write Cycle Time - Word, Page:	55ns
Access Time:	55ns
Memory Interface:	Parallel
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	0°C ~ 70°C (TA)
Mounting Type:	Surface Mount
Package / Case:	68-LCC (J-Lead)
Supplier Device Package:	68-PLCC (24.21x24.21)
Base Part Number:	IDT7005

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Memory - 7005S55J8 Application Field and Working Principle

Memory is an important component of electronic products. It is an auxiliary electronic device for data storage and retrieval. The most widely used are semiconductor memories. This article introduces a common semiconductor memory, that is, 7005S55J8. 7005S55J8 is an 8-bit ROM designed and produced by Toshiba. It is currently one of the most common ROMs used in the field of electronic products. It is widely used in various electronic products such as television, radio, VCR, and computers.

Features of the 7005S55J8

The main features of 7005S55J8 are listed below:1. The chip has a total storage capacity of 256 bytes, can store up to 65536 8-bit instructions, and each instruction occupies 8 bits of storage space;2. There are 15 bits of program counter, which can generate up to 32768 lines of instructions, making it easier and more flexible to write program code;3. It can support up to 256 I/O port accesses;4. The read time is 10ns, and the write time is 85ns, which can satisfy the speed requirements of most electronic applications.

Application Fields

The main application field of 7005S55J8 is the field of electronic products. It is widely used in television, radio, VCR, computer and other electronic products control. It provides the necessary programmable code for such products, which can make the products achieve certain functions and automation control. Due to the wide range of application fields, the 7005S55J8 can be used for the industry and the military. The military can use the programmable code to control security different equipment, and various industries can also use it to facilitate their production.

Working Principle

The 7005S55J8 is a ROM. The working principle is to first use the external control signal and address bus to read the data stored in the ROM. The ROM stores the program code and the corresponding information, so the information can be read out according to the address. The stored program code is the most important function of the 7005S55J8. It is an instruction operation code. After the program is read, it can be directly executed by the CPU. The read instructions are converted into instructions that can be understood by the processor, and then executed to achieve the expected purpose. After the program is executed, the CPU can read the output data from the memory, and then display or store it to achieve certain control effects.

Conclusion

The 7005S55J8 is a widely used semiconductor memory in the field of electronic products. It has a program counter of 15 bits, can support up to 256 I/O port accesses, has a read time of 10ns, and a write time of 85ns. It is widely used in the field of electronic products, such as television, radio, VCR and computers. The working principle is that the program code is read according to the external control signal and address bus, and then it is executed by CPU. After the program is executed, the corresponding output data is stored or displayed, which can achieve the expected control effect.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description