7140LA100J8

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Memory Type:	Volatile
Memory Format:	SRAM
Technology:	SRAM - Dual Port, Asynchronous
Memory Size:	8Kb (1K x 8)
Write Cycle Time - Word, Page:	100ns
Access Time:	100ns
Memory Interface:	Parallel
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	0°C ~ 70°C (TA)
Mounting Type:	Surface Mount
Package / Case:	52-LCC (J-Lead)
Supplier Device Package:	52-PLCC (19.13x19.13)
Base Part Number:	IDT7140

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Introduction

7140LA100J8 is a memory used in many digital equipment, such as computers, electrical appliances, network equipment, and so on. It is categorized as non-volatile memory, which means it can store data without any external power supply. This means that the content stored in its memory will be kept when the power is cut off. It is the preferred method of memory storage in various digital equipment.

Application Field

7140LA100J8 is typically used in Internet of Things (IoT) to store data in industrial automation, large-scale equipment, office automation, and other networked equipment. It is also used for data storage in radio frequency identification (RFID) tags, smart cards, barcode systems, and other related applications. Due to its low cost and high memory capacity, it is also used in embedded systems, personal computers, and networking systems.

Working Principle

7140LA100J8 uses a static random access memory (SRAM) core and a non-volatile storage cell. The non-volatile storage cell stores the content of the memory while the SRAM core stores the address. The content of the memory is transferred to the SRAM core and is held by an integrated circuit (IC) latch. When power is cut, the non-volatile cell is powered by its own internal battery, thus preserving the content of the memory. In addition, the chip has a power-off detection circuit that detects the presence of an external power source. When an external power source is absent, the chip immediately switches to the battery-powered non-volatile cell.

Advantages

7140LA100J8 has several advantages over other forms of memory. First, it has a wide operating temperature range, from -55℃ to 125℃, making it suitable for use in environments with extreme temperatures. Second, it has higher memory capacity and lower cost compared to static random access memories (SRAMs), making it an ideal choice for embedded applications. Third, it has good stability, meaning that it can retain data for a long period of time, even after periods of power failure. Finally, with its low power requirements, it is reliable and efficient, making it a great choice for a variety of digital devices.

Disadvantages

7140LA100J8 has some disadvantages as well. First, it is relatively slow compared to other memory types. Second, it has a limited capacity, usually going up to a few megabytes. Third, depending on the design, it can be vulnerable to various forms of interference, such as cosmic rays, temperature changes, and electromagnetic noise. Finally, its power consumption is higher compared to other memory types.

Conclusion

7140LA100J8 is a type of memory used in many digital devices. It is categorized as non-volatile memory, which means it stores data without any external power supply. It is used in many applications, such as in embedded systems, personal computers, and IoT applications. 7140LA100J8 has several advantages, such as a wide operating temperature range, relatively low cost, and good stability. However, it has some disadvantages, such as its slow speed, limited capacity, and susceptibility to interference. Overall, it is a reliable and efficient type of memory that is suitable for a variety of applications.

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