CY7C109B-20VC

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Memory Type:	Volatile
Memory Format:	SRAM
Technology:	SRAM - Asynchronous
Memory Size:	1Mb (128K x 8)
Write Cycle Time - Word, Page:	20ns
Access Time:	20ns
Memory Interface:	Parallel
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	0°C ~ 70°C (TA)
Mounting Type:	Surface Mount
Package / Case:	32-BSOJ (0.400", 10.16mm Width)
Supplier Device Package:	32-SOJ
Base Part Number:	CY7C109

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MemoryCY7C109B-20VC is one of Cypress Semiconductor\'s most popular non-volatile memory products. The CY7C109B-20VC is an asynchronous static RAM (SRAM) organized as 1024 words of 8 bits each. It is a 20-pin DIP package, utilizing an asynchronous bus access protocol and standard 27xxx pinout with an enable line.The CY7C109B-20VC is designed for applications including data logging, data storage, high speed microprocessor systems and memory for A/D converters, D/A converters, and PWM controllers. It can provide fast and reliable access to large amounts of data to minimize the need for external memory.The CY7C109B-20VC is a low power consumption memory that can operate in temperatures from -40°C to +85°C. It uses a standard 27xxx pinout with an enable signal that is used to control access to the data.It is packaged in a standard 20-pin dual-in-line package (DIP). The CY7C109B-20VC is a 20V non-volatile static random access memory (SRAM).The CY7C109B-20VC working principle is based on the asynchronous static RAM (SRAM) organization, the device contains an array of 1024 words, each of 8 bits, and is organized as eight output ports of eight bits each. Each of these 8 bits has its own address, allowing for simple and fast addressing. All data is stored in on-chip RAM as opposed to off-chip memory which is slower.In addition, the CY7C109B-20VC also has an asynchronous access protocol. It uses two lines: address data (A0-A7) and read/write (R/W). A read operation is performed when the R/W line is set to low (0) while a write operation requires setting the R/W line to high (1). When the enable line is set to low (0), the device is activated and can access the RAM memory. Once the address is set, the data is written to or read from the RAM memory.The CY7C109B-20VC is a low power consumption chip that is ideal for battery-powered applications. It supports both wide (−4V to +20V) and narrow (−2.5V to +20V) voltage operation over the full temperature range. In addition, it is designed with a robust architecture that allows for flexibility and reliability in system design.In summary, CY7C109B-20VC is a static RAM chip of a standard 27xxx pinout and an asynchronous bus access protocol suitable for applications including data logging, data storage, high speed microprocessor systems and memory for A/D converters, D/A converters, and PWM controllers. It is a low power consumption memory that can operate in temperatures from -40°C to +85°C. The CY7C109B-20VC working principle is based on the asynchronous static RAM organization and uses two R/W and A0-A7 lines to access the RAM memory.

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