Series:	--
Packaging:	Tube
Part Status:	Active
Memory Type:	Volatile
Memory Format:	SRAM
Technology:	SRAM - Asynchronous
Memory Size:	256Kb (32K x 8)
Write Cycle Time - Word, Page:	35ns
Access Time:	35ns
Memory Interface:	Parallel
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	-55°C ~ 125°C (TA)
Mounting Type:	Through Hole
Package / Case:	28-CDIP (0.600", 15.24mm)
Supplier Device Package:	28-CerDip

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Memory 71256L35DB Application Field and Working Principle

1 Introduction

71256L35DB is a type of memory integrated circuit (IC) which is used in various application fields. This IC is developed by Renesas Technology Corporation. It is a four-channel digital-to-analog converter (DAC), which is designed for use in analog-to-digital and digital-to-analog applications such as audio and video systems. In this paper, the application fields and working principle of the 71256L35DB are going to be discussed.

2 Application Fields

The 71256L35DB can be used in a variety of application fields. One example is in digital TV systems. It can be used to create the system’s color video signal, which is a combination of RGB (red, green, and blue) signals. With the help of the 71256L35DB, the digital TV system can convert digital signals into analog signals and then show them on the TV screen. Another application field is in Hi-Fi audio systems. The 71256L35DB can be used in multiple-channel audio systems to process the audio signals and obtain a hi-fi effect. It can also be used in video games. The 71256L35DB can be used in video game consoles to convert digital signals into analog signals for displaying the game’s graphics on a screen. It can also be used in other audio and video applications such as portable audio systems, home theater systems, and car audio systems.

3 Working Principle

The 71256L35DB is a four-channel digital-to-analog converter (DAC). It uses a conversion process known as pulse-width modulation (PWM). In PWM, a digital input signal is used to control the pulse widths of square wave pulses. The resulting pulses are then used to generate analog signals. The analog output of the 71256L35DB is a combination of sine waves that are in-phase quadrature (IQ). The 71256L35DB also contains multiple low-pass filters that are used to attenuate higher frequency components and reduce any distortion caused by the PWM process.

4 Conclusion

The 71256L35DB is an integrated circuit (IC) which can be used in various application fields such as digital TVs, hi-fi audio systems, and video games. It is a four-channel digital-to-analog converter (DAC) which uses pulse-width modulation (PWM) for signal conversion. The 71256L35DB also contains multiple low-pass filters to attenuate higher frequency components and reduce distortion.References: 1. Renesas Technology Corporation. "Renesas 71256L35DB — 4-Channel high accuracy digital-to-analog converter." (2020). https://products.renesas.com/en/semiconductor/automotive/71256l35db.html 2. “Pulse-width Modulation.” Wikipedia, Wikimedia Foundation, 24 Aug. 2020, en.wikipedia.org/wiki/Pulse-width_modulation.

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