This device is an 8-bit serial shift register which shifts data in the direction of QA toward QH when clocked. Parallel-in access is made available by eight. Texas Instruments 74LS Counter Shift Registers are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for Texas Instruments . 74LS 8-bit Parallel In/serial Output Shift Registers. This device an 8-bit serial shift register which shifts data in the direction of QA toward QH when clocked.

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This site uses cookies. July 31, at 5: Another pin that is useful especially when you want to cascade a few datashert registers together, which is Serial Data Input DS. December 19, at 9: November 19, at 2: December 1, at 8: December 30, at 4: May 11, at 7: Schematic on how to cascade the shift register will be shown later on.

74LS datasheet, Pinout ,application circuits 8-Bit Parallel In/Serial Output Shift Registers

You can can also change it into pull down resistor network connection. From my understanding, you have the buttons well connected to the shift register and the output of shift register is also connected to the Arduino.


Dear Object means the instrument which is a digital keyboard for music playing and its display lcd is not available and its very much important to me, its my first keyboard therefore I want to get the display data or display screen of the instrument on arduino lcd. January 11, at 9: Last but not least, a video demo showing the operation of 74HC Shift Register.

74LS165 PDF Datasheet浏览和下载

Thanks for your kind reply… See I have followed you and understood your line 39 to 51 is printable characters. Of course, you need to do some manipulation on the results that you obtained from each shiftIn.

You can cascade a lot of shift register to get tons of inputs. James July 31, at 5: January 8, at 8: The input voltage acceptable range is between GND to Vcc, where maximum allowable voltage for Vcc is 7V according to the datasheet.

Notify me of new posts via email. Change the code to display it using your serial monitor.

Leave a Reply Cancel reply Enter your comment here June 11, at Notify me of new comments via email. You are commenting using your Daasheet account. Why have you left out the decoupling capacitors?


Maria November 19, at 2: Email required Address never made public.

74LS (FAIRCHILD) PDF技术资料下载 74LS 供应信息 IC Datasheet 数据表 (1/6 页)

You need a 0. December 19, at If you are using other display, you may need to change to code for the display. Notice that I am using a pull up resistor of 10k ohm on all the inputs.

Blog Statshits. However, it is recommended to operate the chip at 5V. Hi Maria, sorry for the late reply. December 17, at Thanks for the kind words.

8-Bit Parallel In/Serial Output Shift Registers

Create a free website or blog at WordPress. Build your own Arduino Uno. In order to ease the process of reading data from shift register, I am using an Arduino built in function which is ShiftIn. A summary of the shift register operation is shown is the timing diagram below.