Offer CD TI from Kynix Semiconductor Hong Kong Chips. Description: datasheet CD Datasheet. Package: DIP. Quantity: 71 PCS. Datasheet, EN (PDF, 23 KB). Any questions? Contact us now! CD / Quad 2- Channel Multiplexer / Demultiplexer. RoHS, Yes. Package, DIP Mounting. BCD to 7-segment latch/decoder/driver. Rev. 7 — 1 April Product data sheet. Table 1. Ordering information. All types operate from °C to +85 °C.

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Go to the shop. The pin-out for the is shown below, and the datasheet is available at here. For normal operation, Latch Enable LE is held high, but when it is grounded, the takes the 4 line input and updates its internal registers.

CD4551 Datasheet and CD4551 manual

The ATmega has This is just for information. Leave a reply Click here to cancel the reply Your email address will not be published. In this example I will be using 2 x and 2 x 7 segment module. Your shopping bag is empty. We are factory specialized in making LED 7-segment display, dot-matrix display, light bar display and abnormity digital display. Next article Severed hand in ce4551 jar Halloween display.


We will use a DIP switch to turn various segments on and off. This calculator will help you figure out the resistor size http: Once you do this the number will be updated on the 2 LED modules. Already have an account? This connection is available on pins 3 and 8.

Your email address will not be published. Im trying to drive a single 7 segment display but i dont know how.

Each IC cf4551 a binary number as an input, then outputs the necessary lines to display that number on the 7 segment display. Now we will build a very simple circuit to drive a single digit.

What you need to do is select the appriate size resistor which will ensure you still have decent current goiing through the LED without burning it out. The photo below shows the finished circuit.

This provides a little over 5ma for each segment. In this tutorial we dstasheet show you how to setup an AVR Eclipse development environment See the example below.

CD Datasheet, PDF – Alldatasheet

Those are symbol for LED, to represent the 7-segment display, not normal diodes. If the voltage is too high or the resistor too low think of the wire being a resistorthe current going through the LED will exceed the maximum forward current cs4551 burn out the LED. Now controlling a 7 segment display like this is OK, but we can do much better.


The segments are then displayed on the basis of those internal registers. I used the LED resistor calculator on ohmslawcalculator.

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Since this is being powered by a 9V battery, I am using 1. The modules we will be using have a common cathode. This means that the negative side of all the LEDs are connected together. First we need to familiarize ourselves with the 7 segment module. Each segment is identified by a letter as can be seen below as well as the pinout and schematic for reference.

Driving a 7 segment display with a 4511 BCD to 7 Segment Driver

Every LED has a maximum forward current and forward voltage. Remember Me Lost your password? Using the 7 segments, dafasheet can make any decimal digit.