When EL is LOW, the state of the segment outputs (Oa to. Og) is determined by the data on DA to DD. When EL goes HIGH, the last data. HEFBP datasheet, HEFBP pdf, HEFBP data sheet, datasheet, data sheet, pdf, NXP Semiconductors, BCD to 7-segment latch/decoder/driver. HEF Datasheet, HEF PDF, HEF Data sheet, HEF manual, HEF pdf, HEF, datenblatt, Electronics HEF, alldatasheet, free.

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The pulses on the pin 15 are counted and the value is presented in BCD code on 4 pins: In fact, if we had an oscillator tuned to the frequency of 1 Hz, and we apply this signal to the input of the counter HEFwe achieved a stopwatch datashheet a countdown, depending on how the same is set by means of the presser These 4 data pins are fed binary values.

The chip takes in a binary value and displays the equivalent decimal value on the 7 segment display.

How to Build a 4511 BCD to 7 Segment Decoder Circuit

Then make the connections between them directly with clips from insulated copper wire or by means of passive components. The 4 data pins are D, B, C, and Hef45111. The is a pin chip.

The combination of pushbuttons pressed and unpressed determines the decimal digits, according to the binary value. The counting may be increasing or decreasing by setting the pin Also arranging the display across the two sections that connect them is not, by interposing the resistor voltage drop, corresponding to pins of the IC following the pattern in the datasheet of the same, making sure to connect the output of the IC to the corresponding leg segment A of the display, and so for the other 6.


Being that hev4511 don’t wish to use this feature, we simply connect it permanently HIGH. Being that they are all connected to pull-down resistors, they are all initially LOW when unpressed.

We can show the digits 0 through 9. There are 4 data pins hold a binary value. Pin 4 is the Blanking pin.

Counter with 7-segment display

Obviously, the event to be counted may be anything that can be converted into electrical impulse. The equivalent decimal value of the binary value we feed into the data input pins will be shown.

The 4 input data pins, which control the digit which is shown on the 7-segment LED display, are D, C, B, and A which are pins 6, 2, 1, and 7, respectively. Finally connect at least one of the legs of the cathode to datazheet negative line of the power supply.

A BCD to 7 segment decoder circuit is a circuit that intakes a binary value and displays the equivalent decimal value on the 7 segment display.

If we input a binary value into the data pins, we get the corresponding decimal digit equivalent shown out on the 7 segment display. Using binary coded decimal BCDwe can display any numerical digit on the 7 segment display from 0 to 9- using only 4 pins. When unpressed, the pin will be HIGH. Finally connect the outputs positive and negative power supply to the respective lines of the breadboard, then power up. This pin would blank all the outputs if connected LOW or to ground.


The circuit is powered by a direct voltage of 5 volts, but could be powered in a voltage range from 5 to 15 volts with the dataasheet to vary the values of the passive components. Any value above this amount cannot be shown on the 7 segment LED display. So the 7 segment LED display will show a 0 initially.

HEFBP Datasheet pdf – BCD to 7-segment latch/decoder/driver – NXP Semiconductors

When HIGH, it is store mode. It’s simply to test all the outputs to check if they turn on. These data pins are referred to in the datasheet as D, B, C, and A. In this circuit, we will build a BCD to 7 segment display decoder circuit using the chip.

Connecting a pin to ground or 0V puts the pin in a LOW state or value.

Depending on the combination of datasheey being pressed determines the decimal digit that will be shown on the 7 segment LED display; this is summarized in the table above. When pressed down, it would be LOW and turn on all the outputs.

With the binary value input, the equivalent decimal value of that binary number is displayed on the 7 segment display.

Lastly, the 8 output pins are labeled a, b, c, d, e, f g, which are pins 12, 12, 11, 10, 9, 15, and Subject of this experiment is the realization of a complete digital counter to a figure.

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