The CDBC BCD-to-seven segment latch/decoder/ driver is constructed with complementary MOS (CMOS) enhancement mode devices and NPN bipolar. The datasheet specifies that this IC is a BCD to 7-segment latch/decoder/ driver with four address inputs (DA to DD), an active LOW latch. The datasheet collection for the ICs of the CMOS series. Watch now! CMOS – BCD to 7-Segment Latch / Decoder / Driver. Choose by IC.

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The equivalent decimal value of the binary value we feed into the data input pins will be shown. Next article Severed hand in a jar Halloween display. So if we want to show a 4, we pressed down on pushbutton C while having all the other pushbuttons unpressed.

CMOS – CMOS – BCD to 7-Segment Latch / Decoder / Driver

So, for example, if we want to show the decimal number 5, we give a value of to the DCBA data pins. Click here to download operating information for this part.

There are 4 data pins hold a binary value. Once you do this the number will be updated on the 2 LED modules.

These charges are usually billed to you directly dataeheet UPS. With the binary value input, the equivalent decimal value of that binary number is displayed on the 7 segment display. When HIGH, the lamp test is activated. These are the pins we attach to each of the corresponding pins on the 7 segment LED display.


See the example below. When unpressed, the pin will be HIGH.

The is a pin chip. Further Information For information about all of the delivery options we offer click here. For a list of postcodes that will be charged the remote location rate click here.

These pins are all connected to pull-down resistors. The really makes it much simpler datasjeet work with single 7 segment LED displays. Already have an account? In this circuit, we will build a BCD to 7 segment display decoder circuit using the chip.

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

Depending on the combination of pushbuttons being pressed determines the decimal digit that will be shown on the 7 segment LED display; this is summarized in the table above.

Every Dwtasheet has a maximum forward current and forward voltage. The modules we will be using have a common cathode. We cannot show any other digits on the 7 segment display. International orders may be charged import duty dependant on local import laws and duty rates.

National Semiconductor

This pin would blank all the outputs if connected LOW or to ground. You must have JavaScript enabled in your browser to utilize the functionality of this website.

So, for example, if we input into the data pins, we get the number 0. We are factory specialized in making LED 7-segment display, dot-matrix display, light bar display and abnormity digital display. In this circuit, we will start the BCD to 7 segment display decoder with the most basic circuit. 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 and burn out the LED.


If the pushbuttons are pressed, they go to a HIGH state. This calculator will help you figure out the resistor size http: Supplied in a 16 pin DIL package. The chip takes in a binary value and displays the equivalent decimal value on the 7 segment display.

So we can see which combinations of pushbuttons turned on displays which decimal values. Your shopping bag is empty. Max quiescent current consumption: You can see the delivery time and cost at the shipping stage, or by using the shipping estimator from within the shipping basket. Being that we don’t want the blanking feature activated, we simply connect it permanently to HIGH.

The following table explains what the pins do: