CD4511 🔬
Various (Texas Instruments, NXP, STMicroelectronics, etc.)
Logic - Decoders/Drivers
Translates a 4-bit binary coded decimal (BCD) for a 7-segment display.
The CD4511 is a BCD-to-7-segment latch/decoder/driver designed to interface between a 4-bit BCD input and a 7-segment LED display. It includes a storage latch, decoder logic, and output drivers for common-cathode displays.
Supply Voltage:
3V - 18V
Package:
16-pin DIP
Max Frequency:
5.0 MHz
7-Segment Counter!
Let's use the previous circuit we built and add a 7-Segment Display to show the number in decimal!
To do this, we'll use the CD4511 IC, which takes a 4-bit binary input and controls the LED segments needed to display the corresponding digit.
Schematic
Once you're done, your breadboard circuit should look something like this:
Breadboard Circuit
Now, when you press the 'Add' switch, the 7-Segment Display will show the decimal number from 0 to 9.
Key Features
- BCD to 7-segment decoder/driver
- Drives common-cathode LED displays
- Built-in latch for data storage
- Lamp test function
- Blanking capability
- Wide supply voltage range (3-18V)
- Low power CMOS technology
Applications
- Digital voltmeters and panel meters
- Frequency counters and timers
- Point-of-sale terminals
- Digital clocks and watches
- Instrumentation displays
Notes
When LE is high, the outputs follow the BCD inputs. When LE is low, the last BCD value is latched and displayed. The lamp test input can be used to test all segments. Blanking input turns off all segments.