CD4510 🔬
Texas Instruments, Harris Semiconductor, Various
Logic - Counters
Counts up or down from 0 to 9, and can be set to start counting from any number you choose.
The CD4510B is a CMOS presettable BCD up/down counter consisting of four synchronously clocked D-type flip-flops. It can count up or down based on the U/D input, be preset to any BCD value via the jam inputs, and cleared via the reset input. The device supports both synchronous and ripple cascading for multi-digit applications.
Supply Voltage:
3V - 18V
Package:
16-pin DIP
Max Frequency:
8.0 MHz
Binary Counter!
Let's use an IC called CD4510 to build a circuit that counts in binary! It will receive an input from 2 buttons and output the current count.
- 'Add' increases the count by 1.
- 'Reset' clears the count back to 0.
The output of the current count will be displayed on 4 LEDs as a binary number. An LED turned ON represents 1, while an LED turned OFF represents 0.
Schematic
Once you're done, your breadboard circuit should look something like this:
Breadboard Circuit
Now, click the 'Add' button and see how the count is displayed in binary!
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
- Presettable BCD up/down counter
- Synchronous operation with positive-edge clock
- Preset capability with jam inputs
- Master reset function
- Carry input and output for cascading
- Medium-speed operation (8 MHz typ at 10V)
- Wide supply voltage range (3-18V)
- Low power CMOS technology
- 100% tested for quiescent current at 20V
Applications
- Up/Down difference counting
- Multistage synchronous counting
- Multistage ripple counting
- Synchronous frequency dividers
- Digital timers and stopwatches
- Event counters
- Programmable dividers
Notes
The CD4510B will count out of non-BCD states in maximum of 2 clock pulses (up mode) or 4 clock pulses (down mode). For cascading, connect CARRY-OUT to CARRY-IN of next stage. When UP/DOWN changes during terminal count, CARRY-OUT must be gated with clock.