CD4520 belongs to 4000 Series CMOS Logic Family of Integrated Circuits (IC’s) constructed with N- and P-channel enhancement mode transistors. CD4520 has Dual Binary Up Counter
CD4520 has a supply voltage range of 5V to 20V, which is much higher than any contemporary logic family. It has buffered output which improves transfer characteristics by providing very high gain. All inputs are protected against static discharge with diodes to VDD and VSS.
CD4520 Features
- High Voltage Types (20V Rating)
- CD4518BMS Dual BCD Up Counter
- CD4520BMS Dual Binary Up Counter
- Medium Speed Operation: 6MHz Typical Clock Frequency at 10V
- Positive or Negative Edge Triggering
- Synchronous Internal Carry Propagation
- Standard Symmetrical Output Characteristics
- 100% Tested for Maximum Quiescent Current at 20V
- 5V, 10V, and 15V Parametric Ratings
- Maximum Input Current of 1μA at 18V Over Full Package Temperature Range; 100nA at 18V and +25oC
- Noise Margin (Over Full Package Temperature Range):
- 1V at VDD = 5V
- 2V at VDD = 10V
- 2.5V at VDD = 15V
CD4520 Specifications
Absolute Maximum Ratings
- DC Supply Voltage Range, (VDD): -0.5V to +20V (Voltage Referenced to VSS Terminals)
- Input Voltage Range, All Inputs: -0.5V to VDD +0.5V
- DC Input Current, Any One Input: ±10mA
- Operating Temperature Range: -55oC to +125oC Package Types D, F, K, H
- Storage Temperature Range (TSTG): -65oC to +150oC
- Lead Temperature (During Soldering): +265oC
- At Distance 1/16 ± 1/32 Inch (1.59mm ± 0.79mm) from case for 10s Maximum
CD4520 Pinout Diagram
CD4520 Pin Description
| Pin No | Pin Name | Description |
| 1 | CLK A | Clock Pin A |
| 2 | ENABLE A | Enable Pin A |
| 3 | Q1A | Counter Output 1A |
| 4 | Q2A | Counter Output 2A |
| 5 | Q3A | Counter Output 3A |
| 6 | Q4A | Counter Output 4A |
| 7 | RESET A | Reset Pin A |
| 8 | VSS | Supply Voltage |
| 9 | CLK B | Clock Pin B |
| 10 | ENABLE B | Enable Pin B |
| 11 | Q1B | Counter Output 1B |
| 12 | Q2B | Counter Output 2B |
| 13 | Q3B | Counter Output 3B |
| 14 | Q4B | Counter Output 4B |
| 15 | RESET B | Reset Pin B |
| 16 | VDD | Drain Voltage |
CD4520 Circuit
Applications
- Multistage Synchronous Counting
- Multistage Ripple Counting
- Frequency Dividers
CD4520 Alternative Equivalent
CD4518
Download CD4520 Dual Binary Up Counter Datasheet from the link given below.
