Overview
The CD4020BEX is a 14-bit binary counter/divider integrated circuit (IC) manufactured by Harris Corporation. This IC is part of the CD4000 series and is widely used in digital circuits for counting and timing applications. It operates on a wide range of voltages and is available in various package types, making it versatile for different design needs.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 14-bit |
| Counting Range | 0 to 16383 (decimal) |
| Operating Voltage | 3V to 18V |
| Nominal Voltage | 5V, 10V, 15V |
| Maximum Clock Frequency | 3.5MHz at 5V |
| Reset Propagation Delay | 140ns at 5V |
| Package Types | 16-pin PDIP, CDIP, SOIC, TSSOP |
| Operating Temperature | -55°C to 125°C |
Key Features
- 14-bit binary counter/divider
- Wide operating voltage range (3V to 18V)
- Maximum clock frequency of 3.5MHz at 5V
- Reset propagation delay of 140ns at 5V
- Available in multiple package types including PDIP, CDIP, SOIC, and TSSOP
- Internal Q2 and Q3 pins not user-accessible to maintain package size
Applications
- Creating long timing periods
- Astable frequency divider or counter circuits
- Timing-related applications
- Projects where microcontrollers should be avoided
- Frequency counters and other digital timing circuits
Q & A
- What is the CD4020BEX IC used for? The CD4020BEX is used as a 14-bit binary counter/divider in digital circuits.
- What is the operating voltage range of the CD4020BEX? The operating voltage range is from 3V to 18V.
- What is the maximum clock frequency of the CD4020BEX at 5V? The maximum clock frequency is 3.5MHz at 5V.
- What is the reset propagation delay of the CD4020BEX at 5V? The reset propagation delay is 140ns at 5V.
- In what package types is the CD4020BEX available? It is available in 16-pin PDIP, CDIP, SOIC, and TSSOP packages.
- Why are Q2 and Q3 pins not accessible in the CD4020BEX? Q2 and Q3 pins are not user-accessible to maintain a smaller package size.
- What are some common applications of the CD4020BEX? Common applications include creating long timing periods, astable frequency dividers, timing-related applications, and projects where microcontrollers are not desired.
- Can the CD4020BEX be cascaded for higher counting ranges? Yes, multiple CD4020BEX ICs can be cascaded for higher decimal counting ranges.
- What is the counting range of the CD4020BEX? The counting range is from 0 to 16383 in decimal.
- How do you reset the CD4020BEX counter? The counter can be reset by pulling the reset pin high.
