Overview
The CD4520BE is a CMOS Dual Binary Up-Counter produced by Texas Instruments, originally developed by Harris Semiconductor. This component consists of two identical, internally synchronous 4-stage counters, each made up of D-type flip-flops. The counters can be incremented on either the positive-going or negative-going transition of the clock signal, making them versatile for various counting applications. The CD4520BE is available in several package types, including PDIP, CDIP, SOIC, and TSSOP, catering to different design and implementation needs.
Key Specifications
| Specification | Value |
|---|---|
| Package Type | PDIP (N), CDIP (J), SOIC (D), TSSOP (PW) |
| Pins | 16 |
| Operating Temperature Range (°C) | -55 to 125 |
| Typical Clock Frequency at 10 V | 6 MHz |
| Input Current at 18 V and 25°C | 100 nA |
| Input Current at 18 V over full package-temperature range | 1 µA |
| Noise Margin at VDD = 5 V | 1 V |
| Noise Margin at VDD = 10 V | 2 V |
| Noise Margin at VDD = 15 V | 2.5 V |
Key Features
- Medium-speed operation with a typical clock frequency of 6 MHz at 10 V.
- Positive- or negative-edge triggering for flexibility in design.
- Synchronous internal carry propagation for accurate counting.
- 100% tested for quiescent current at 20 V.
- Standardized, symmetrical output characteristics.
- Meets all requirements of JEDEC Tentative Standard No. 13B for B Series CMOS Devices.
Applications
- Multistage synchronous counting.
- Multistage ripple counting.
- Frequency dividers.
Q & A
- What is the CD4520BE?
The CD4520BE is a CMOS Dual Binary Up-Counter, consisting of two identical, internally synchronous 4-stage counters. - Who is the manufacturer of the CD4520BE?
The CD4520BE is produced by Texas Instruments, originally developed by Harris Semiconductor. - What are the available package types for the CD4520BE?
The CD4520BE is available in PDIP, CDIP, SOIC, and TSSOP packages. - What is the typical clock frequency of the CD4520BE at 10 V?
The typical clock frequency is 6 MHz at 10 V. - Can the CD4520BE be triggered on both positive and negative edges?
Yes, the CD4520BE can be triggered on either the positive-going or negative-going transition of the clock signal. - What is the operating temperature range of the CD4520BE?
The operating temperature range is -55°C to 125°C. - What are some common applications of the CD4520BE?
Common applications include multistage synchronous counting, multistage ripple counting, and frequency dividers. - How many stages does each counter in the CD4520BE have?
Each counter has 4 stages, made up of D-type flip-flops. - Is the CD4520BE compliant with any specific standards?
Yes, it meets all requirements of JEDEC Tentative Standard No. 13B for B Series CMOS Devices. - What is the maximum input current at 18 V over the full package-temperature range?
The maximum input current is 1 µA at 18 V over the full package-temperature range.
