Overview
The CD4520BME4 is a CMOS Dual Binary Up-Counter produced by Texas Instruments. This component consists of two identical, internally synchronous 4-stage counters, each made up of D-type flip-flops. The counters are designed to be highly versatile, allowing for either positive or negative edge triggering and featuring interchangeable CLOCK and ENABLE lines. This makes the CD4520BME4 suitable for a variety of counting and timing applications in digital circuits.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 16-lead Small Outline IC (SOIC) |
| Operating Temperature Range | -55°C to 125°C |
| Clock Frequency | 6 MHz typical at 10 V |
| Edge Triggering | Positive or negative edge triggering |
| Internal Carry Propagation | Synchronous internal carry propagation |
| Quiescent Current Test | 100% tested for quiescent current at 20 V |
| Maximum Input Current | 1 µA at 18 V over full package-temperature range; 100 nA at 18 V and 25°C |
| Noise Margin | 1 V at VDD= 5 V, 2 V at VDD= 10 V, 2.5 V at VDD= 15 V |
| Package Quantity | 40 per tube |
Key Features
- Medium-speed operation with a typical clock frequency of 6 MHz at 10 V
- Positive or negative edge triggering for flexibility in circuit design
- Synchronous internal carry propagation for accurate counting
- 100% tested for quiescent current at 20 V to ensure low power consumption
- Low maximum input current of 1 µA at 18 V over the full package-temperature range
- 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 CD4520BME4?
The CD4520BME4 is a CMOS Dual Binary Up-Counter produced by Texas Instruments, consisting of two identical, internally synchronous 4-stage counters.
- What are the package options for the CD4520B?
The CD4520B is available in various packages including 16-lead hermetic dual-in-line ceramic, 16-lead dual-in-line plastic, 16-lead small-outline, and 16-lead thin shrink small-outline packages.
- What is the operating temperature range of the CD4520BME4?
The operating temperature range is -55°C to 125°C.
- What is the typical clock frequency of the CD4520BME4?
The typical clock frequency is 6 MHz at 10 V.
- Can the CD4520BME4 be triggered on either positive or negative edges?
- How is the internal carry propagation in the CD4520BME4?
The internal carry propagation is synchronous.
- What is the maximum input current of the CD4520BME4?
The maximum input current is 1 µA at 18 V over the full package-temperature range; 100 nA at 18 V and 25°C.
- What are some common applications of the CD4520BME4?
- Does the CD4520BME4 meet any specific industry standards?
- What is the noise margin of the CD4520BME4?
DD= 5 V, 2 V at VDD= 10 V, and 2.5 V at VDD= 15 V).
