Overview
The CD4518BE, manufactured by Texas Instruments, is a dual BCD (Binary-Coded Decimal) up-counter integrated circuit. It is part of the 4000 series CMOS logic family and is designed for applications requiring decimal counting. The CD4518BE is housed in a DIP-16 package, making it suitable for breadboard prototyping and through-hole PCB assembly. This component is widely used in digital systems for counting and timing functions, offering reliable performance in consumer electronics, industrial automation, and other digital applications.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 3 to 18 | V | Wide operating range |
| Count Direction | Up | - | BCD counting |
| Number of Bits | 4 | - | Per counter |
| Number of Counters | 2 | - | Dual counter |
| Clock Trigger | Positive Edge | - | Synchronous operation |
| Propagation Delay | 650 | ns | Typical value |
| Operating Temperature | -40 to 85 | °C | Industrial range |
| Package | DIP-16 | - | Through-hole |
Key Features
- Dual BCD up-counter functionality for versatile counting applications.
- Wide supply voltage range (3V to 18V) ensures compatibility with various systems.
- Positive edge-triggered clock input for synchronous counting.
- Compact DIP-16 package for easy integration into through-hole PCBs.
- Low power consumption typical of CMOS technology.
Applications
The CD4518BE is commonly used in digital systems for counting and timing applications. It is ideal for use in frequency counters, digital clocks, and other devices requiring decimal counting. Its robust design and wide operating voltage range make it suitable for industrial automation, consumer electronics, and educational projects.
Q & A
1. What is the maximum supply voltage for the CD4518BE?
The maximum supply voltage is 18V.
2. How many counters are included in the CD4518BE?
It contains two independent BCD counters.
3. What type of clock trigger does the CD4518BE use?
It uses a positive edge-triggered clock input.
4. What is the typical propagation delay of the CD4518BE?
The typical propagation delay is 650 ns.
5. What is the operating temperature range of the CD4518BE?
It operates from -40°C to 85°C.
6. What package does the CD4518BE come in?
It is available in a DIP-16 package.
7. Can the CD4518BE be used in industrial applications?
Yes, its wide operating temperature range makes it suitable for industrial use.
8. Is the CD4518BE compatible with CMOS logic levels?
Yes, it is part of the CMOS 4000 series.
9. What is the counting direction of the CD4518BE?
It is an up-counter, counting from 0 to 9 in BCD format.
10. Can the CD4518BE be used in digital clocks?
Yes, it is commonly used in digital clocks for counting and timing functions.
