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Description
The CD4518BNS is a dual BCD (Binary-Coded Decimal) up-counter designed to operate over a wide range of supply voltages and is part of the CD4000 series of integrated circuits. It includes two separate counter circuits, each with a count-enable input, a carry-out output, and a reset input. The counters advance on the positive edge of the clock input, and each can independently count from 0 to 9 before resetting to 0 and generating a carry-out signal, which can be used to cascade multiple counters for higher count ranges.
This IC is typically used in digital applications where accurate counting is required, such as in digital clocks, frequency counters, and event counters. Key features include low power consumption, high noise immunity, and the ability to operate in both synchronous and asynchronous modes. The CD4518BNS is compatible with other TTL, CMOS, and NMOS logic families, making it versatile for various digital projects. It is commonly packaged in a standard DIP (dual in-line package), suitable for prototyping and easy integration on breadboards or PCBs.
This IC is typically used in digital applications where accurate counting is required, such as in digital clocks, frequency counters, and event counters. Key features include low power consumption, high noise immunity, and the ability to operate in both synchronous and asynchronous modes. The CD4518BNS is compatible with other TTL, CMOS, and NMOS logic families, making it versatile for various digital projects. It is commonly packaged in a standard DIP (dual in-line package), suitable for prototyping and easy integration on breadboards or PCBs.
Equivalent
The CD4518BNS is a dual BCD up-counter IC. Equivalent products include the 74HC4518 and the HEF4518B, which serve similar functions. These ICs are part of the 4000 series CMOS logic family and are commonly used in digital counters and dividers. Always check the datasheets for compatibility in terms of electrical characteristics and pin configuration before substituting.
Features
The CD4518BNS is a dual BCD (Binary-Coded Decimal) up-counter that is part of the CD4000 series of integrated circuits. Key features include:
1. Dual Counters: It contains two independent 4-bit BCD counters, which can be cascaded for multi-digit counting.
2. Clock Inputs: Each counter has a separate clock input to allow operation at different frequencies or phases.
3. Reset Functionality: It includes reset inputs for each counter, permitting asynchronous reset to zero.
4. Wide Supply Voltage Range: Operates over a voltage range of 3V to 15V, making it versatile for various applications.
5. High Noise Immunity: Displays strong resistance to noise, benefiting from CMOS technology.
6. Low Power Consumption: Designed for low power usage, which is characteristic of CMOS circuits.
7. Output Compatibility: Outputs are compatible with TTL and other CMOS logic levels.
8. Temperature Range: Functions over a wide temperature range, typically -55°C to +125°C, making it suitable for diverse environmental conditions.
This IC is commonly used for applications requiring counting, frequency division, or time delay generation.
1. Dual Counters: It contains two independent 4-bit BCD counters, which can be cascaded for multi-digit counting.
2. Clock Inputs: Each counter has a separate clock input to allow operation at different frequencies or phases.
3. Reset Functionality: It includes reset inputs for each counter, permitting asynchronous reset to zero.
4. Wide Supply Voltage Range: Operates over a voltage range of 3V to 15V, making it versatile for various applications.
5. High Noise Immunity: Displays strong resistance to noise, benefiting from CMOS technology.
6. Low Power Consumption: Designed for low power usage, which is characteristic of CMOS circuits.
7. Output Compatibility: Outputs are compatible with TTL and other CMOS logic levels.
8. Temperature Range: Functions over a wide temperature range, typically -55°C to +125°C, making it suitable for diverse environmental conditions.
This IC is commonly used for applications requiring counting, frequency division, or time delay generation.
Pinout
The CD4518BNS is a dual BCD up-counter integrated circuit. It features a total of 16 pins. Each counter within the IC is a 4-bit BCD counter, and the chip contains two of these counters, hence the term "dual."
Here is a brief overview of the pin functions:
1. VDD (Pin 16): Positive power supply.
2. VSS (Pin 8): Ground.
3. A Counter:
- Pins 1-4 (Q1A-Q4A): Output pins for the A counter, representing the 4-bit BCD output.
- Pin 5 (CP0A): Clock input for the A counter.
- Pin 6 (MR A): Master reset for the A counter, active high.
4. B Counter:
- Pins 10-13 (Q1B-Q4B): Output pins for the B counter, representing the 4-bit BCD output.
- Pin 9 (CP0B): Clock input for the B counter.
- Pin 7 (MR B): Master reset for the B counter, active high.
The counters increment on the positive edge of the clock input, and the master reset clears the counter to zero when activated.
Here is a brief overview of the pin functions:
1. VDD (Pin 16): Positive power supply.
2. VSS (Pin 8): Ground.
3. A Counter:
- Pins 1-4 (Q1A-Q4A): Output pins for the A counter, representing the 4-bit BCD output.
- Pin 5 (CP0A): Clock input for the A counter.
- Pin 6 (MR A): Master reset for the A counter, active high.
4. B Counter:
- Pins 10-13 (Q1B-Q4B): Output pins for the B counter, representing the 4-bit BCD output.
- Pin 9 (CP0B): Clock input for the B counter.
- Pin 7 (MR B): Master reset for the B counter, active high.
The counters increment on the positive edge of the clock input, and the master reset clears the counter to zero when activated.
Manufacturer
The CD4518BNS is manufactured by Texas Instruments (TI). Texas Instruments is a multinational technology company based in Dallas, Texas, known for designing and manufacturing semiconductors and various integrated circuits. They focus on developing analog chips and embedded processors, which are used in a wide range of electronics applications, including industrial, automotive, personal electronics, and communication devices. Texas Instruments is considered one of the largest semiconductor companies globally and is well-regarded for its innovations and contributions to the electronics industry.
Application
The CD4518BNS is a dual BCD (Binary-Coded Decimal) counter, commonly used in digital applications. Its application areas include:
1. Timing Circuits: Used in digital clocks and timers for counting seconds, minutes, or hours.
2. Frequency Division: Divides frequency in digital frequency dividers.
3. Sequential Logic: Functions in state machines and sequence generators.
4. Event Counting: Counts occurrences in digital event counters.
5. Digital Displays: Drives numerical displays in calculators and measuring instruments.
6. Data Acquisition Systems: Used in systems requiring counting and tallying of digital signals.
Its versatility in counting and frequency division makes it popular in various digital electronics applications.
1. Timing Circuits: Used in digital clocks and timers for counting seconds, minutes, or hours.
2. Frequency Division: Divides frequency in digital frequency dividers.
3. Sequential Logic: Functions in state machines and sequence generators.
4. Event Counting: Counts occurrences in digital event counters.
5. Digital Displays: Drives numerical displays in calculators and measuring instruments.
6. Data Acquisition Systems: Used in systems requiring counting and tallying of digital signals.
Its versatility in counting and frequency division makes it popular in various digital electronics applications.
Package
The CD4518BNS is a dual BCD up-counter IC. The package type for CD4518BNS is typically an SOIC-16 (Small Outline Integrated Circuit) package, which is a surface-mount package with 16 pins.
