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HCF4520
HCF4520 is a dual BCD up counter IC with 16 pin DIP package.
HCF4520
HCF4520 is a dual BCD up counter IC with 16 pin DIP package.
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HCF4520 DataSheet
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Details
The HCF4520 is a dual binary up-counter integrated circuit (IC) that is commonly used in digital electronics applications. It has a total of two separate 4-bit binary counters that can count up or down depending on the input signal. This IC is typically used in applications where precise counting or timing is required, such as in clocks, frequency dividers, and digital circuits.The HCF4520 has a wide operating voltage range of 3V to 20V, making it compatible with a variety of digital systems. It also features a high-speed operation with a maximum clock frequency of 8MHz, allowing for fast and accurate counting.The IC has two clock inputs, one for each counter, which allows for independent counting operations. It also has enable and reset inputs that can be used to control the counting sequence and reset the count to zero if needed.
Key Features
- Dual 4-bit synchronous binary counters
- Operates from a single supply voltage of 4.5V to 20V
- Can be cascaded for higher count lengths
- Features synchronous Reset and Enable inputs
- Low power consumption
- Available in SO-16 and PDIP-16 packages
Application
- Frequency counters
- Frequency dividers
- Timer circuits
- Frequency multiplication/division circuits
- Signal processing circuits
- Waveform generators
- Communication systems
- Industrial control systems
- Instrumentation
- Automotive electronics
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Manufacturer | STMicroelectronics | Product Category ! | Counters, Dividers |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is HCF4520?
The HCF4520 is a dual binary up-counter IC (Integrated Circuit) designed by STMicroelectronics. It is commonly used for counting applications in electronic circuits, frequency division, and timing functions.
How Does HCF4520 Work?
The HCF4520 operates as a dual 4-bit binary up-counter, meaning it counts up in binary sequence based on the input clock pulses. Each counter has a carry output that can be connected to the next counter for cascading multiple counters. The IC can be reset to its initial state using the reset input.
How Many Pins does HCF4520 have and What are the Functions of the Pinout Configuration?
The HCF4520 is housed in a 16-pin DIP (Dual Inline Package). The pinout configuration includes:
- CP1, CP2: Clock input for counter 1 and counter 2, respectively.
- MR1, MR2: Master reset inputs for counter 1 and counter 2, respectively.
- Q0 to Q3 (Q0-Q3): Outputs for counter 1 and counter 2, representing the binary count.
- TC1, TC2: Terminal count outputs for counter 1 and counter 2, respectively.
- CD1, CD2: Carry outputs for counter 1 and counter 2, respectively.
What are the Pros and Cons of HCF4520?
Pros:
- Dual Counter: Contains two independent 4-bit up-counters in a single IC.
- Cascadable: Allows for cascading multiple counters to increase the counting range.
- Binary Count: Provides a binary count sequence for digital applications.
- Reset Function: Includes a master reset input for resetting the counters.
- Compact Package: Housed in a standard 16-pin DIP package for easy integration.
Cons:
- Limited Count Range: Each counter is 4 bits, limiting the maximum count value per counter.
- Complex Timing: Requires proper clocking and understanding of binary counting for accurate operation.
- External Connections: May need additional logic gates for specific counting sequences or functions.
Are There Any Equivalents/Alternatives to HCF4520 for Recommendation?
- An equivalent part to the HCF4520 is the CD4520 from Texas Instruments.
- Alternatives to the HCF4520 include the 74HC4520 from NXP Semiconductors and the MC14520 from ON Semiconductor.
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