CD74HC4020EG4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The CD74HC4020EG4 is a high-speed CMOS 14-stage binary ripple counter from Texas Instruments in a through-hole 16-pin DIP package. It counts up to 2^14 (16384) states with outputs available from 12 counter stages, operates from 2V to 6V supply, and features an active-high master reset. Suitable for frequency division and timer applications in industrial and consumer electronics.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD74HC4020EG4 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 14-stage binary ripple counter with 12 accessible output stages for frequency division
- High-speed HC CMOS family with maximum 20 MHz clock frequency at 5V
- Wide operating supply of 2V to 6V for multi-voltage system compatibility
- Active-high master reset pin for synchronous counter initialization
- 16-pin through-hole DIP package suitable for prototyping and through-hole assemblies
- Low quiescent current CMOS operation for battery-friendly timer applications
Applications
The CD74HC4020EG4 is used in frequency divider circuits, long-period timer stages, and clock prescaler applications in embedded electronics, laboratory instruments, and industrial control panels. It is also commonly found in through-hole prototype boards and educational electronics kits where DIP packaging enables easy breadboard insertion for counter chain and frequency division circuit experiments.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD74HC4020EG4:
Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 14-Bit, Up Direction, CMOS, PDIP16
Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 14-Bit, Up Direction, CMOS, PDIP16
Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 7-Bit, Up Direction, CMOS, PDIP14
Binary Counter, HC/UH Series, Asynchronous, Negative Edge Triggered, 12-Bit, Up Direction, CMOS, PDIP16
Frequently Asked Questions
What is the maximum clock frequency of the CD74HC4020EG4?
The CD74HC4020EG4 operates at a maximum clock frequency of approximately 20 MHz with a 5V supply at room temperature within the HC CMOS family. At lower supply voltages such as 3V, the maximum frequency is reduced — consult the datasheet's AC characteristics table for exact limits at each supply voltage and temperature combination.
How many stages does the CD74HC4020EG4 have and which are accessible?
The CD74HC4020EG4 is a 14-stage binary ripple counter, providing division ratios up to 2^14 (16384). Of the 14 stages, 12 have externally accessible output pins, delivering divided clock outputs from divide-by-4 (Q2) through divide-by-16384 (Q14). Stages Q1 and Q11 are internal only and not brought to external pins.
What is the package of the CD74HC4020EG4?
The CD74HC4020EG4 uses a 16-pin through-hole DIP (Dual In-line Package) with EG4 suffix indicating a tube-packaged, lead-free part. The through-hole DIP format is well suited for hand assembly, prototyping on breadboards, and legacy designs requiring socketed through-hole logic components.
What supply voltage range does the CD74HC4020EG4 support?
The CD74HC4020EG4 operates from a supply voltage of 2V to 6V, covering 3.3V, 5V, and other standard digital supply rails. This wide range is characteristic of the HC CMOS logic family and makes the device compatible with both modern microcontroller-based 3.3V designs and legacy 5V TTL-interfaced systems.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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