Key facts
- Brand
- STMicroelectronics
- Model
- HCF4020B
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-10
Start here

STMicroelectronics HCF4020B Ripple-Carry Binary Counter Datasheet
The HCF4020B is a monolithic integrated circuit fabricated in Metal Oxide Semiconductor technology, available in DIP and SOP packages. It functions as a ripple carry binary counter where all counter stages are master-slave flip-flops. The device features buffered inputs and outputs, a common reset line, and standardized symmetrical outputs. It supports medium-speed operation with a typical frequency of 16MHz at 10V supply voltage and offers fully static operation.
Read onlineSTMicroelectronics HCF4020B specifications
| Supply Voltage (Vop) | 3 to 20 V |
|---|---|
| Operating Temperature | -55 to +125 °C |
| Maximum Clock Frequency | 16 MHz (Typ.) at 10V |
| Quiescent Current | 150 µA (Typ.) at 5V |
| Input Leakage Current | 100 nA (Max.) |
| Package Types | DIP and SOP |
Source: STMicroelectronics HCF4020B Ripple-Carry Binary Counter Datasheet
All STMicroelectronics HCF4020B documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the typical maximum clock frequency at 10V?
The typical maximum clock frequency is 16MHz at a supply voltage of 10V.
From: STMicroelectronics HCF4020B Ripple-Carry Binary Counter Datasheet
How does the counter reset?
A high level on the RESET line resets the counter to its all zeros stage.
From: STMicroelectronics HCF4020B Ripple-Carry Binary Counter Datasheet
