Overview
The MC74HC4020ADG is a 14-stage binary ripple counter produced by onsemi. This device is part of the high-performance silicon-gate CMOS family and is identical in pinout to the standard CMOS MC14020B. It features 14 master-slave flip-flops, with 12 stages brought out to pins, making it suitable for various counting and timing applications. The counter operates on a negative-edge triggering clock input and has an active-high reset capability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| DC Supply Voltage (VCC) | –0.5 to +7.0 | V |
| DC Input Voltage (Vin) | –0.5 to VCC + 0.5 | V |
| DC Output Voltage (Vout) | –0.5 to VCC + 0.5 | V |
| Maximum Clock Frequency (50% Duty Cycle) | 10 to 50 MHz (depending on VCC) | MHz |
| Maximum Propagation Delay, Clock to Q1 | 25 to 96 ns (depending on VCC) | ns |
| Minimum Pulse Width, Clock | 13 to 70 ns (depending on VCC) | ns |
| Operating Voltage Range | 2.0 to 6.0 V | V |
| Maximum Input Leakage Current | ±1.0 μA | μA |
| Maximum Quiescent Supply Current | 4 to 160 μA (depending on VCC) | μA |
| Power Dissipation in Still Air | 450 to 500 mW (depending on package) | mW |
| Storage Temperature Range | –65 to +150 °C | °C |
Key Features
- Output Drive Capability: 10 LSTTL Loads
- Outputs Directly Interface to CMOS, NMOS, and TTL
- Operating Voltage Range: 2.0 to 6.0 V
- Low Input Current: 1 μA
- High Noise Immunity Characteristic of CMOS Devices
- In Compliance With JEDEC Standard No. 7A Requirements
- Chip Complexity: 398 FETs or 99.5 Equivalent Gates
- NLV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC-Q100 Qualified and PPAP Capable
- Pb-Free, Halogen Free/BFR Free and RoHS Compliant
Applications
The MC74HC4020ADG is versatile and can be used in various applications, including:
- Time-Base Generators: It can be used to generate precise timing signals, such as in the example of creating a 1.0 pulse/minute output using a 60Hz sinewave input and additional logic components.
- Counting and Timing Circuits: The 14-stage binary ripple counter is suitable for applications requiring sequential counting and timing functions.
- Automotive and Industrial Control Systems: Given its AEC-Q100 qualification and PPAP capability, it is suitable for use in automotive and other demanding environments.
Q & A
- What is the operating voltage range of the MC74HC4020ADG?
The operating voltage range is from 2.0 to 6.0 V.
- What is the maximum clock frequency of the MC74HC4020ADG?
The maximum clock frequency ranges from 10 to 50 MHz, depending on the supply voltage (VCC).
- How many stages does the MC74HC4020ADG counter have?
The device consists of 14 master-slave flip-flops, with 12 stages brought out to pins.
- What is the reset type of the MC74HC4020ADG?
The reset is asynchronous and active-high.
- Is the MC74HC4020ADG RoHS compliant?
- What are the package options for the MC74HC4020ADG?
The device is available in SOIC-16 and TSSOP-16 packages.
- What is the maximum propagation delay from clock to Q1?
The maximum propagation delay from clock to Q1 ranges from 25 to 96 ns, depending on VCC.
- What is the minimum pulse width for the clock input?
The minimum pulse width for the clock input ranges from 13 to 70 ns, depending on VCC.
- Is the MC74HC4020ADG suitable for automotive applications?
- What is the power dissipation in still air for the MC74HC4020ADG?
The power dissipation in still air is 450 to 500 mW, depending on the package.
