Overview
The 74HC4017DB,118 is a Johnson decade counter integrated circuit produced by NXP USA Inc. This component is part of the 74HC family, known for its high-speed CMOS logic. The 74HC4017DB is a 5-stage Johnson decade counter with 10 decoded outputs, making it versatile for various counting and sequencing applications. Although the specific part number 74HC4017DB,118 is listed as discontinued, its functionality and specifications remain relevant for understanding its capabilities.
Key Specifications
| Specification | Value |
|---|---|
| Supply Voltage Range | 2.0 V to 6.0 V |
| Package Type | SO16 (16-pin SOIC) |
| Number of Stages | 5-stage Johnson decade counter |
| Decoded Outputs | 10 (Q0 to Q9) |
| Clock Inputs | Two (CP0 and CP1) |
| Reset Input | Asynchronous master reset (MR) |
| Operating Temperature Range | -40 °C to +85 °C (and up to +125 °C for some versions) |
| ESD Protection | HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V |
Key Features
- Wide Supply Voltage Range: Operates from 2.0 V to 6.0 V, making it compatible with a variety of power sources.
- CMOS Low Power Dissipation: Low power consumption, which is beneficial for battery-powered devices and energy-efficient designs.
- High Noise Immunity: Provides robust performance in noisy environments.
- Latch-up Performance: Exceeds 100 mA per JESD 78 Class II Level B, ensuring reliable operation.
- Compliance with JEDEC Standards: Meets JESD8C (2.7 V to 3.6 V) and JESD7A (2.0 V to 6.0 V) standards.
- Multiple Package Options: Available in various packages, including SO16 and others, to suit different design needs.
- Automatic Code Correction: The counter returns to a proper counting mode within 11 clock pulses after any illegal code.
Applications
- Counting and Sequencing: Ideal for applications requiring decade counting, such as in digital displays, timers, and sequencers.
- Digital Signal Processing: Can be used in digital signal processing circuits where precise counting is necessary.
- Frequency Counters: Suitable for frequency counter applications due to its accurate and reliable counting mechanism.
- Automotive and Industrial Control Systems: Used in various control systems where robust and reliable counting is required.
Q & A
- What is the 74HC4017DB,118 used for?
The 74HC4017DB,118 is a Johnson decade counter used for counting and sequencing applications.
- What is the supply voltage range of the 74HC4017DB,118?
The supply voltage range is from 2.0 V to 6.0 V.
- How many decoded outputs does the 74HC4017DB,118 have?
It has 10 decoded outputs (Q0 to Q9).
- What are the clock input conditions for the 74HC4017DB,118?
The counter is advanced by either a LOW-to-HIGH transition at CP0 while CP1 is LOW or a HIGH-to-LOW transition at CP1 while CP0 is HIGH.
- What is the purpose of the MR input on the 74HC4017DB,118?
The MR input is an asynchronous master reset that resets the counter to zero (Q0 = Q5-9 = HIGH; Q1 to Q9 = LOW) independent of the clock inputs.
- Does the 74HC4017DB,118 have ESD protection?
Yes, it has ESD protection exceeding 2000 V for HBM and 1000 V for CDM.
- What are the operating temperature ranges for the 74HC4017DB,118?
The operating temperature range is from -40 °C to +85 °C (and up to +125 °C for some versions).
- Is the 74HC4017DB,118 still available for purchase?
The specific part number 74HC4017DB,118 is listed as discontinued, but similar versions may still be available.
- What are some common applications of the 74HC4017DB,118?
Common applications include counting and sequencing, digital signal processing, frequency counters, and automotive and industrial control systems.
- How does the automatic code correction feature work?
The counter returns to a proper counting mode within 11 clock pulses after any illegal code.
