Overview
The 74HC4017DB,112 is a Johnson decade counter integrated circuit produced by Nexperia USA Inc. This component is part of the 74HC family and is characterized by its 5-stage counter with 10 decoded outputs. Although the product has been discontinued, it remains relevant for existing designs and legacy systems. The counter features two clock inputs and an asynchronous master reset input, making it versatile for various timing and counting applications.
Key Specifications
| Specification | Details |
|---|---|
| Counter Type | Johnson decade counter |
| Number of Decoded Outputs | 10 (Q0 to Q9) |
| Clock Inputs | Two (CP0 and CP1) |
| Reset Input | Asynchronous master reset (MR) |
| Supply Voltage Range | 2.0 V to 6.0 V |
| Input Levels | CMOS level for 74HC4017, TTL level for 74HCT4017 |
| Package Type | 16-SSOP |
| Operating Temperature Range | -40 °C to +85 °C and -40 °C to +125 °C |
| 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 from 2.0 V to 6.0 V
- CMOS low power dissipation
- High noise immunity
- Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
- Complies with JEDEC standards: JESD8C (2.7 V to 3.6 V) and JESD7A (2.0 V to 6.0 V)
- Multiple package options
- Automatic code correction within 11 clock pulses
- Inputs include clamp diodes for interfacing to voltages in excess of VCC
Applications
- Signal gating
- Frequency dividing circuits
- Time delay circuits
- General counting and timing applications
Q & A
- What is the 74HC4017DB,112? The 74HC4017DB,112 is a Johnson decade counter integrated circuit with 10 decoded outputs, produced by Nexperia USA Inc.
- What are the key features of the 74HC4017DB,112? It includes a wide supply voltage range, CMOS low power dissipation, high noise immunity, and automatic code correction.
- What are the input levels for the 74HC4017 and 74HCT4017? The 74HC4017 has CMOS level inputs, while the 74HCT4017 has TTL level inputs.
- How is the counter advanced? 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? The MR input is an asynchronous master reset that resets the counter to zero independent of the clock inputs.
- What is the operating temperature range of the 74HC4017DB,112? The operating temperature range is from -40 °C to +85 °C and from -40 °C to +125 °C.
- Is the 74HC4017DB,112 still available for purchase? The product has been discontinued, but it may still be available from some distributors or through legacy stock.
- What are some common applications of the 74HC4017DB,112? Common applications include signal gating, frequency dividing circuits, and time delay circuits.
- Does the 74HC4017DB,112 have ESD protection? Yes, it has ESD protection exceeding 2000 V for HBM and 1000 V for CDM.
- How many decoded outputs does the 74HC4017DB,112 have? It has 10 decoded outputs (Q0 to Q9).
