Overview
The 74HC4040D/AUJ, produced by NXP USA Inc. (now part of Nexperia), is a 12-stage binary ripple counter integrated circuit. This component features a clock input (CP) and an overriding asynchronous master reset input (MR), along with twelve parallel outputs (Q0 to Q11). The counter advances on the HIGH-to-LOW transition of the clock input, and a HIGH on the master reset input clears all counter stages, forcing all outputs LOW regardless of the clock input state. Each counter stage is a static toggle flip-flop, making it suitable for various digital logic applications.
Key Specifications
| Type Number | VCC (V) | Output Drive Capability (mA) | Logic Switching Levels | tpd (ns) | Power Dissipation Considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package Name |
|---|---|---|---|---|---|---|---|---|---|---|
| 74HC4040D | 2.0 - 6.0 | ± 5.2 | CMOS | 14 | Low | -40 to +125 | 83 | 5.2 | 41 | SO16 |
Key Features
- 12-stage binary ripple counter with a clock input (CP) and an overriding asynchronous master reset input (MR).
- Twelve parallel outputs (Q0 to Q11).
- 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.
- Inputs include clamp diodes for interfacing with voltages in excess of VCC.
- Multiple package options, including SO16.
Applications
- Frequency dividing circuits.
- Time delay circuits.
- Control counters.
- General-purpose digital logic applications requiring binary counting.
Q & A
- What is the 74HC4040D/AUJ?
The 74HC4040D/AUJ is a 12-stage binary ripple counter integrated circuit.
- What is the supply voltage range for the 74HC4040D/AUJ?
The supply voltage range is from 2.0 V to 6.0 V.
- How does the counter advance?
The counter advances on the HIGH-to-LOW transition of the clock input (CP).
- What is the effect of the master reset input (MR)?
A HIGH on the master reset input clears all counter stages and forces all outputs LOW, independent of the clock input state.
- What are the logic switching levels for the 74HC4040D/AUJ?
The logic switching levels are CMOS for the 74HC4040D.
- What is the operating temperature range for the 74HC4040D/AUJ?
The operating temperature range is from -40 °C to +125 °C.
- What are some common applications for the 74HC4040D/AUJ?
Common applications include frequency dividing circuits, time delay circuits, and control counters.
- Does the 74HC4040D/AUJ have ESD protection?
Yes, the component has ESD protection.
- What package options are available for the 74HC4040D/AUJ?
Multiple package options are available, including SO16.
- How does the component handle noise immunity?
The component has high noise immunity.
