Overview
The 74HC4040D/AU118 is a 12-stage binary ripple counter produced by NXP USA Inc. This integrated circuit is part of the 74HC series, known for its high noise immunity and low power dissipation. The counter features a clock input (CP) and an overriding asynchronous master reset input (MR), along with twelve parallel outputs (Q0 to Q11). It advances on the HIGH-to-LOW transition of the clock input and can be reset to zero by a HIGH signal on the master reset input, independent of the clock state.
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 available.
Applications
- Frequency dividing circuits.
- Time delay circuits.
- Control counters.
- General purpose counting applications.
Q & A
- What is the 74HC4040D/AU118 used for? The 74HC4040D/AU118 is a 12-stage binary ripple counter used in various counting applications, including frequency dividing circuits, time delay circuits, and control counters.
- What is the supply voltage range of the 74HC4040D/AU118? The supply voltage range is from 2.0 V to 6.0 V.
- What are the logic switching levels for the 74HC4040D/AU118? The logic switching levels are CMOS.
- 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 signal on the master reset input (MR) clears all counter stages and forces all outputs LOW, independent of the state of the clock input.
- What is the output drive capability of the 74HC4040D/AU118? The output drive capability is ± 5.2 mA.
- What are the operating temperature ranges for the 74HC4040D/AU118? The device is specified to operate from -40 °C to +125 °C.
- Does the 74HC4040D/AU118 have ESD protection? Yes, it has ESD protection.
- What package options are available for the 74HC4040D/AU118? The device is available in multiple package options, including SO16.
- What are the power dissipation considerations for the 74HC4040D/AU118? The device has low power dissipation.
