Overview
The MC74AC4040DR2G, produced by ON Semiconductor, is a 12-stage binary ripple counter integrated circuit. It consists of 12 master-slave flip-flops, where the output of each flip-flop feeds the next, and the frequency at each output is half that of the preceding one. The counter advances on the negative-going edge of the Clock input, and it features an asynchronous and active-high Reset. This device is particularly useful in applications requiring sequential counting and is available in Pb-free packages, ensuring compliance with environmental regulations.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| DC Supply Voltage (VCC) | 2.0 to 6.0 | V |
| Typical Clock Frequency | 140 | MHz |
| Output Source/Sink Current | ±24 | mA |
| Operating Temperature Range | -40 to +85 | °C |
| Maximum Quiescent Supply Current | 8.0 | μA |
| Input Rise/Fall Time | 25 ns/V (at VCC = 5.5 V) | ns/V |
| Propagation Delay (nCP to Q1) | 2.0 to 10 | ns |
| Power Dissipation in Still Air | 500 | mW |
| Moisture Sensitivity Level | 1 |
Key Features
- 12-stage binary ripple counter with master-slave flip-flops.
- Typical clock frequency of 140 MHz.
- Outputs can source or sink up to 24 mA.
- Operating voltage range from 2.0 to 6.0 V.
- High noise immunity.
- Pb-free packages available.
- Asynchronous and active-high Reset.
Applications
The MC74AC4040DR2G is suitable for various applications requiring sequential counting, such as:
- Digital counters and timers.
- Frequency dividers.
- Sequential logic circuits.
- Automotive and industrial control systems.
- Consumer electronics where counting and timing functions are necessary.
Q & A
- What is the typical clock frequency of the MC74AC4040DR2G?
The typical clock frequency is 140 MHz. - What is the operating voltage range of the MC74AC4040DR2G?
The operating voltage range is from 2.0 to 6.0 V. - How many stages does the MC74AC4040DR2G counter have?
The counter has 12 stages. - What type of reset does the MC74AC4040DR2G have?
The reset is asynchronous and active-high. - Can the MC74AC4040DR2G be used in high-noise environments?
Yes, it has high noise immunity. - What is the maximum output current of the MC74AC4040DR2G?
The outputs can source or sink up to 24 mA. - Is the MC74AC4040DR2G available in Pb-free packages?
Yes, Pb-free packages are available. - What is the propagation delay from nCP to Q1?
The propagation delay is between 2.0 to 10 ns. - What is the power dissipation in still air for the MC74AC4040DR2G?
The power dissipation is 500 mW. - What is the moisture sensitivity level of the MC74AC4040DR2G?
The moisture sensitivity level is 1.
