Overview
The MC74HC4040ADG is a 12-stage binary ripple counter produced by onsemi. This high-performance silicon-gate CMOS device is identical in pinout to the standard CMOS MC14040. It features 12 master-slave flip-flops, where the output of each flip-flop feeds the next, and the frequency at each output is half of that of the preceding one. The counter advances on the negative-going edge of the Clock input and has an asynchronous active-high Reset function. This device is compatible with standard CMOS outputs and, with pullup resistors, can also interface with LSTTL outputs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| DC Supply Voltage (VCC) | –0.5 to +7.0 | V |
| DC Input Voltage (Vin) | –0.5 to VCC + 0.5 | V |
| DC Output Voltage (Vout) | –0.5 to VCC + 0.5 | V |
| Maximum Clock Frequency (fmax) at VCC=2.0V | 9.0 | MHz |
| Maximum Clock Frequency (fmax) at VCC=6.0V | 45 | MHz |
| Maximum Propagation Delay, Clock to Q1 (tPLH) | 25-115 ns | ns |
| Maximum Propagation Delay, Reset to Any Q (tPHL) | 26-90 ns | ns |
| Operating Temperature Range | –55 to +125 | °C |
| Storage Temperature Range | –65 to +150 | °C |
| Power Dissipation in Still Air (SOIC Package) | 500 mW | mW |
| Power Dissipation in Still Air (TSSOP Package) | 450 mW | mW |
Key Features
- Output Drive Capability: 10 LSTTL Loads
- Outputs Directly Interface to CMOS, NMOS, and TTL
- Operating Voltage Range: 2.0 to 6.0 V
- Low Input Current: 1 μA
- High Noise Immunity Characteristic of CMOS Devices
- In Compliance With JEDEC Standard No. 7A Requirements
- Chip Complexity: 398 FETs or 99.5 Equivalent Gates
- NLV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC-Q100 Qualified and PPAP Capable
- Pb-Free, Halogen Free, and RoHS Compliant
Applications
The MC74HC4040ADG is versatile and can be used in various applications, including:
- Time-Base Generators: It can be used to generate precise timing signals. For example, it can be part of a circuit that generates a 1.0 pulse/minute output by decoding the counter outputs and resetting the binary counter.
- Frequency Dividers: Each output of the counter divides the clock input frequency by 2^n, making it suitable for frequency division tasks.
- Sequential Logic Circuits: The device can be integrated into more complex sequential logic circuits due to its master-slave flip-flop architecture.
Q & A
- What is the MC74HC4040ADG?
The MC74HC4040ADG is a 12-stage binary ripple counter produced by onsemi, designed for high-performance silicon-gate CMOS applications.
- What is the operating voltage range of the MC74HC4040ADG?
The operating voltage range is from 2.0 to 6.0 V.
- How does the counter advance?
The counter advances on the negative-going edge of the Clock input.
- What is the reset function of the MC74HC4040ADG?
The reset is asynchronous and active-high, resetting the counter to its zero state.
- What are the key features of the MC74HC4040ADG?
Key features include output drive capability for 10 LSTTL loads, compatibility with CMOS, NMOS, and TTL outputs, low input current, and high noise immunity.
- Is the MC74HC4040ADG RoHS compliant?
Yes, the device is Pb-Free, Halogen Free, and RoHS Compliant.
- What are some common applications of the MC74HC4040ADG?
Common applications include time-base generators, frequency dividers, and sequential logic circuits.
- How many master-slave flip-flops does the MC74HC4040ADG contain?
The device contains 12 master-slave flip-flops.
- What is the maximum clock frequency at VCC=6.0V?
The maximum clock frequency at VCC=6.0V is 45 MHz.
- What is the storage temperature range of the MC74HC4040ADG?
The storage temperature range is from –65 to +150°C.
- Is the MC74HC4040ADG suitable for automotive applications?
Yes, it is AEC-Q100 Qualified and PPAP Capable, making it suitable for automotive and other applications requiring unique site and control change requirements.
