Overview
The SN74HC4040PWR is a 12-stage asynchronous binary counter produced by Texas Instruments. This device is part of the HC4040 series, known for its wide operating voltage range and low power consumption. The counter features all stages with externally available outputs, making it versatile for various applications. A high level at the clear (CLR) input asynchronously clears the counter and resets all outputs low, while the count is advanced on a high-to-low transition at the clock (CLK) input.
Key Specifications
| Parameter | Unit | Min | Max | |
|---|---|---|---|---|
| Supply Voltage (VCC) | V | 2 | 5 | 6 |
| High-Level Input Voltage (VIH) | V | 1.5 (VCC=2V), 3.15 (VCC=4.5V), 4.2 (VCC=6V) | ||
| Low-Level Input Voltage (VIL) | V | 0.5 (VCC=2V), 1.35 (VCC=4.5V), 1.8 (VCC=6V) | ||
| High-Level Output Voltage (VOH) | V | 1.9 (IOH=-20μA), 3.98 (IOH=-4mA), 5.48 (IOH=-5.2mA) | ||
| Low-Level Output Voltage (VOL) | V | 0.1 (IOL=20μA), 0.17 (IOL=4mA), 0.15 (IOL=5.2mA) | ||
| Input Current (II) | nA | ±0.1 | ±1000 | |
| Supply Current (ICC) | μA | 8 | 160 | |
| Input Capacitance (Ci) | pF | 3 | 10 | |
| Clock Frequency (fCLK) | MHz | 3.7 (VCC=4.5V), 22 (VCC=6V) | 28 (VCC=4.5V), 33 (VCC=6V) | |
| Pulse Duration (tW) | ns | 18 (VCC=4.5V), 15 (VCC=6V) | 27 (VCC=4.5V), 23 (VCC=6V) | |
| Setup Time (tsu) | ns | 12 (VCC=4.5V), 10 (VCC=6V) | 18 (VCC=4.5V), 15 (VCC=6V) | |
| Propagation Delay (tpd) | ns | 16 (VCC=4.5V), 12 (VCC=6V) | 30 (VCC=4.5V), 26 (VCC=6V) |
Key Features
- Wide operating voltage range of 2 V to 6 V
- Outputs can drive up to 10 LSTTL loads
- Low power consumption, 80-µA max ICC
- Typical propagation delay (tpd) = 12 ns
- ±4-mA output drive at 5 V
- Low input current of 1 µA max
Applications
The SN74HC4040PWR is suitable for various applications including time-delay circuits, counter controls, and frequency-dividing circuits. Its asynchronous counting capability makes it useful in systems requiring sequential counting and timing functions.
Q & A
- What is the SN74HC4040PWR?
The SN74HC4040PWR is a 12-stage asynchronous binary counter produced by Texas Instruments. - What is the operating voltage range of the SN74HC4040PWR?
The operating voltage range is from 2 V to 6 V. - How many LSTTL loads can the outputs drive?
The outputs can drive up to 10 LSTTL loads. - What is the maximum supply current (ICC) of the SN74HC4040PWR?
The maximum supply current is 80 µA. - What is the typical propagation delay (tpd) of the SN74HC4040PWR?
The typical propagation delay is 12 ns. - How does the clear (CLR) input function?
A high level at the clear (CLR) input asynchronously clears the counter and resets all outputs low. - How is the count advanced in the SN74HC4040PWR?
The count is advanced on a high-to-low transition at the clock (CLK) input. - What are some common applications of the SN74HC4040PWR?
Common applications include time-delay circuits, counter controls, and frequency-dividing circuits. - What is the package type of the SN74HC4040PWR?
The package type is TSSOP (Thin Shrink Small Outline Package). - What is the operating temperature range of the SN74HC4040PWR?
The operating temperature range is from -40°C to 85°C.
