Overview
The SN74HCT04N is a hex inverter integrated circuit produced by Texas Instruments. It is part of the 74HCT series, which is compatible with TTL (Transistor-Transistor Logic) voltage levels. This device contains six independent inverters, each performing the Boolean function Y = A in positive logic. The SN74HCT04N is available in a 14-pin PDIP (Plastic Dual In-Line Package) and is suitable for a wide range of digital logic applications.
Key Specifications
| Parameter | Unit | Min | Max | |
|---|---|---|---|---|
| VCC (Supply Voltage) | V | 4.5 | 5 | 5.5 |
| VIH (High-level Input Voltage) | V | 2 | - | - |
| VIL (Low-level Input Voltage) | V | 0.8 | - | - |
| VOH (High-level Output Voltage) @ IOH = -20 μA | V | 4.4 | - | 4.499 |
| VOL (Low-level Output Voltage) @ IOL = 20 μA | V | 0.1 | - | 0.1 |
| ICC (Supply Current) @ VI = VCC or 0, IO = 0 | μA | 2 | - | 20 |
| tpd (Propagation Delay) @ CL = 50 pF | ns | 13 | - | 27 |
| tt (Transition Time) @ CL = 50 pF | ns | 8 | - | 20 |
| TA (Operating Free-Air Temperature) | °C | -40 | - | 85 |
Key Features
- Operating voltage range of 4.5V to 5.5V
- Outputs can drive up to 10 LSTTL loads
- Low power consumption, 20-μA max ICC
- Typical propagation delay of 13ns
- ±4-mA output drive at 5V
- Low input current of 1μA max
- Inputs are TTL-Voltage compatible
Applications
The SN74HCT04N is versatile and can be used in various digital logic circuits, including:
- General-purpose logic circuits
- Buffering and inverting signals
- Level shifting between different logic families
- Embedded systems and microcontroller projects
- Digital signal processing and control systems
Q & A
- What is the operating voltage range of the SN74HCT04N?
The operating voltage range is from 4.5V to 5.5V.
- How many independent inverters does the SN74HCT04N contain?
The device contains six independent inverters.
- What is the typical propagation delay of the SN74HCT04N?
The typical propagation delay is 13ns.
- What is the maximum supply current of the SN74HCT04N?
The maximum supply current is 20 μA.
- What is the recommended bypass capacitor for the power supply?
A 0.1-μF capacitor is recommended, and it is acceptable to parallel multiple bypass caps to reject different frequencies of noise.
- What are the thermal resistance values for the PDIP package?
The junction-to-ambient thermal resistance (RθJA) for the PDIP package is 62.7 °C/W.
- What are the input voltage levels for the SN74HCT04N?
The high-level input voltage (VIH) is 2V, and the low-level input voltage (VIL) is 0.8V.
- Can the inputs of the SN74HCT04N be left floating?
No, all unused inputs must be held at VCC or GND to ensure proper device operation.
- What is the output drive capability of the SN74HCT04N?
The outputs can drive up to 10 LSTTL loads and provide ±4-mA output drive at 5V.
- What is the operating temperature range for the SN74HCT04N?
The operating free-air temperature range is from -40°C to 85°C.
