Overview
The SN74HCT04NSR is a hex inverter integrated circuit produced by Texas Instruments. This device contains six independent inverters, each performing the Boolean function Y = A in positive logic. It is part of the 74HCT series, which is compatible with TTL (Transistor-Transistor Logic) voltage levels and operates within a voltage range of 4.5V to 5.5V. This makes it suitable for a variety of digital logic applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 4.5 | 5 | 5.5 | V |
| High-Level Input Voltage (VIH) | 2 | - | 2 | V |
| Low-Level Input Voltage (VIL) | 0.8 | - | 0.8 | V |
| Propagation Delay (tpd) | 14 | 13 | 20 | ns |
| Transition Time (tt) | 9 | 8 | 15 | ns |
| Output Drive at 5V | -4 | - | -4 | mA |
| Input Current (II) | ±0.1 | - | ±1000 | nA |
| Supply Current (ICC) | 2 | - | 20 | μA |
| Operating Temperature (TA) | -40 | - | 85 | °C |
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 SN74HCT04NSR is widely used in various digital logic circuits, including:
- Logic gates and inverters in digital systems
- Buffering and signal conditioning in digital circuits
- Level shifting and voltage translation
- General-purpose digital logic applications where TTL compatibility is required
Q & A
- What is the operating voltage range of the SN74HCT04NSR?
The operating voltage range is 4.5V to 5.5V.
- How many independent inverters does the SN74HCT04NSR contain?
The device contains six independent inverters.
- What is the typical propagation delay of the SN74HCT04NSR?
The typical propagation delay is 13ns.
- What is the maximum output drive at 5V for the SN74HCT04NSR?
The maximum output drive at 5V is ±4 mA.
- 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 SN74HCT04NSR in different packages?
The junction-to-ambient thermal resistance (RθJA) varies by package: 138.7°C/W for SOIC, 62.7°C/W for PDIP, 90.9°C/W for SOP, and 117.6°C/W for TSSOP.
- How should unused inputs of the device be handled?
All unused inputs must be held at VCC or GND to ensure proper device operation.
- What is the input current specification for the SN74HCT04NSR?
The input current (II) is ±0.1 nA to ±1000 nA.
- What is the supply current (ICC) of the SN74HCT04NSR?
The supply current (ICC) is 2 μA to 20 μA.
- What are the package options available for the SN74HCT04NSR?
The device is available in SOIC, PDIP, SOP, and TSSOP packages.
