Overview
The SN74AC04NSR is a hex inverter integrated circuit produced by Texas Instruments. This device contains six independent inverters, each performing the Boolean function Y = A, where the output Y is the logical inverse of the input A. The SN74AC04NSR operates over a wide voltage range from 2 V to 6 V, making it versatile for various digital logic applications.
Key Specifications
| Parameter | Test Conditions | Unit | Min | Max | |
|---|---|---|---|---|---|
| VCC Operating Range | V | 2 | 6 | ||
| Input Voltage Range | V | 0 | 6 | ||
| Low-level Output Current (IOL) | VCC = 5.5 V, VO = 0.4 V | mA | 24 | 24 | |
| High-level Output Current (IOH) | VCC = 5.5 V, VO = 2.5 V | mA | -24 | -24 | |
| Propagation Delay Time (tPLH) | VCC = 5 V, CL = 50 pF | ns | 1.5 | 4 | 7 |
| Propagation Delay Time (tPHL) | VCC = 5 V, CL = 50 pF | ns | 1.5 | 3.5 | 6.5 |
| Operating Free-Air Temperature | °C | -40 | 85 | ||
| Junction-to-Ambient Thermal Resistance (RθJA) | NS Package | °C/W | 76 |
Key Features
- Operates over a wide VCC range from 2 V to 6 V.
- Inputs accept voltages up to 6 V.
- Maximum propagation delay time of 7 ns at VCC = 5 V.
- Low power dissipation capacitance (Cpd) of 45 pF at VCC = 5 V and f = 1 MHz.
- Available in various packages including SOIC, SSOP, PDIP, SOP, and TSSOP.
- ESD protection to prevent damage from static electricity.
Applications
- Synchronizing inverted clock inputs in digital circuits.
- Debouncing switches to eliminate noise and ensure stable input signals.
- Inverting digital signals in various logic circuits.
- Bus interface applications where output ringing is a concern, utilizing its low-drive and slow edge rates to minimize overshoot and undershoot.
Q & A
- What is the operating voltage range of the SN74AC04NSR?
The SN74AC04NSR operates over a voltage range from 2 V to 6 V.
- How many independent inverters does the SN74AC04NSR contain?
The SN74AC04NSR contains six independent inverters.
- What is the maximum propagation delay time at VCC = 5 V?
The maximum propagation delay time (tPLH and tPHL) at VCC = 5 V is 7 ns.
- What are the typical applications of the SN74AC04NSR?
Typical applications include synchronizing inverted clock inputs, debouncing switches, inverting digital signals, and bus interface applications.
- What is the recommended operating temperature range for the SN74AC04NSR?
The recommended operating temperature range is from -40°C to 85°C.
- What are the available package types for the SN74AC04NSR?
The device is available in SOIC, SSOP, PDIP, SOP, and TSSOP packages.
- How should unused inputs be handled to ensure proper device operation?
Unused inputs must be held at VCC or GND to ensure proper device operation.
- What is the power dissipation capacitance (Cpd) at VCC = 5 V and f = 1 MHz?
The power dissipation capacitance (Cpd) is 45 pF at VCC = 5 V and f = 1 MHz.
- What are the ESD protection features of the SN74AC04NSR?
The device has ESD protection to prevent damage from static electricity.
- How should output conditions be managed to avoid exceeding maximum limits?
Load currents should not exceed 25 mA per output and 75 mA total for the part, and outputs should not be pulled above VCC.
