Overview
The SN74HC04DRG4 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 74HC series, known for its high-speed CMOS logic and wide operating voltage range.
The SN74HC04DRG4 is available in a 14-pin SOIC package and is designed to operate over a wide temperature range from –40°C to +85°C, making it suitable for various applications in digital electronics.
Key Specifications
| Parameter | Condition | Min | Max | Unit | |
|---|---|---|---|---|---|
| VCC (Supply Voltage) | 2 | 6 | V | ||
| TA (Operating Free-Air Temperature) | –40 | 85 | °C | ||
| VOH (High-Level Output Voltage) | VCC = 4.5 V, IOH = –20 µA | 4.4 | 4.499 | 4.4 | V |
| VOL (Low-Level Output Voltage) | VCC = 4.5 V, IOL = 20 µA | 0.001 | 0.1 | 0.1 | V |
| tpd (Propagation Delay) | VCC = 4.5 V | 9 | 19 | 24 | ns |
| tt (Transition Time) | VCC = 4.5 V | 8 | 15 | 19 | ns |
| ICC (Supply Current) | VCC = 6 V, VI = VCC or 0 | 2 | 20 | µA | |
| Ci (Input Capacitance) | VCC = 2 V to 6 V | 3 | 10 | pF |
Key Features
- Buffered Inputs: Ensures stable and reliable input signals.
- Wide Operating Voltage Range: Operates from 2 V to 6 V, making it versatile for different applications.
- Wide Operating Temperature Range: Functions from –40°C to +85°C, suitable for various environmental conditions.
- High Fanout Capability: Supports up to 10 LSTTL loads, enhancing its utility in complex digital circuits.
- Low Power Consumption: Significant power reduction compared to LSTTL logic ICs.
- Balanced CMOS Push-Pull Outputs: Allows the device to sink and source similar currents, ensuring balanced output performance.
- Clamp Diode Structure: Includes positive and negative clamping diodes to protect against voltage spikes.
Applications
- Synchronizing Inverted Clock Inputs: Useful in timing and clock signal management in digital circuits.
- Debouncing Switches: Helps in stabilizing switch inputs to prevent multiple triggers.
- Inverting Digital Signals: Essential for logic operations where signal inversion is required.
- Adding Stages to Counters: Can be used to add an additional stage to counters with external flip-flops.
- Improving Signal Integrity: The inverters can be used to improve the integrity of digital signals in various applications.
Q & A
- What is the primary function of the SN74HC04DRG4?
The primary function of the SN74HC04DRG4 is to perform six independent inverter operations, each following the Boolean function Y = A in positive logic.
- What is the operating voltage range of the SN74HC04DRG4?
The SN74HC04DRG4 operates over a voltage range from 2 V to 6 V.
- What is the operating temperature range of the SN74HC04DRG4?
The device operates from –40°C to +85°C.
- How many LSTTL loads can the SN74HC04DRG4 support?
The SN74HC04DRG4 can support up to 10 LSTTL loads.
- What is the significance of the clamp diode structure in the SN74HC04DRG4?
The clamp diode structure protects the device against voltage spikes by clamping input and output voltages within safe limits.
- How many inverters are included in the SN74HC04DRG4?
The device contains six independent inverters.
- What is the typical propagation delay of the SN74HC04DRG4 at VCC = 4.5 V?
The typical propagation delay is 19 ns at VCC = 4.5 V.
- What is the maximum supply current for the SN74HC04DRG4 at VCC = 6 V?
The maximum supply current is 20 µA at VCC = 6 V.
- Can unused inputs be left floating in the SN74HC04DRG4?
No, unused inputs must be terminated at VCC or GND to ensure proper operation.
- What are some common applications of the SN74HC04DRG4?
