Overview
The SN74HC00NG4, produced by Texas Instruments, is a quadruple 2-input NAND gate integrated circuit. This device contains four independent NAND gates, each performing the Boolean function Y = A × B in positive logic. It is part of the 74HC series, known for its high-speed CMOS logic and wide operating voltage range.
The SN74HC00NG4 is available in a 14-pin PDIP (Plastic Dual In-Line Package) and is suitable for a variety of applications requiring logical operations.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | -0.5 | 7 | V | |
| Input Clamp Current (IIK) | ±20 | mA | ||
| Output Clamp Current (IOK) | ±20 | mA | ||
| Continuous Output Current (IO) | ±25 | mA | ||
| Junction Temperature (TJ) | 150 | °C | ||
| Storage Temperature (Tstg) | -65 | 150 | °C | |
| Operating Free-Air Temperature (TA) | -40 | 85 | °C | |
| Propagation Delay (tpd) at VCC=2V | 45 | 90 | 135 | ns |
| Propagation Delay (tpd) at VCC=4.5V | 9 | 18 | 27 | ns |
| Propagation Delay (tpd) at VCC=6V | 8 | 15 | 23 | ns |
Key Features
- Wide Operating Voltage Range: From 2 V to 6 V, making it versatile for various applications.
- Low Power Consumption: Maximum ICC of 20 µA, reducing power requirements.
- High-Speed Operation: Typical propagation delay of 8 ns at 5 V VCC.
- Buffered Inputs: Ensuring stable input signals.
- CMOS Push-Pull Outputs: Capable of driving up to 10 LSTTL loads.
- Low Input Current: Maximum of 1 µA, minimizing the load on input sources.
- Wide Operating Temperature Range: From -40°C to +85°C, suitable for diverse environmental conditions.
Applications
- Alarm and Tamper Detect Circuits: Used in security systems to detect and indicate tampering.
- S-R Latches: Can be configured to create active-low SR latches for memory and control applications.
- AV Receivers and Home Theater Systems: Utilized in audio and video processing circuits.
- Portable Audio Docks and MP3 Players/Recorders: Employed in portable electronic devices for logical operations.
- Telecom and Server Power Supplies: Used in power management and control circuits.
- Solid State Drives (SSDs): Applied in data storage and retrieval systems.
- Wireless Devices (Headsets, Keyboards, Mice): Incorporated into wireless peripherals for logical functions.
Q & A
- What is the function of the SN74HC00NG4?
The SN74HC00NG4 contains four independent 2-input NAND gates, each performing the Boolean function Y = A × B in positive logic.
- What is the operating voltage range of the SN74HC00NG4?
The operating voltage range is from 2 V to 6 V.
- What is the typical propagation delay of the SN74HC00NG4 at 5 V VCC?
The typical propagation delay is 8 ns.
- How many LSTTL loads can the SN74HC00NG4 drive?
The device can drive up to 10 LSTTL loads.
- What is the maximum input current of the SN74HC00NG4?
The maximum input current is 1 µA.
- What is the maximum junction temperature for the SN74HC00NG4?
The maximum junction temperature is 150°C.
- Can the SN74HC00NG4 be used in high-temperature environments?
Yes, it operates from -40°C to +85°C.
- How should unused inputs be handled on the SN74HC00NG4?
Unused inputs should be terminated to either VCC or ground, possibly using pull-up or pull-down resistors.
- What is the recommended capacitive load for the SN74HC00NG4 outputs?
The capacitive load should be ≤ 50 pF for optimal performance.
- Can the SN74HC00NG4 be used in safety-critical applications?
No, it is not recommended for use in safety-critical applications without proper validation and testing.
