Overview
The SN74LS00NS is a quadruple 2-input positive-NAND gate integrated circuit produced by Texas Instruments. This device is part of the 74LS series, known for its low power Schottky (LS) technology, which offers improved performance and reduced power consumption compared to standard TTL logic.
The SN74LS00NS contains four independent NAND gates, each performing the Boolean function Y = A . B or Y = A + B in positive logic. This makes it versatile for various digital logic applications.
Although the SN74LS00NS is listed as obsolete, it remains relevant for legacy systems and educational purposes.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| VCC Supply Voltage | 4.75 | 5.0 | 5.25 | V |
| TA Operating Ambient Temperature Range | 0 | 25 | 70 | °C |
| VIH Input HIGH Voltage | - | 2.0 | - | V |
| VIL Input LOW Voltage | - | 0.8 | - | V |
| IOH Output Current – High | -0.4 | - | - | mA |
| IOL Output Current – Low | - | - | 8.0 | mA |
| tPLH Turn–Off Delay, Input to Output | 9.0 | 15 | - | ns |
| tPHL Turn–On Delay, Input to Output | 10 | 15 | - | ns |
Key Features
- Four independent 2-input NAND gates in a single package.
- Low power Schottky (LS) technology for reduced power consumption.
- Inputs are TTL compliant with VIH = 2 V and VIL = 0.8 V.
- Inputs can accept 3.3-V or 2.5-V logic inputs.
- Available in various package options including Plastic Small-Outline (D, NS, PS), Shrink Small-Outline (DB), Ceramic Flat (W), Ceramic Chip Carriers (FK), Standard Plastic (N), and Ceramic (J).
- ESD protection: Human-body model (HBM) ±500 V, Charged-device model (CDM) ±2000 V.
Applications
- Audio and video equipment such as AV receivers, portable audio docks, and Blu-Ray players.
- Home theater systems and MP3 players or recorders.
- Personal Digital Assistants (PDAs) and other portable electronic devices.
- Error detection and indication in various digital systems.
Q & A
- What is the primary function of the SN74LS00NS?
The SN74LS00NS is a quadruple 2-input positive-NAND gate, performing the Boolean function Y = A . B or Y = A + B in positive logic.
- What is the operating voltage range for the SN74LS00NS?
The operating voltage range is from 4.75 V to 5.25 V.
- What are the input voltage levels for the SN74LS00NS?
The input HIGH voltage (VIH) is 2 V, and the input LOW voltage (VIL) is 0.8 V.
- What are the output current capabilities of the SN74LS00NS?
The output current – High (IOH) is –0.4 mA, and the output current – Low (IOL) is 8.0 mA.
- What are the typical propagation delays for the SN74LS00NS?
The turn-off delay (tPLH) is 9-15 ns, and the turn-on delay (tPHL) is 10-15 ns.
- What package options are available for the SN74LS00NS?
It is available in Plastic Small-Outline (D, NS, PS), Shrink Small-Outline (DB), Ceramic Flat (W), Ceramic Chip Carriers (FK), Standard Plastic (N), and Ceramic (J) packages.
- Is the SN74LS00NS ESD protected?
Yes, it has ESD protection with Human-body model (HBM) ±500 V and Charged-device model (CDM) ±2000 V.
- What are some common applications of the SN74LS00NS?
It is used in audio and video equipment, home theater systems, MP3 players, and personal digital assistants (PDAs), among other applications.
- Is the SN74LS00NS still in production?
No, the SN74LS00NS is listed as obsolete and is no longer in production.
- What is the operating temperature range for the SN74LS00NS?
The operating temperature range is from 0°C to 70°C.
