SN74AS00NS Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74AS00NS is a quad 2-input NAND gate IC from Texas Instruments in the Advanced Schottky (AS) TTL logic family in a small-outline package. It operates from a 5 V supply with propagation delays as low as 1.5 ns. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- SN74AS00NS Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Quad 2-input NAND gate with Advanced Schottky TTL technology achieving propagation delays as low as 1.5 ns at 5 V
- High output drive current up to 20 mA sink / 2 mA source, capable of directly driving multiple TTL or CMOS inputs on a PCB
- Small-outline (SOIC) package reducing board space compared to DIP while maintaining full 5 V TTL compatibility for legacy system upgrades
Applications
The SN74AS00NS is used in high-speed digital logic circuits where fast NAND gate switching is required, such as clock gating, address decoding assist, and combinational logic arrays in 5 V TTL-based backplane systems. Its Advanced Schottky technology makes it a drop-in speed upgrade over standard 74LS00 or 74S00 devices in existing designs. Engineers also use it in pulse shaping, edge detection, and signal inversion circuits inside industrial controllers and communication interface boards.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74AS00NS:
Frequently Asked Questions
How fast is the SN74AS00NS compared to standard 74LS00 NAND gates in a 5 V system?
The SN74AS00NS uses Advanced Schottky (AS) technology with a typical propagation delay of approximately 1.5 ns at 5 V supply. Standard 74LS00 devices have a propagation delay of about 9 ns, so the AS variant is roughly 6 times faster, making it advantageous in high-frequency clock gating and fast combinational logic paths above 50 MHz.
What output drive current does the SN74AS00NS provide for driving bus lines or multiple gate inputs?
The SN74AS00NS can sink up to 20 mA at its outputs in the LOW state, which is sufficient to drive 20 standard TTL loads simultaneously. Its HIGH-state source current is 2 mA, compatible with CMOS and TTL inputs. This high fan-out makes it practical for centralized clock distribution or control signal driving across multi-chip 5 V boards.
Is the SN74AS00NS a direct replacement for a 74S00 or 74F00 NAND gate in an existing PCB design?
The SN74AS00NS is pin-compatible with 74S00 and 74F00 in an equivalent small-outline package, sharing the same 5 V supply, logic levels, and 14-pin pinout. Its AS technology has lower quiescent power than 74S00 while matching or exceeding 74F00 speed at roughly 1.5 ns propagation delay, making it a practical retrofit option in aging industrial or telecom hardware.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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