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SN74LS00N

Quad 2-input NAND gate, LS TTL, 15ns, PDIP-14, universal gate

15000

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制造商零件：

SN74LS00N

包装：

PDIP-14 (19.3 x 6.35 x 4.57mm, 2.54mm pitch, through-hole)

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说明

产品概览

The SN74LS00N from Texas Instruments is a quad 2-input NAND gate—the most fundamental and widely-used TTL logic IC—with 15ns propagation delay and industry-standard 7400 pinout in a 14-pin PDIP package.

主要规格

Number of Gates 4 (quad 2-input NAND)
逻辑家族 LS (Low-power Schottky)
电源电压 4.75V to 5.25V (5V nominal)
传播延迟 15ns typical @ 5V
Output Drive (IOL/IOH) 8mA / -0.4mA
工作温度 0°C to +70°C
包装 PDIP-14 (19.3 x 6.35mm)

特点

  • Four independent 2-input NAND gates
  • LS TTL technology
  • 15ns typical propagation delay
  • Industry-standard 7400 pinout
  • NAND is a universal logic gate

应用

  • General-purpose logic gating
  • SR latch construction
  • Active-low signal combination
  • Logic function implementation
  • Glue logic in digital systems

The SN74LS00N from Texas Instruments contains four independent 2-input NAND gates in a 14-pin PDIP package—the original and most iconic TTL logic IC. Each gate performs the Boolean function Y = NOT(A AND B); the output is LOW only when both inputs are HIGH. The NAND gate is a universal gate: any Boolean function can be implemented using only NAND gates. An inverter is a NAND with both inputs tied together; an AND is a NAND followed by an inverter (two NANDs); an OR is NAND gates with inverted inputs. Two NAND gates cross-coupled form an SR latch. The 74LS00 is the simplest and most versatile logic building block, found in virtually every digital system from the 1970s to today. The N suffix denotes the PDIP-14 through-hole package.

Each NAND gate in the SN74LS00N performs Y = A NAND B = NOT(A AND B). The truth table is: 00→1, 01→1, 10→1, 11→0. The output is LOW only when ALL inputs are HIGH. As a universal gate, the NAND can implement any Boolean function: NOT(A) = A NAND A; A AND B = NOT(A NAND B) = (A NAND B) NAND (A NAND B); A OR B = (A NAND A) NAND (B NAND B). Two cross-coupled NAND gates form an SR latch: if S goes LOW, Q goes HIGH; if R goes LOW, Q goes LOW. When both S and R are HIGH, the latch holds its previous state. The LS (Low-power Schottky) technology uses Schottky-clamped transistors that prevent deep saturation, providing 15ns propagation delay—3× faster than standard 7400 TTL—while consuming only about 2mW per gate.

针脚 名称 类型 说明
1 1A 输入 Gate 1 input A
2 1B 输入 Gate 1 input B
3 1Y 输出 Gate 1 output (NAND)
4 2A 输入 Gate 2 input A
5 2B 输入 Gate 2 input B
6 2Y 输出 Gate 2 output (NAND)
7 接地 电源 地面
8 3Y 输出 Gate 3 output (NAND)
9 3A 输入 Gate 3 input A
10 3B 输入 Gate 3 input B
11 4Y 输出 Gate 4 output (NAND)
12 4A 输入 Gate 4 input A
13 4B 输入 Gate 4 input B
14 VCC 电源 Supply (4.75V to 5.25V)
  • SR Latch: Two NAND gates cross-coupled; S=LOW sets Q=HIGH; R=LOW resets Q=LOW; simplest memory element
  • Inverter: Tie both inputs together; NAND(A,A) = NOT(A); saves using a 7404
  • Active-LOW AND: NAND combines two active-low inputs; output goes HIGH when EITHER input goes LOW
  • Glue Logic: General-purpose NAND for combinational logic; implements any Boolean function with enough gates
  • Oscillator: Three NAND gates in a ring (each output to next input) with RC delay; simple clock generator
模型 制造商 主要区别 包装 Supply
74LS00N TI/Nexperia Original TTL version with 5V-only supply, typical propagation delay 10-15ns DIP-14 5V TTL
74LS00D TI/Nexperia Surface-mount SOIC version of LS with identical logic function SOIC-14 5V TTL
74HC00D TI/Nexperia CMOS version with wide 2-6V supply range, lower power consumption and higher noise immunity SOIC-14 2-6V CMOS
74HC00N TI/Nexperia Through-hole DIP version of HC family for prototyping and repair DIP-14 2-6V CMOS
74HCT00D TI/Nexperia CMOS with TTL-compatible input levels, ideal for mixing with LS devices at 5V SOIC-14 4.5-5.5V TTL-in
74HCT00N TI/Nexperia Through-hole DIP version of HCT family for prototyping and repair DIP-14 4.5-5.5V TTL-in
74AC00D TI/Nexperia Advanced CMOS with 2-6V supply and higher output drive current (24mA vs 6mA for HC) SOIC-14 2-6V CMOS
74AC00N TI/Nexperia Through-hole DIP version of AC family for prototyping and repair DIP-14 2-6V CMOS
74LVC00D TI/Nexperia Low-voltage CMOS for 1.65-3.6V modern logic with 24mA output drive and bus-hold inputs SOIC-14 1.65-3.6V CMOS
74LVC00N TI/Nexperia Through-hole DIP version of LVC family for prototyping and repair DIP-14 1.65-3.6V CMOS
74AUP00D TI/Nexperia Ultra-low power CMOS with 0.8-3.6V supply for battery-powered and mobile applications SOIC-14 0.8-3.6V CMOS
74AUP00N TI/Nexperia Through-hole DIP version of AUP family for prototyping and repair DIP-14 0.8-3.6V CMOS

The 7400 is a Quad 2-Input NAND Gate. Family variants span from the original LS TTL (5V only) to modern LVC/AUP (down to 0.8V). HC and HCT versions offer 2-6V CMOS operation with HCT providing TTL-compatible input thresholds for mixed 5V systems. CD4000-series equivalents offer the widest 3-18V supply range at the cost of lower switching speed. DIP packages (N suffix) are through-hole; SOIC (D suffix) and TSSOP are surface-mount.

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Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

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All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

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Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

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Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

服务与包装

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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We specialize in a full range of passive and active electronic components, including SMD resistors, power resistors, connectors, aviation connectors, LED beads, flexible circuit boards, printed circuit boards, and integrated circuits. Our professional team provides BOM list consolidation, component matching, and alternative model recommendation services. We support sample orders, small-batch trial production, and mass production orders with flexible MOQs to meet diverse procurement needs.

2. Genuine Product Guarantee & Full-process Quality Inspection

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Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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