الصفحة الرئيسية > الدوائر المتكاملة الدوائر المتكاملة > SN74LS93N

SN74LS93N

4-bit binary ripple counter, ÷2+÷8 sections, LS TTL, PDIP-14

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جزء الشركة المصنعة ： جزء الشركة المصنعة

SN74LS93N

الحزمة ： الحزمة

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

العلامة التجارية ： العلامة التجارية
فئات المنتجات:：فئات المنتجات
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الشحن والدفع
الخدمة والتغليف
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الوصف

نظرة عامة على المنتج

The SN74LS93N from Texas Instruments is a 4-bit binary ripple counter consisting of a divide-by-2 section and a divide-by-8 section — when externally connected, it counts 0-15 in a 14-pin PDIP package.

المواصفات الرئيسية

الوظيفة 4-bit binary ripple counter
عائلة المنطق LS (Low-power Schottky)
جهد الإمداد 4.75V to 5.25V
Counter Sections Divide-by-2 (CP0/Q0) + Divide-by-8 (CP1/Q1,Q2,Q3)
Max Count 15 (4-bit binary, 0-15)
Trigger Negative edge (HIGH-to-LOW transition)
إعادة تعيين Asynchronous, gated AND (MR1·MR2, active HIGH)
الحد الأقصى لتردد الساعة 25MHz typical
تأخير الانتشار 70ns max @ 5V
درجة حرارة التشغيل 0°C to +70°C
الحزمة PDIP-14 (19.3 x 6.35mm)

الميزات

  • Two independent counter sections: ÷2 and ÷8
  • External connection Q0→CP1 creates ÷16 counter
  • Gated AND master reset (MR1 AND MR2 both HIGH = reset)
  • Negative-edge triggered
  • Typical power dissipation: 45mW

التطبيقات

  • 4-bit binary counting (0-15)
  • Frequency division by 2, 4, 8, 16
  • Time-delay circuits
  • Event counting

The SN74LS93N from Texas Instruments is a 4-bit binary ripple counter consisting of two independent sections: a divide-by-2 section (clocked by CP0, output Q0) and a divide-by-8 section (clocked by CP1, outputs Q1, Q2, Q3). The two sections are NOT internally connected — the designer must externally wire Q0 to CP1 to create a full 4-bit binary counter counting 0-15 with divide-by-2, 4, 8, and 16 outputs. This separation allows flexible configurations: using only the ÷2 section, only the ÷3/÷8 section, or both together. The negative-edge triggering (counting on the HIGH-to-LOW clock transition) is standard for the 74LS90/92/93 family. The gated AND master reset requires BOTH MR1 AND MR2 to be HIGH simultaneously to reset the counter; if either is LOW, counting continues. This allows one MR input to be used as an enable while the other provides the reset function. The 74LS93 is part of the 74LS90/92/93 family: LS90 is a decade (0-9) counter, LS92 is a divide-by-12 counter, and LS93 is a 4-bit binary (0-15) counter. The N suffix denotes the PDIP-14 through-hole package.

The SN74LS93N contains four JK flip-flops configured as two independent counter sections. Section 1: A single flip-flop with clock input CP0 and output Q0. It toggles on the HIGH-to-LOW transition of CP0, dividing the input frequency by 2. Section 2: Three flip-flops cascaded as a 3-bit ripple counter with clock input CP1 and outputs Q1, Q2, Q3. CP1 drives the first flip-flop (Q1), Q1 drives the second (Q2), and Q2 drives the third (Q3). The count sequence on Q3,Q2,Q1 is: 000→001→010→011→100→101→110→111→000 (divide by 8). For 4-bit binary counting: connect Q0 to CP1 externally. Input pulses on CP0; Q0 toggles at half the input rate; Q0’s HIGH-to-LOW transitions clock the ÷8 section. The full count on Q3,Q2,Q1,Q0 is 0000→0001→…→1111→0000 (0-15). Reset: when MR1 AND MR2 are both HIGH, all four flip-flops are cleared (Q0-Q3 = LOW). If either MR is LOW, the counter operates normally. The counter is negative-edge triggered throughout.

دبوس الاسم النوع الوصف
1 CP1 المدخلات Clock input for ÷8 section (negative edge)
2 MR1 المدخلات Master reset 1 (active HIGH, AND-gated with MR2)
3 MR2 المدخلات Master reset 2 (active HIGH, AND-gated with MR1)
4 نورث كارولاينا — No connection
5 VCC الطاقة Supply (5V)
6 MR1* المدخلات Master reset 1 (duplicate, connect together)
7 MR2* المدخلات Master reset 2 (duplicate, connect together)
8 Q2 المخرجات Counter output bit 2
9 Q1 المخرجات Counter output bit 1
10 Q3 المخرجات Counter output bit 3 (MSB)
11 Q0 المخرجات Counter output bit 0 (LSB, ÷2 section)
12 GND الطاقة أرضي
13 نورث كارولاينا — No connection
14 CP0 المدخلات Clock input for ÷2 section (negative edge)
  • 4-Bit Binary Counter (0-15): Q0 → CP1 (external wire); input pulses → CP0; MR1 and MR2 tied together; Q0-Q3 count 0-15; divide by 2,4,8,16
  • Independent ÷2 and ÷8: Two separate clocks: CP0 drives Q0 (÷2); CP1 drives Q1-Q3 (÷8); no external connection needed
  • Frequency Divider: CP0 input; Q0=÷2, Q1=÷4, Q2=÷8, Q3=÷16 (with Q0→CP1 connected)
  • Controlled Reset: MR1 tied HIGH; MR2 = enable signal; counter runs when MR2=LOW, resets when MR2=HIGH; one MR as gate, other as reset
الطراز الشركة المصنعة الفرق الرئيسي الحزمة Supply
74LS93N TI/Nexperia Original TTL version with 5V-only supply, typical propagation delay 10-15ns DIP-14 5V TTL
74LS93D TI/Nexperia Surface-mount SOIC version of LS with identical logic function SOIC-14 5V TTL
74HC93D TI/Nexperia CMOS version with wide 2-6V supply range, lower power consumption and higher noise immunity SOIC-14 2-6V CMOS
74HC93N TI/Nexperia Through-hole DIP version of HC family for prototyping and repair DIP-14 2-6V CMOS
74HCT93D TI/Nexperia CMOS with TTL-compatible input levels, ideal for mixing with LS devices at 5V SOIC-14 4.5-5.5V TTL-in
74HCT93N TI/Nexperia Through-hole DIP version of HCT family for prototyping and repair DIP-14 4.5-5.5V TTL-in

The 7493 is a 4-Bit Binary Ripple Counter. 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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العلامة التجارية:

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ضمان الجودة

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.

1. Authorized & Genuine Sourcing Promise

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.

2. Strict Full-batch Quality Inspection

We implement 100% full-batch quality control for all goods before shipment. Our professional QC team conducts multi-dimensional tests including appearance inspection, electrical parameter testing, performance verification and packaging check. Each batch of components is attached with complete inspection reports and batch records. We stick to zero-tolerance standards for defective products to ensure every piece of component meets industrial application requirements.

3. Industry Standard Compliance

Our products comply with a variety of international industry quality standards to adapt to high-standard application scenarios:
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For static-sensitive, moisture-sensitive and precision components such as ICs, PCBs, sensors and connectors, we carry out reliability screening in advance. Combined with standardized ESD anti-static packaging and vacuum moisture-proof packaging, we avoid component damage caused by static electricity, dampness or collision during storage and transportation, and retain the original performance of products.

5. Traceability Management System

We establish a complete product traceability system. Each batch of goods corresponds to independent batch number, sourcing record, inspection record and delivery record. Customers can query the whole lifecycle information of components at any time. This system effectively solves quality risks and facilitates after-sales handling and production quality control for your company.

6. After-sales Quality Guarantee

If any product is confirmed to have non-conformity quality problems due to our reasons after receipt, we provide free return, exchange and supplementary delivery services. Our professional quality team will also conduct root cause analysis to optimize our quality control process. We respond to quality feedback within 24 hours to resolve your worries efficiently.

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Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

الشحن والدفع

Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

1. Payment Terms

We offer a variety of secure and convenient payment methods to meet diverse business cooperation needs. Details are as follows:
  1. Accepted Payment Methods
  • T/T (Bank Wire Transfer): The primary settlement method for bulk orders and a widely used international payment channel.
  • PayPal: Ideal for small orders, sample orders and quick payments.

  1. Settlement Currency

     

    US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.

  2. Bank Charges

     

    All transfer fees, intermediary bank charges and other remittance-related expenses shall be borne by the buyer.

  3. Payment Requirements
  • Sample and small orders: Shipment will be arranged upon full payment.
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  • International Express: DHL, FedEx, UPS, TNT
  • Economy Logistics: Air freight and sea freight for large-volume cargo
  • Domestic Delivery: SF Express, Yunda Express
  1. Order Processing Time
  • In-stock items: Orders confirmed and fully paid before 14:00 (GMT+8) will be shipped on the same day. All other orders will be dispatched within 1 to 2 working days.
  • Out-of-stock or sourced items: The delivery lead time will be confirmed separately according to brand and inventory status.
  1. Estimated Transit Time
  • International Express: 3 – 7 working days globally
  • Air Freight: 7 – 12 working days
  • Sea Freight: 25 – 40 working days for heavy and large bulk cargo
  1. Shipping Fee Rules
  • Shipping cost is calculated based on package weight, volume, destination and delivery method.
  • Both freight prepaid and freight collect are available. Please provide your courier account number in advance if you choose freight collect.
  • Free international express delivery is offered for large orders. Terms for long-term partners can be negotiated separately.
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    Within 24 hours after dispatch, we will send the tracking number, commercial invoice, packing list and other documents to your email or communication account. You may check the shipment status online in real time.

3. General Order Rules & Notes

  1. MOQ & Sample Service

     

    We support flexible minimum order quantities for samples, small-batch and large-batch orders. All sample orders shall comply with the above shipping and payment policies.

  2. Packaging Standard

     

    All electronic components are packed with professional anti-static and shockproof materials. Original factory packaging is available for branded chips and integrated circuits.

4. Customs & Liability Statement

  1. Import Duties & Taxes

     

    All import duties, customs clearance fees and local taxes incurred for international shipments shall be borne by the buyer. We will provide complete customs documents to assist you with clearance procedures.

  2. Handling of Lost or Damaged Goods
  • In case of loss or severe damage during transit, please contact us within 48 hours after receiving the tracking information. We will assist you in filing a claim with the logistics provider.
  • We shall not be liable for any losses caused by incorrect delivery address, wrong contact information or the buyer’s refusal to complete customs clearance.

5. Local Pickup in Shenzhen

Local pickup service is available for customers in Shenzhen and surrounding areas:
  • Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
  • Business Hours: 09:00 – 18:00, Monday to Friday. Closed on weekends and official public holidays.
  • Notice: Please make an appointment via email or communication tools one day in advance, and present your order information upon pickup.

Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

الخدمة والتغليف

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.

Core Services

1. One-stop Sourcing & BOM Support

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

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

3. Fast Quotation & Order Processing

Our customer service team responds promptly to inquiries and quotation requests. All in-stock orders will be processed within one working day. We provide stocking reservation services for long-term cooperative customers, effectively solving problems such as component shortages and unstable supply chains.

4. Professional Technical Support

Our senior engineer team provides free technical consultation, model selection guidance and original manufacturer datasheets. We assist customers in solving problems related to product R&D, circuit design and component application, providing reliable technical support for project progress.

5. Sourcing for Special Components

Relying on our global supply chain network, we professionally source scarce components, obsolete parts and customized special components to efficiently solve your procurement difficulties.

6. Global Logistics & Document Services

We cooperate with mainstream international logistics providers including DHL, FedEx, UPS and TNT to achieve fast global delivery. We can provide complete export documents such as customs declaration files, commercial invoices and packing lists to ensure smooth customs clearance for international shipments. Local pickup is also available for customers in Shenzhen, China.

Professional Packaging Standards

Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

1. General Packaging Specifications

  • All components are packed separately to avoid damage caused by friction and collision;
  • Shockproof buffer materials are added for fragile products to ensure transportation safety;
  • Each package is clearly marked with part number, quantity, batch number and specifications for easy inventory counting and management.

2. Classified Professional Packaging

  • Anti-static Packaging: Static-sensitive components such as chips, circuit boards and sensors are packaged with anti-static bags, shielding boxes and conductive foam in strict accordance with international anti-static standards to prevent static damage.
  • Vacuum Moisture-proof Packaging: Moisture-sensitive components are vacuum-sealed with desiccants to isolate humid air, suitable for ocean transportation and long-term storage.
  • Original Factory Packaging: Integrated circuits of brands such as NXP are delivered with original reels, trays or tubes by default, retaining complete original packaging and adapting to automated SMT production lines.
  • Discrete Device Packaging: Discrete devices such as SMD resistors, power resistors and LEDs are quantitatively and classifiedly packaged with accurate quantity and clear marking.
  • Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.

3. Custom Packaging Services

We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

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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