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SN74HC595DR

8-bit shift register with 3-state output latches, 2-6V, SOIC-16

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制造商零件：

SN74HC595DR

包装：

SOIC-16 (D) (9.9 x 3.9 x 1.58 mm)

品牌：
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说明

产品概览

The SN74HC595DR from Texas Instruments is an 8-bit serial-in/parallel-out shift register with output latches and 3-state outputs. It is one of the most widely used logic ICs for expanding output capabilities of microcontrollers. Using only 3 GPIO pins (data, clock, latch), it can control 8 output lines, and multiple devices can be daisy-chained for virtually unlimited expansion. The device operates from 2V to 6V and is housed in a 16-pin SOIC package for surface-mount applications.

主要规格

Bits 8-bit shift register + 8-bit storage register
电源电压 2V to 6V
输出类型 3-state (high, low, high-impedance)
Output Drive +/-6mA at 5V
Max Clock Frequency 24MHz at 5V
传播延迟 13ns typical at 5V
Supply Current 80uA max (ICC)
Input Current 1uA max
工作温度 -40 to 85°C
包装 SOIC-16 (D)

特点

  • 8-bit serial-in, parallel-out shift register with output storage register
  • Separate clocks for shift and storage registers
  • Direct overriding clear (SRCLR) input
    • 3-state outputs can drive up to 15 LSTTL loads
  • Serial output (QH’) for daisy-chaining multiple devices
  • Low power consumption: 80uA max ICC
  • Wide operating voltage range: 2V to 6V

应用

  • LED display and matrix driving
  • Microcontroller I/O expansion
  • 7-segment display multiplexing
  • Relay and solenoid driver control
  • Digital logic delay and storage circuits

The SN74HC595DR from Texas Instruments is a classic 8-bit shift register with output storage register and 3-state outputs, belonging to the 74HC logic family. It is one of the most popular logic ICs in embedded design, used to expand the number of digital outputs available from a microcontroller. Using just three control signals (SER, SRCLK, RCLK), a single device provides 8 output lines, and multiple devices can be cascaded through the serial output (QH’) pin for unlimited expansion. The separate shift and storage registers allow new data to be shifted in while the current output remains stable, preventing flicker in display applications. The SOIC-16 surface-mount package is suitable for automated PCB assembly.

The SN74HC595DR contains two 8-bit registers operating in tandem. The shift register accepts serial data on the SER input, clocked in on each rising edge of SRCLK. After 8 bits have been shifted in, the RCLK (register clock) rising edge transfers the shift register contents to the storage register, which directly drives the 8 parallel outputs (QA-QH). The SRCLR (shift register clear) input resets the shift register independently of the storage register. The OE (output enable) input, when high, places all outputs in a high-impedance state, while internal register data and the QH’ serial output remain unaffected. The QH’ output provides the 9th and subsequent shift register bits for daisy-chaining additional 595 devices. This dual-register architecture ensures glitch-free output transitions since outputs only update when RCLK is pulsed.

针脚 名称 类型 功能
1 QB 输出 Storage register output B
2 QC 输出 Storage register output C
3 QD 输出 Storage register output D
4 QE 输出 Storage register output E
5 QF 输出 Storage register output F
6 QG 输出 Storage register output G
7 QH 输出 Storage register output H
8 接地 地面 地面
9 QH’ 输出 Serial output for cascading
10 SRCLR 输入 Shift register clear (active low)
11 SRCLK 输入 Shift register clock
12 RCLK 输入 Storage register clock (latch)
13 OE 输入 Output enable (active low)
14 SER 输入 串行数据输入
15 QA 输出 Storage register output A
16 VCC 电源 Supply voltage (2-6V)
  • LED matrix and 7-segment display driving with multiplexed control
  • Microcontroller I/O expansion for relay, solenoid, and actuator control
  • Daisy-chained shift register networks for large-scale digital output systems
  • Shift-and-store data buffering in digital communication interfaces
  • Hobbyist and educational projects for GPIO expansion on Arduino/Raspberry Pi
制造商 部件编号 包装 说明
TI SN74HC595N DIP-16 Through-hole version
TI SN74HCS595DR SOIC-16 Schmitt trigger inputs version
恩智浦 74HC595D SOIC-16 Pin compatible equivalent
微型芯片 74HC595 SOIC-16 Generic HC595 equivalent
ST M74HC595M1R SOIC-16 Pin compatible, same function
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质量保证

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:
  • 汽车电子: All automotive-grade components pass AEC-Q series certification, featuring excellent stability and durability to adapt to complex vehicle operating environments.
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  • Industrial Control & Consumer Electronics: Products conform to universal international electronic industry standards, suitable for long-term continuous operation of various equipment.

4. Professional Reliability Control

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.

联系我们

If you have inquiries about our quality standards, inspection procedures or product certification documents, 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

 

发货与付款

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.
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  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.
  • In-stock bulk orders: Goods will be delivered within 2 to 3 working days after full payment.

2. Shipping & Delivery

We partner with leading global logistics providers to ensure safe and fast delivery worldwide. Relevant details are listed below:
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  • International Express: DHL, FedEx, UPS, TNT
  • Economy Logistics: Air freight and sea freight for large-volume cargo
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  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
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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.

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  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

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.

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;
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2. Classified Professional Packaging

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  • 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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