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SN74HC595N

8-bit shift register with output latch, 3-state outputs, 25MHz, 16-PDIP

7553

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جزء الشركة المصنعة ： جزء الشركة المصنعة

SN74HC595N

الحزمة ： الحزمة

16-PDIP

العلامة التجارية ： العلامة التجارية
فئات المنتجات:：فئات المنتجات
الالتزام بالجودة
الشحن والدفع
الخدمة والتغليف
دليل المنتج
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الوصف

نظرة عامة على المنتج

The SN74HC595N from Texas Instruments is an 8-bit shift register with output latch and 3-state outputs. It converts serial input to 8-bit parallel output using only 3 MCU pins, with daisy-chain capability for unlimited output expansion. Packaged in 16-PDIP.

المواصفات الرئيسية

عائلة المنطق 74HC (High-Speed CMOS)
Bits 8-bit shift register + 8-bit output latch
جهد الإمداد 2V to 6V
Shift Frequency 25MHz (typ at 5V)
تيار الإخراج +/-6mA per output (at 5V)
تأخير الانتشار 20ns (typ at 5V)
الحزمة 16-PDIP
درجة حرارة التشغيل -40 to +85 C

الميزات

  • 8-bit serial-in, parallel-out shift register
  • Separate output latch for glitch-free updates
  • 3-state outputs for bus interface
  • Daisy-chain serial output (QH’)
  • Direct clear (SRCLR) for register reset
  • Output enable (OE) for 3-state control

التطبيقات

  • Expanding MCU output pins
  • LED matrix and display driving
  • Serial-to-parallel data conversion
  • Daisy-chained I/O expansion

The SN74HC595N from Texas Instruments is an 8-bit shift register with output latch and 3-state outputs that converts serial data from 3 MCU pins (DATA, SRCLK, RCLK) into 8 parallel outputs. The two-stage architecture (shift register + output latch) allows new data to be shifted in while the current output remains stable, eliminating output glitches during updates. The QH’ serial output enables daisy-chaining multiple 74HC595 devices for unlimited output expansion while using only 3 MCU pins. The 3-state outputs with Output Enable (OE) allow the device to be connected to a shared bus. With 25MHz shift frequency and +/-6mA output drive at 5V, it is the most popular IC for LED matrix driving and GPIO expansion.

The 74HC595 contains two 8-bit registers: the shift register and the storage register (output latch). Serial data is clocked into the shift register on the rising edge of SRCLK. When RCLK rises, the shift register contents are copied to the storage register, which drives the Q0-Q7 outputs. This two-stage pipeline allows shifting new data without disturbing the current output. The SRCLR pin asynchronously clears the shift register. The OE pin controls the 3-state output buffers: when OE is high, all outputs are high-impedance; when low, the storage register drives the outputs. The QH’ pin outputs the last bit of the shift register, which becomes the first bit of the next daisy-chained device.

دبوس الاسم الوظيفة
1 Q1 Parallel output bit 1
2 Q2 Parallel output bit 2
3 Q3 Parallel output bit 3
4 Q4 Parallel output bit 4
5 Q5 Parallel output bit 5
6 Q6 Parallel output bit 6
7 Q7 Parallel output bit 7
8 GND أرضي
9 Q7′ Serial output (for daisy chain)
10 SRCLR Shift register clear (active low)
11 SRCLK Shift register clock input
12 RCLK Storage register clock (latch)
13 OE Output enable (active low, 3-state)
14 SER إدخال البيانات التسلسلية
15 Q0 Parallel output bit 0
16 VCC Supply voltage (2-6V)
  • Expanding MCU GPIO from 3 pins to 8+ outputs using daisy-chain shift registers
  • LED matrix and 7-segment display driving with glitch-free latch updates
  • Serial-to-parallel data conversion with 25MHz shift rate and 3-state bus
  • Home automation relay control boards with unlimited channel expansion
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ضمان الجودة

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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

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.

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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

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.

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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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