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74HC595D

8-bit serial-in/serial or parallel-out shift register with output latches and 3-state outputs in SOIC-16 package.

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Manufacturer Part：

74HC595D

Package：

SOP16

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Description

Part Number: 74HC595D
Manufacturer: TI, NXP, ON Semiconductor
Device Type: 8-bit Shift Register with Output Latch
Package: SOP-16 (Surface Mount)

Core Characteristics

– Structure: 8-bit serial-in parallel-out shift register with 3-state parallel output latch – Supply Voltage: 2.0V ~ 6.0V – High-speed CMOS logic, low power consumption – Wide operating temperature: -40°C ~ +125°C

Pin & Function Features

– Serial data input, parallel data output – Supports cascade connection to expand multiple I/O ports – Output enable pin; can disable all outputs in high-impedance state – Master reset function; clears register data quickly

Main Advantages

– Converts serial signal to parallel output, saving MCU I/O resources – High noise immunity and strong anti-interference capability – Low input current, compatible with TTL and CMOS levels – Small SOP-16 package, suitable for compact PCB layout

Typical Applications

– LED display driver, dot matrix screen control – MCU I/O port expansion – Relay and switching circuit drive – Industrial logic control, digital circuit expansion – Communication signal parallel conversion

The 74HC595D is an 8-bit serial-in/serial or parallel-out shift register with storage register and 3-state outputs from Nexperia in SOIC-16 package. It features separate shift and storage register clocks, serial input (DS) and serial output (Q7S) for cascading, asynchronous master reset (MR), and 100MHz typical shift-out frequency. Supply voltage range 2.0V to 6.0V, CMOS low power dissipation, specified from -40°C to +125°C.

Working Principle(Within 200 Words)

Pin Number Pin Name Description
1 Q1 Storage register output 1 (3-state)
2 Q2 Storage register output 2 (3-state)
3 Q3 Storage register output 3 (3-state)
4 Q4 Storage register output 4 (3-state)
5 Q5 Storage register output 5 (3-state)
6 Q6 Storage register output 6 (3-state)
7 Q7 Storage register output 7 (3-state)
8 GND Ground (0V)
9 Q7S Serial output from shift register for cascading
10 MR Master reset (active LOW); resets shift register
11 SHCP Shift register clock input (rising edge triggered)
12 STCP Storage register clock input (rising edge triggered)
13 OE Output enable (active LOW); HIGH = high-impedance outputs
14 DS Serial data input
15 Q0 Storage register output 0 (3-state)
16 VCC Positive supply voltage (2.0V to 6.0V)
Application Description
Serial-to-Parallel Conversion Expanding microcontroller output pins using only 3 control lines (DS, SHCP, STCP)
LED Matrix Driving Driving 8 or more LEDs with cascaded shift registers using minimal I/O
Seven-Segment Display Controlling multi-digit 7-segment displays with multiplexing
Remote Control Holding Register Buffering data for remote or low-speed peripheral interfaces
GPIO Expansion Adding digital outputs to microcontrollers with limited I/O pins
Industrial Control Panels Driving indicator LEDs and relay control lines in panel interface circuits
Model Manufacturer Package Key Difference
74HCT595D Nexperia SOIC-16 TTL input levels (vs. CMOS for HC version)
74HC595PW,118 Nexperia TSSOP-16 Same function, smaller TSSOP package
SN74HC595DR Texas Instruments SOIC-16 Pin-compatible TI-branded equivalent
MC74HC595ADG onsemi SOIC-16 Pin-compatible onsemi-branded equivalent
74HC164D Nexperia SOIC-14 8-bit shift register without output latches, simpler function
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All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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