如何从Altium Designer官方网站下载元件库
画PCB没有元件库怎么办？可以查官方手册，一个引脚一个引脚画上去，生成元件库。也可以去下载Altium官方元件库。
1. AD10之前的“冷冻库”
进入 http://wiki.altium.com/display/ADOH/Download+Libraries 页面，你会看到一条提示信息：
告诉你本页面的库文件被视为 “冷冻库”，是 Altium Designer 10 发布后生成的，以后不再更新，新版本的库文件在 http://designcontent.live.altium.com/#UnifiedComponents 。
可以在这里下载所有的旧版元件库或者按厂家下载（不需要注册）
Download all Libraries:
Download all Libraries, in single ZIP file (305MB)
Individual Library Downloads - by Manufacturer:
3M (20KB)
Actel (10MB)
Agilent Technologies (0.5MB)
Allegro MicroSystems (2.6MB)
Alpha Microelectronics (30KB)
Altera (39MB)
AMCC (1MB)
AMP (3.5MB)
Amphenol (30KB)
Analog Devices (9MB)
Antenna Factor (8KB)
Antenova (9KB)
Astron Technology (19KB)
Atmel (2.4MB)
Attend (18KB)
Avago (580KB)
Bitwise Systems (875KB)
Bulgin (14KB)
Burr-Brown (4.2MB)
C&K Components (13KB)
Chin Nan Precision Electronics (8KB)
Cirrus Logic (58KB)
Cliff Electronic Components (17KB)
C-MAC MicroTechnology (22KB)
Contact Technology (11KB)
Cooper Bussman Coiltronics (82KB)
Cypress (11.5MB)
Dallas Semiconductor (1.1MB)
Device Sheets (1.3MB)
Digi International (11KB)
ECS (40KB)
Elantec (1.4MB)
EPCOS (15KB)
Fairchild Semiconductor (4MB)
Freescale Semiconductor (1.8MB)
FTDI (90KB)
Generalplus Technology (55KB)
Gennum (1.5MB)
Harris Suppression (21KB)
HARTING (780KB)
Hirose Electric (85KB)
Hitachi Semiconductor (450KB)
Holtek Semiconductor (9KB)
IL Switch (11KB)
Infineon (160KB)
Integrated Device Technology (33KB)
International Rectifier (2.8MB)
Intersil 1MB)
Johanson Technology (8KB)
KEMET Electronics (39KB)
Keystone Electronics (9KB)
King Billion Electronics (7KB)
Kingfont (9KB)
Kitagawa (12KB)
Kobiconn (14KB)
Kycon (11KB)
Lattice 33MB)
Linear Technology (2MB)
Lumberg (9KB)
Maxim (6.4MB)
Micrel (9KB)
Microchip (5.6MB)
Micron Technology (37KB)
Molex (640MB)
Morethanall (12KB)
Motorola (15MB)
National Semiconductor (7.8MB)
NEC (166KB)
Newport Components (121KB)
NXP (206KB)
Oki Semiconductor (148KB)
OMRON (11KB)
ON Semiconductor (1.7MB)
OSRAM Opto Semiconductors (9KB)
Panasonic (85KB)
PCB (9.4MB)
Philips (1MB)
Projects Unlimited (9KB)
QuickLogic (806KB)
Raltron Electronics (15KB)
Renesas Technology (4.2MB)
RF MicroDevices (162KB)
Samsung (74KB)
Samtec (12KB)
Sansen Technology (8KB)
SHARP (523KB)
Sonix Technology (5KB)
Spansion (330KB)
ST Microelectronics (46MB)
Sunplus Technology (40KB)
Sunridge Corporation (203KB)
Susumu (13KB)
Suyin Corporation (13KB)
Teccor Electronics (75KB)
Technik Industrial (15KB)
Telit Communications (13KB)
Texas Instruments (18MB)
Toshiba (13KB)
Vishay (2.6MB)
Vitesse Semiconductor (10KB)
Western Digital (1.3MB)
Wieson Technologies (11KB)
Winbond Electronics (12KB)
Xilinx (44MB)
Zarlink Semiconductor (335KB)
Zetex (215KB)
Zilog (1.7MB)
2. 统一元件库
进入 http://designcontent.live.altium.com/#UnifiedComponents 页面，你将看到各半导体公司的图标和应用方案，不知道全球多少家半导体设计公司，里面有很多个分类。
下面以意法半导体的STM32为例，讲述如何下载最新的集成库文件。
https://www.etdev.net/thread-56-1-1.html
STM32F1x系列集成库文件下载地址，免注册！
https://www.etdev.net/thread-56-1-1.html