IC Dictionary: Chip Pinouts

IC Dictionary is an offline IC pinout and datasheet reference for electronics engineers, students, technicians and hobbyists. Look up any chip in seconds: 2,500+ integrated circuits and electronic components with pinouts, manufacturers, absolute maximum ratings and datasheet links, plus the resistor code calculators and learning tools that go with them.

FIND AN IC PINOUT FAST
• Search by part number or name, with results as you type
• Browse 21 categories and 126 groups, from 74-series TTL and CMOS logic to op-amps, microcontrollers and Arduino boards
• Read every pinout as a zoomable figure, not a thumbnail
• Open the manufacturer's datasheet inside the app
• Check absolute maximum ratings and key specs at a glance

UNDERSTAND ANY PART NUMBER
• Part number decoder: every letter on a chip means something, and this explains each one piece by piece: manufacturer prefix, family, logic type, function and package
• Electronics glossary of 70 terms, written for people who are learning
• IC package guide: 18 package types with their pitch, pin range and the kinds of parts they appear on

RESISTOR CODE CALCULATORS
• Resistor color code calculator for 3, 4, 5 and 6 band resistors, with every band named and numbered
• SMD resistor code calculator covering all 27 keys: 3-digit, 4-digit, EIA-96 and decimal notations
• Color cues are always paired with text, so the tools work for color-blind users too

ELECTRONICS QUIZ
• 8,000+ questions drawn from the IC catalogue itself
• Beginner, intermediate and advanced levels
• Timed rounds, or practice by subject: categories, manufacturers, part numbers and packages
• A fast way to learn chip families and recognize parts on sight

BUILT FOR THE WORKBENCH
• Works offline: every IC you have opened is kept on your device, so you can use it in the lab, on site or without signal
• Full dark theme that follows your system setting
• Readable at 200% font scale, with 48dp touch targets

NO ADS. NO ACCOUNT. NO TRACKING.
No banners, no interstitials, no rewarded video and no tracking SDK. The app asks for no account and no personal data.

WHO IT IS FOR
• Electronics engineers and PCB designers checking a pinout
• Students and teachers learning digital logic and components
• Repair technicians identifying unknown chips
• Makers and Arduino hobbyists choosing parts

IC Dictionary is free. If it saves you a trip to a datasheet PDF, that is the whole idea.

Recent changes:
• 2,493 components — pinouts, manufacturers, absolute maximum ratings and datasheet links
• Search by part number, or browse 21 categories
• Part-number decoder: what every letter on a chip marking means
• Glossary of 70 terms, and a guide to 18 packages
• Resistor color code and SMD code calculators
• 8,000+ quiz questions, more levels
• Works offline
• No ads, no account, no tracking