SOIC: what it means.
A small-outline integrated circuit package commonly has leads along two sides. The description concerns how a component is mounted and connected, rather than whether it is an amplifier, logic device or controller. (Texas Instruments: packaging terminology)
Package width, lead pitch and pin count vary. A similar two-sided appearance does not make an SOIC equivalent to a DIP or establish compatibility between two SOIC devices. (Texas Instruments: packaging terminology)
Put the definition to work.
The same general package name can cover different body widths and pin counts. A specific manufacturer package drawing is a better guide than a photograph.
Questions to ask next.
Use these questions as a reading checklist, not as a device-selection recommendation. Exact manufacturer documentation takes priority over a general definition.
- Exact package variant
- Width, pitch and pin count
- Drawing, orientation and pin functions
For the broader explanation, explore the complete integrated circuits guide. This page defines the term; the companion guide connects it to the rest of the system.
Common SOIC questions.
Can the same circuit be sold in several package families?
Manufacturers can offer multiple package options, as device datasheets illustrate. Verify the exact orderable part, drawing and pin assignments instead of assuming package options are identical. (Texas Instruments: packaging terminology)