In microelectronics, a dual in-line package is an electronic component package with a rectangular housing and two parallel rows of electrical connecting pins. The package may be through-hole mounted to a printed circuit board (PCB) or inserted in a socket. The dual-inline format was invented by Don Forbes, Rex Rice and Bryant Rogers at Fairchild R&D in 1964, when the restricted number of leads available on circular transistor-style packages became a limitation in the use of integrated circuits. Increasingly complex circuits required more signal and power supply leads ; eventually microprocessors and similar complex devices required more leads than could be put on a DIP package, leading to development of higher-density chip carriers. Furthermore, square and rectangular packages made it easier to route printed-circuit traces beneath the packages.
4000-series logic ICs in 0.3" wide 14-pin plastic DIP packages (DIP-14N), also known as PDIP (Plastic DIP)
EPROM ICs in 0.6" wide ceramic DIP-40, DIP-32, DIP-28, DIP-24 packages, also known as CDIP (Ceramic DIP)
Eight-contact DIP switch with 0.3" wide 16-pin (DIP-16N) footprint
An operating prototyped circuit on a solderless breadboard incorporating four DIP ICs, a DIP LED bargraph display (upper left), and a DIP 7-segment LED display (lower left)
An integrated circuit (IC), also known as a microchip, computer chip, or simply chip, is a small electronic device made up of multiple interconnected electronic components such as transistors, resistors, and capacitors. These components are etched onto a small piece of semiconductor material, usually silicon. Integrated circuits are used in a wide range of electronic devices, including computers, smartphones, and televisions, to perform various functions such as processing and storing information. They have greatly impacted the field of electronics by enabling device miniaturization and enhanced functionality.
A microscope image of an integrated circuit die used to control LCDs. The pinouts are the dark circles surrounding the integrated circuit.
Jack Kilby's original integrated circuit. The world's first IC. Made from germanium with gold-wire interconnects.
A-to-D converter IC in a DIP
The die from an Intel 8742, an 8-bit NMOS microcontroller that includes a CPU running at 12 MHz, 128 bytes of RAM, 2048 bytes of EPROM, and I/O in the same chip