Intel 80186

The Intel 80186 is a successor to the 8086 and was released in 1982 at the same time as the 80286, though so far we have never seen any specimen, even prototype, with an actual 1982 Date Code. It is also a 16-bit processor and was mainly meant to reduce the number of external chips by including them directly in the 186 chip.

The Intel Processors are no longer incorporated in DIP packages from now on, and we started to see PGA CPUs, still commonly used until AMD switched to LGA with the Socket AM5 for their Zen4 processors in 2022. The 80186 notably existed in 68-pin purple ceramic CLCC (C80186), plastic PLCC (N80186) and purple ceramic PGA (A80186) packages, and was initially manufactured with a 3 ┬Ám process, incorporating 55000 transistors.

Like the 8086, there was a 80188 with a 8-bit external bus for cheaper integration.

Intel C80186-6 Intel A80186 Intel N80186 Intel N80188
  • Two CLCC C80186-6 S40052 (6 MHz). Malaysia, 1983 Week 38.
  • A PGA A80186 (8 MHz). Bottom. Malaysia, 1990 Week 46.
  • A PLCC N80186. Bottom. 1987 Week 40.
  • A PLCC N80188. Bottom. 1990 Week 33.

Intel 80C187 Coprocessor

There were no specific coprocessor for the 186 and 188 at release and the 8087 was used instead. Much later in 1987, the Intel 80C187 was released for use with an improved 186, the 80C186 released in 1985. The 80C187 is actually based on the 387SX.

Intel N80C187-16 Intel D8087
  • A PLCC N80C187-16. Bottom. 1986 Week 14.
  • A Grey Ceramic DIP D80C18712. Bottom. Malaysia, 1987 Week 21.