Intel 80186
The Intel 80186, also known as the iAPX 186, or just 186, is a microprocessor and microcontroller introduced in 1982. It was based on the Intel 8086 and, like it, had a 16-bit external data bus multiplexed with a 20-bit address bus.
An Intel A80186 processor in a gray ceramic package. | |
| General information | |
|---|---|
| Launched | January 1982 |
| Discontinued | September 28, 2007 |
| Common manufacturer(s) | |
| Performance | |
| Max. CPU clock rate | 6 MHz to 25 MHz |
| FSB speeds | 6 MHz to 25 MHz |
| Data width | 16 bits |
| Address width | 20 bits |
| Architecture and classification | |
| Application | Desktop, Embedded |
| Technology node | 3 µm to 1 µm |
| Instruction set | x86-16 |
| Physical specifications | |
| Transistors |
|
| Co-processor | 8087 and later, 80C187 (for 80C186 only) |
| Package(s) | |
| Socket(s) | |
| Products, models, variants | |
| Variant(s) | |
| History | |
| Predecessor(s) | Intel 8088 |
| Successor(s) | Intel 80386 (The 80286 was also introduced in early 1982, and thus contemporary with the 80186) |
| Support status | |
| Unsupported | |
An Intel R80C188XL20, an LCC variant of the 80188 processor. It has a ceramic heat spreader and gold plated contacts on the bottom. | |
| General information | |
|---|---|
| Launched | 1982 |
| Discontinued | September 2007 |
| Common manufacturer(s) | |
| Performance | |
| Max. CPU clock rate | 6 MHz to 40 MHz |
| Data width | 8 bits |
| Address width | 20 bits |
| Architecture and classification | |
| Technology node | 3 µm to 1 µm |
| Instruction set | x86-16 |
| Physical specifications | |
| Transistors |
|
| Cores |
|
| Co-processor | Intel 80187 |
| Package(s) | |
| Socket(s) | |
| Products, models, variants | |
| Variant(s) |
|
| History | |
| Predecessor(s) | Intel 8088 |
| Successor(s) | Intel 80386 (The 80286 was also introduced in early 1982, and thus contemporary with the 80186) |
The 80188 variant, with an 8-bit external data bus was also available; this made it less expensive to connect to peripherals. The 16-bit registers and the one megabyte address range were unchanged, however. It had a throughput of 1 million instructions per second. Intel second sourced this microprocessor to Fujitsu Limited around 1985. Both packages of Intel 80188 version were available in 68-pin PLCC and PGA in sampling at third quarter of 1985. The available 80C188EB in fully static design for the application-specific standard product using the 1-micron CHMOS IV technology. They were available in 3- and 5-Volts version with 84-lead PLCC and 80-lead EIAJ QFP version. It was also available for US$15.15 in 1,000 unit quantities.