Am286
Am286ZX
Developer	Intel
Manufacturer	AMD
Type	Microprocessors
Introduction	1982 (announced) 1984 (launch)
Production	1984-1995
Architecture	2nd source 80286
ISA	x86-16
µarch	80286
Word size	16 bit 2 octets 4 nibbles
Process	1.5 µm 1,500 nm 0.0015 mm
Technology	nMOS
Clock	8 MHz-20 MHz
Package	CLCC-68, PLCC-68, PGA-68, PGA-68
Succession
←	→
Am186	Am386

Am286 was a second-sourced 286 chip designed by Intel and manufactured by AMD. The Am286 was introduced into market in 1984 after Intel delivered them their designs very late, likely intentionally. These were the last designs AMD ended up receiving from Intel (later chips had to be reverse engineered instead).

History

In the early 1980s IBM renewed interest in x86 with the IBM PC being on track to be released in August 1981. However, IBM requires any chip they use to have at least one second source for a number of reasons. This in turn caused Intel to renew and expand their original 1976 agreement with AMD in 1981. Additionally, in 1982 they signed the technology exchange agreement which focused on the x86 family of processors.

In 1982 Intel released the 80286. After a rather large delay AMD received the designs from Intel and finally entered production in 1984. The Am286 was identical with every respect to Intel's 286.

Architecture

Main article: 80286 Microarchitecture

The Am286 was designed by Intel and is identical with every respect to its Intel 80486 counterparts. AMD fabricated their chips on a 1.5 µm process.

Die Shot

Die shot of an N80L286-12.

Members

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See also

• 80286