Pinouts - 80287 family

80287 microprocessor - DIP 40 package

Manufacturers: Intel

	S1		1		40		Ready
	S0		2		39		CKM
	COD/INTA		3		38		HLDA
	Not connected		4		37		CLK286
	D15		5		36		PEACK
	D14		6		35		Reset
	D13		7		34		NPS1
	D12		8		33		NPS2
	VCC		9		32		CLK
	VSS		10		31		CMD1
	D11		11		30		VSS
	D10		12		29		CMD0
	Not connected		13		28		NPWR
	D9		14		27		NPRD
	D8		15		26		Error
	D7		16		25		Busy
	D6		17		24		PEREQ
	D5		18		23		D0
	D4		19		22		D1
	D3		20		21		D2

80C287 microprocessor - DIP 40 package

Manufacturers: AMD

	Not connected		1		40		Not connected
	Not connected		2		39		CKM
	Not connected		3		38		Not connected
	Not connected		4		37		Not connected
	D15		5		36		PEACK
	D14		6		35		Reset
	D13		7		34		NPS1
	D12		8		33		NPS2
	VCC		9		32		CLK
	VSS		10		31		CMD1
	D11		11		30		VSS
	D10		12		29		CMD0
	Not connected		13		28		NPWR
	D9		14		27		NPRD
	D8		15		26		Error
	D7		16		25		Busy
	D6		17		24		PEREQ
	D5		18		23		D0
	D4		19		22		D1
	D3		20		21		D2