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Last update: 20 September 2004

IC number:8087
IC function:Floating-point co-processor
Related components:80287, 80387SX, 80387DX, 80486DX, 80486DX2 (successors), 8088 (main processor)

Component documentation
IC numberManufacturerDocumentation
i8087 (8087)IntelNot available

Component versions
IC numberPackageCBM part numberCBM part description
C8087, D807840-pin Ceramic DIP380201-01IC, Co-processor 8087 5 MHz

Positions
DevicePositionPackage
A1060 main boardU65 (not installed)DIP
A2088U2 (not installed)DIP
PC10 CPU boardU62 (not installed)DIP
PC10 combined boardU49 (not installed)DIP
PC10-IIIU103 (not installed)DIP
PC-1U2 (not installed)DIP

Pinout
PinTypeName
1PowerGND
2..8I/OAD14(A14)..AD8(A8)
9..16I/OAD7..AD0
17..18N/CNC
19InputCLK
20PowerGND
21InputRESET
22InputREADY
23OutputBUSY
24..25InputQS1..QS0
26..28I/OS0_..S2_
29..30N/CNC
31I/ORQ_/GT0_
32OutputINT
33I/ORQ_/GT1_
34I/OBHE/S7
35..38I/OA19/S6..A16/S3
39I/OAD15
40PowerVCC

Copyright © 2003-2004 Ronald van Dijk - All rights reserved