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ULSI 387 Processors

 

MathCo DX

Package
Vcc
TCASE
68-pin ceramic PGA
5V ???
???
Core Speed 25MHz MathCo DX-25
Core Speed 33MHz MathCo No Speed
Core Speed 33MHz
MathCo DX-33
Core Speed 40MHz MathCo DX40

MathCo SX

Package
Vcc
TCASE
68—pin PLCC
5V ???
???
Core Speed 33MHz MathCo SX-33
Core Speed 40MHz MathCo SX-40

MathCo US83C87

Package
Vcc
TCASE
68-pin ceramic PGA
5V ???
???
Core Speed ??? MathCo US83C87
Core Speed 33MHz MathCo US83C87-33

MathCo US83S87

Package
Vcc
TCASE
68—pin PLCC
5V ???
???
Core Speed 25MHz MathCo US83S87-25

US83C87

Package
Vcc
TCASE
68-pin ceramic PGA
5V ???
???
Core Speed 25MHz US83C87-25
Core Speed 33MHz US83C87-33
Core Speed 40MHz
US83C87-40
Core Speed 40MHz US83C87-C-40
Core Speed 40MHz US83C87 DX-40

DX/DLC

Package
Vcc
TCASE
68-pin ceramic PGA
5V ???
???
Core Speed ??? DX/DLC
Core Speed 33MHz DX/DLC-33
Core Speed 40MHz DX/DLC-40

SX/SLC

Package
Vcc
TCASE
68—pin PLCC
5V ???
???
Core Speed 33MHz SX/SLC-33
Core Speed 40MHz SX/SLC-40