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1994: UMC
  week 25, 1994: UMC U5S-SUPER25
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UMC U5S-SUPER25
UMC U5S-SUPER25 Top Side
GREEN CPU
U5S-SUPER25
9425K
R33069G3
Copyright 1993 UMC
All rights reserved
Patents pending
Not for U.S. sale or import
UMC U5S-SUPER25 Back Side
Donated by Christian Lederer. Thanks a lot!  
The UMC 486 CPU does violate some of Intel's patents and was therefore not sold in the USA
 
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Core Frequency:25 MHz
Board Frequency:25 MHz
Circuit Size:0.60
Manufactured:week 25/1994
L1 Cache:8 KB
Package Type:Ceramic
PGA-168
Socket: 1/2/3
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