engineering sample samples qualification cpu processor prozessor information mhz pictures core frequency chip packaging info ic x86 museum collection amd cyrix harris ibm idt iit intel motorola nec sgs sgs-thomson siemens ST signetics mhs ti texas instruments ulsi hp umc weitek zilog 4004 4040 8008 808x 8085 8088 8086 80188 80186 80286 286 80386 386 i386 Am386 386sx 386dx 486 i486 586 486sx 486dx overdrive 80187 80287 387 487 pentium 586 5x86 386dlc 386slc 486dx2 mmx ppro pentium-pro pro athlon duron z80 sparc alpha dec dirk oppelt
home
1993: Intel
  week 15, 1993: Intel A80486SX-25
  week 21, 1993: Intel KU80486SX-25
  week 21, 1993: Intel A80487SX
  week 28, 1993: Intel Pentium A80501-60
  week 33, 1993: Intel A80486DX2-66 w/ Cooler
  week 44, 1993: Intel N80C188XL20
  week 50, 1993: Intel SB80486DX2-40
» Intel overview
» all chips made in 1993
 
Intel A80486SX-25
Intel A80486SX-25 Top Side
A80486SX-25
L3152089
SX679
INTEL (M) (c) 1989
Intel A80486SX-25 Back Side
93086693AA
MALAY
BP 315
Donated by SOFTWERK. Thanks a lot!  
add comment
Core Frequency:25 MHz
Board Frequency:25 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:1,185,000
Circuit Size:1.00
Voltage:5 V
Introduced:04/1991
Manufactured:week 15/1993
Made in:Malaysia
L1 Cache:8 KB
CPU Code:i486 SX
P23
Intel S-Spec: SX679
Package Type:Ceramic
PGA-168
Socket: 1/2/3
top of page
Intel KU80486SX-25
Intel KU80486SX-25 Top Side
KU80486SX-25
C3210347
SB5V2X SX763
INTEL(m)(c)'89'92
Intel KU80486SX-25 Back Side
Donated by Christian Lederer. Thanks a lot!  
This is an SMD package CPU mounted on a PGA board to fit into a standard desktop socket.
 
Comment by Paul Collins (pi314aussie[at]yahoo.com):
Great little sub-unit this! Overclocked it to 40MHz no probs. Used it for years and years. No heatsink needed at 40 either! Not bad for a so-called -25.
 
add comment
Core Frequency:25 MHz
Board Frequency:25 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:1,185,000
Circuit Size:1.00
Voltage:5 V
Introduced:04/1991
Manufactured:week 21/1993
L1 Cache:8 KB
CPU Code:i486 SX
P23
Intel S-Spec: SX763
Package Type:Plastic
PQFP-196 on PGA-168
Socket: 1/2/3
top of page
Intel A80487SX
Intel A80487SX Top Side
A80487SX
C3210292 B0
SZ494
INTEL (M) (c) 1989
Intel A80487SX Back Side
93151298CA
A4
AB 21
Comment by MoonKnight (moonknightus[at]yahoo.com):
Not a real co-processor. This is really just an i486DX in redesigned packaging that, when installed, would disable the onboard i486SX and take over main operation of the CPU/FPU.
 
Comment by Paul Collins (pi314aussie[at]yahoo.com):
Please note, this chip has one-more-pin than a true i486DX chip. It works as a kind of "disable the other guy" pin. This was to facilitate end-user installation, without first removing the system-manufacture's supplied CPU. ie. what end user can remove a PLCC or indeed a PQFP surface mounted chip. The A80486SX "cripple-chip" commonly came in PLCC and PQFP confugurations as often as it came in PGA! Please note, the i486SX "cripple-chip" has the same pins as the true i486DX chip, and are thus pin-for-pin, same-for-same (assuming equal clock).
 
add comment
Core Frequency:25 MHz
Board Frequency:25 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:1,185,000
Circuit Size:1.00
Introduced:04/1991
Manufactured:week 21/1993
Made in:Malaysia
L1 Cache:8 KB
CPU Code:i487 SX
Intel S-Spec: SZ494
Package Type:Ceramic
PGA-168
Socket: 1/2/3
top of page
Intel Pentium A80501-60
Intel Pentium A80501-60 Top Side A80501-60
L3281604
SX753
INTEL (M) (c) 1992
Intel Pentium A80501-60 Back Side 53160220NA
MALAY
ES 328
INTEL (M) (C) 1992
One of the earlier Pentium 60s, a B1 stepping model. These models suffered from heat troubles and where therefore enhanced with a heat spreader, a flat metal plate designed to distribute heat evenly across the processor surface, in later models of the P5. This item here had a huge cooler mounted on top (which was not easy to unmount ;-). Of course it features the infamous FDIV bug.
 
add comment
Core Frequency:60 MHz
Board Frequency:60 MHz
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:3,100,000
Circuit Size:0.80
Voltage:5 V
Introduced:March 22, 1993
Manufactured:week 28/1993
Made in:Malaysia
L1 Cache:8+8 KB
CPU Code:Pentium
P5
Intel S-Spec: SX753
Package Type:Ceramic
PGA-273
Socket: 4
top of page
Intel A80486DX2-66 w/ Cooler
Intel A80486DX2-66 w/ Cooler Top Side
i486 DX2
A80486DX2-66
C3330365
SX759
INTEL (M) (c) 1989
Intel A80486DX2-66 w/ Cooler Back Side
53220500CB
A4
CR 33
add comment
Core Frequency:66 MHz
Board Frequency:33 MHz
Clock Multiplier:2.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:1,200,000
Circuit Size:0.80
Voltage:5 V
Introduced:August 10, 1992
Manufactured:week 33/1993
L1 Cache:8 KB
CPU Code:i486 DX2
P24
Intel S-Spec: SX759
Package Type:Ceramic
PGA-168
Socket: 1/2/3
top of page
Intel N80C188XL20
Intel N80C188XL20 Top Side
N80C188XL20
L3440896B
(m)(c)1978 1982
Intel N80C188XL20 Back Side
83301200
AC FAK 44
add comment
Core Frequency:20 MHz
Board Frequency:20 MHz
Data bus (ext.):8 Bit
Address bus:20 Bit
Introduced:1983
Manufactured:week 44/1993
Package Type:Plastic
PLCC-68
top of page
Intel SB80486DX2-40
Intel SB80486DX2-40 Top Side
SB80486DX2-40
C3500582
&E3V1X SX809
INTEL (M) (c) '89 '92
Intel SB80486DX2-40 Back Side
add comment
Core Frequency:40 MHz
Board Frequency:20 MHz
Clock Multiplier:2.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:1,200,000
Circuit Size:0.80
Voltage:3.3 V
Introduced:March 3, 1992
Manufactured:week 50/1993
L1 Cache:8 KB
CPU Code:i486 DX2
P24
Intel S-Spec: SX809
Package Type:Plastic
PQFP-208
top of page