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1988: Intel
  week 05, 1988: Intel A80387-20
  week 11, 1988: Intel A80386-16 ΣΣ
  week 13, 1988: Intel P8088
  week 14, 1988: Intel A80386-20 ΣΣ
  week 17, 1988: Intel A80286-10
  week 18, 1988: Intel D8087-1
  week 18, 1988: Intel D80287-10
  week 20, 1988: Intel P8088-2
  week 22, 1988: Intel NG80386SX33
  week 28, 1988: Intel R80286-8
  week 30, 1988: Intel A80386DX-16 ΣΣ
  week 42, 1988: Intel NG80386SX-16, no logo
  week 51, 1988: Intel A80386DX-20 ΣΣ
» Intel overview
» all chips made in 1988
 
Intel A80387-20
Intel A80387-20 Top Side
A80387-20
I8052001 SX030
(M)(C)INTEL '86
Intel A80387-20 Back Side
37463000AA
MALAY
IF 03
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Core Frequency:20 MHz
Board Frequency:20 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Introduced:1989
Manufactured:week 05/1988
Made in:Malaysia
L1 Cache:8 KB
CPU Code:i387
Intel S-Spec: SX030
Package Type:Ceramic
PGA-68
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Intel A80386-16 ΣΣ
Intel A80386-16 ΣΣ Top Side
A80386-16
S40344
L8111117
(m)(c)i '85 '86
Sigma Sigma
Intel A80386-16 ΣΣ Back Side
373642000AA
MALAY
B 10
Some 386DX 16MHz Intel processors had a small bug which appeared as a software problem. The bug involved occurred when running true 32-bit code in a program such as within OS/2 2.x, UNIX/386, or Windows in Enhanced mode. The bug would cause the system to lock up and is a difficult issue to determine without having Intel actually look at the chip. Chips that passed the test, and all subsequent chips which were bug-free, were marked with a double-sigma symbol. 386DX chips that are not marked with these symbols may have not been tested by Intel and may be defective.
 
Comment by Grampa (webmaster[at]cpu-museum.de):
Chips having an 'IV' marking also don't have this bug.
 
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Core Frequency:16 MHz
Board Frequency:16 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:275,000
Circuit Size:1.50
Voltage:5 V
Introduced:October 17, 1985
Manufactured:week 11/1988
Made in:Malaysia
CPU Code:i386 DX
Package Type:Ceramic
PGA-132
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Intel P8088
Intel P8088 Top Side
P8088
L8130683
(c) INTEL '78 '83
Intel P8088 Back Side
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Core Frequency:5 MHz
Board Frequency:5 MHz
Data bus (ext.):8 Bit
Address bus:20 Bit
Transistors:29,000
Circuit Size:3.00
Voltage:5 V
Introduced:06/1979
Manufactured:week 13/1988
Package Type:Plastic
DIP-40
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Intel A80386-20 ΣΣ
Intel A80386-20 ΣΣ Top Side
A80386-20
S40362
L8140211
(m)(c)i '85 '86
Sigma Sigma
Intel A80386-20 ΣΣ Back Side
38041550AA
MALAY
B 812
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Core Frequency:20 MHz
Board Frequency:20 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:275,000
Circuit Size:1.50
Voltage:5 V
Introduced:February 16, 1987
Manufactured:week 14/1988
Made in:Malaysia
Package Type:Ceramic
PGA-132
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Intel A80286-10
Intel A80286-10 Top Side
A80286-10
L8170281
(m)(c)i '82 '85
Intel A80286-10 Back Side
68067082AC
MALAY
CV 814
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Core Frequency:10 MHz
Board Frequency:10 MHz
Data bus (ext.):16 Bit
Address bus:24 Bit
Transistors:134,000
Circuit Size:1.50
Voltage:5 V
Introduced:02/1982
Manufactured:week 17/1988
Made in:Malaysia
Package Type:Ceramic
PGA-68
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Intel D8087-1
Intel D8087-1 Top Side
D8087-1
L8180863
(m)(c) i '80 '84
Intel D8087-1 Back Side
38120240AA
MALAY CET816
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Core Frequency:10 MHz
Board Frequency:10 MHz
Transistors:45,000
Circuit Size:3.00
Introduced:1980
Manufactured:week 18/1988
Made in:Malaysia
Package Type:Ceramic
DIP-40
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Intel D80287-10
Intel D80287-10 Top Side
D80287-10
L8180467
(m)(c) i '80 '82
Intel D80287-10 Back Side
3811280MAA
MALAY BEV 816
Comment by Paul Collins (pi314aussie[at]yahoo.com):
Got one of these suckers out of an IBM PS/2 system model 60. Put it into 287 slot in a 286-20MHz M/Board. I learned that the main CPU socket and the 287co-pro socket run independantly of each other. Using utility software, I have found the 287 socket runs a 10MHz turbo, and 8MHz un-turbo, and that the main CPU socket runs at 20MHz turbo, and 8MHz un-turbo. I changed the clock-crystal from a 40MHz rock to a 50MHz rock, and now the main CPU runs at 25MHz, and the co-pro socket still runs at 10MHz. Good thing too, as the filched D80287-10 runs hot at its rated 10. I wouldn't like it to run any faster.
 
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Core Frequency:10 MHz
Board Frequency:10 MHz
Introduced:1980
Manufactured:week 18/1988
Made in:Malaysia
Package Type:Ceramic
DIP-40
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Intel P8088-2
Intel P8088-2 Top Side
P8088-2
L8200478
(c) INTEL '78 '83
Intel P8088-2 Back Side
48091381
AF JEB18
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Core Frequency:8 MHz
Board Frequency:8 MHz
Data bus (ext.):8 Bit
Address bus:20 Bit
Transistors:29,000
Circuit Size:3.00
Voltage:5 V
Introduced:06/1979
Manufactured:week 20/1988
Package Type:Plastic
DIP-40
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Intel NG80386SX33
Intel NG80386SX33 Top Side
NG80386SX33
L8221204E
(m) (c) '85 '87
i386 SX
Intel NG80386SX33 Back Side
9 04261S
QC CX 29
AF AL38
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Core Frequency:33 MHz
Board Frequency:33 MHz
Data bus (ext.):16 Bit
Address bus:24 Bit
Transistors:275,000
Circuit Size:1.50
Voltage:5 V
Introduced:October 26, 1992
Manufactured:week 22/1988
CPU Code:i386 SX
P9
Package Type:Plastic
PQFP-100
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Intel R80286-8
Intel R80286-8 Top Side
R80286-8
SX123
(m)(c)'82 '85
L8280941
Intel R80286-8 Back Side
37200010AB
MALAY
CS 25
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Core Frequency:8 MHz
Board Frequency:8 MHz
Data bus (ext.):16 Bit
Address bus:24 Bit
Transistors:134,000
Circuit Size:1.50
Voltage:5 V
Introduced:02/1982
Manufactured:week 28/1988
Made in:Malaysia
Package Type:Ceramic
LCC-68
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Intel A80386DX-16 ΣΣ
Intel A80386DX-16 ΣΣ Top Side
A80386DX-16
L8300401
(m)(c)i '85 '86
Sigma Sigma
Intel A80386DX-16 ΣΣ Back Side
8819666SAA
MALAY
O 827
With the 386, Intel introduced the 'DX' - 'SX' naming system. DX stands for Double-word eXternal, SX for Single-word eXternal.
This is the first processor with the DX marking.
 
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Core Frequency:16 MHz
Board Frequency:16 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:275,000
Circuit Size:1.50
Voltage:5 V
Introduced:October 17, 1985
Manufactured:week 30/1988
Made in:Malaysia
CPU Code:i386 DX
Package Type:Ceramic
PGA-132
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Intel NG80386SX-16, no logo
Intel NG80386SX-16, no logo Top Side
NG80386SX-16
I8422004
(m)(c) '85 '87
Intel NG80386SX-16, no logo Back Side
38281500
CA 840
129
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Core Frequency:16 MHz
Board Frequency:16 MHz
Data bus (ext.):16 Bit
Address bus:24 Bit
Transistors:275,000
Circuit Size:1.50
Voltage:5 V
Introduced:June 16, 1988
Manufactured:week 42/1988
CPU Code:i386 SX
P9
Package Type:Plastic
PQFP-100
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Intel A80386DX-20 ΣΣ
Intel A80386DX-20 ΣΣ Top Side
A80386DX-20
L8510683
(m)(c)I '85 '86
Sigma Sigma
Intel A80386DX-20 ΣΣ Back Side
8843562SEA
AI 48
KOREA
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Core Frequency:20 MHz
Board Frequency:20 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:275,000
Circuit Size:1.50
Voltage:5 V
Introduced:February 16, 1987
Manufactured:week 51/1988
Made in:Korea
CPU Code:i386 DX
Package Type:Ceramic
PGA-132
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