Intel 80386 microprocessor family


Production parts

Intel FA80386BXSB-25
25 MHz
Intel A80386-16
16 MHz
132-pin ceramic PGA
Intel A80386DX-16 / A80386DX16
16 MHz
132-pin ceramic PGA
Intel A80386DX-16 IV
16 MHz
132-pin ceramic PGA
Intel MG8038616 (5962-8766801MXA)
16 MHz
132-pin ceramic PGA
Intel MG80386-16/B (5962-8766801XA)
16 MHz
132-pin ceramic PGA
Intel A80386-20
20 MHz
132-pin ceramic PGA

Double sigma (bug-free) verison
Intel A80386DX-20
20 MHz
132-pin ceramic PGA

Double sigma (bug-free) verison
Intel A80386DX-20 IV
20 MHz
132-pin ceramic PGA

Double sigma (bug-free) verison
Intel A80386-25
25 MHz
132-pin ceramic PGA

Double sigma (bug-free) verison
Intel A80386DX-25
25 MHz
132-pin ceramic PGA

Double sigma (bug-free) verison
Intel A80386DX-25 IV
25 MHz
132-pin ceramic PGA

Double sigma (bug-free) verison
Intel A80386DX-33 IV
33 MHz
132-pin ceramic PGA
Intel A80386EXI
168-pin ceramic PGA
Intel KU80386EX25
Embedded 386 processors from EX series were produced with at least three different steppings: A0, B1, and C1. The stepping can be easily determined visually from processor markings. The FPO line (the line below the part number) contains an extra character at the end, that identifies the stepping code: "A", "B" and "C" stand for A-stepping, "D" stands for B-stepping and "E" stands for C-stepping. Intel produced 4 different variations of 80386EX CPUs with different electrical characteristics, and these can identified from the two-letter code, located below the FPO line. "SA" corresponds to "EXSA", "TA" - "EXTB", "TB" - "EXTB" and "TC" corresponds to "EXTC".
Intel KU80386EX33
33 MHz

Stamped "Sample"
Intel FA80386EXTB25
25 MHz
Intel KU80386EXTB25
25 MHz
Intel KU80386EXTC25
25 MHz
Intel NG80386SX-16
16 MHz
100-pin plastic QFP
Intel NG80386SX-20
20 MHz
100-pin plastic QFP
Intel SnapIn 80386SX-20
386 upgrade for 286 computers
Intel NG80386SX-25
25 MHz
100-pin plastic QFP

Stamped "Sample"
Intel RAPIDCAD-1
33(?) MHz
132-pin ceramic PGA

Comments (1)

TT80386SLB-20

2009-04-25 17:44:39
Posted by: pinkie

TT80386SLB-20

80386 in TCP package.

TT80386SLB-20

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At a glance

Type:
32-bit microprocessor
Introduction:
1985
Technology (micron):
0.8 - 1.5
Frequency (MHz):
12 - 40