Difference between revisions of "DEC part numbers"

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m (Jnc moved page DEC part number to DEC part numbers: Better as plural)
(Add a lot of codes)
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'''DEC part numbers''' are generally of the form 'xx-yyyyy-zz' (sometimes the first hyphen is omitted); [[Digital Equipment Corporation|DEC]] had a system for their part numbers, such that looking at a part number will generally tell you (based on the leading two-digit 'xx' field) what ''kind'' of part it is: [[integrated circuit|chip]], cable, etc.
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'''DEC part numbers''' are generally of the form 'ww-xxxxx-yy zzzz' (sometimes the first hyphen is omitted). [[Digital Equipment Corporation|DEC]] had a system for their part numbers, such that looking at a part number will generally tell you (based on the leading two-digit field, the 'class code') what ''kind'' of part it is: [[integrated circuit|chip]], cable, etc. The next field is a 'basic identifier', then comes a 'variation identifier'; the final, optional, field is the 'revision identifier'. .
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This table lists the major class codes:
  
 
{| class="wikitable"
 
{| class="wikitable"
 
! Class !! Type
 
! Class !! Type
 
|-
 
|-
| 19 || Interface chips
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| 10 || [[Capacitor]]s
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|-
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| 11 || [[Diode]]s
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|-
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| 12 || 'DEC purchased vendor items' ([[connector]]s, [[connector|pins]], bearings, belts, fans, etc)
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|-
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| 13 || [[Resistor]]s
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|-
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| 15 || [[Transistor]]s
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|-
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| 16 || [[Transformer]]s and [[inductor]]s
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|-
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| 17 || [[Fiber-optic]] components
 
|-
 
|-
| 21 || Processing chips ([[Central Processing Unit|CPUs]], etc
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| 18 || [[Crystal]]s and other oscillators                                                                     
 
|-
 
|-
| 23 || Programmed chips ([[Read-only memory|ROMs]], etc)
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| 19 || [[Bipolar]] [[integrated circuit]]s
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|-
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| 21 || [[Metal Oxide Semiconductor|MOS]] chips ([[Central Processing Unit|CPUs]], etc
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|-
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| 23 || Fixed memory chips ([[Read-only memory|ROMs]], etc)
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|-
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| 30 || [[Core memory]] stacks, major components
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|-
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| 36 || [[Paper tape]], [[punched card]]s, labels
 
|-
 
|-
 
| 50 || [[Printed circuit board]]s
 
| 50 || [[Printed circuit board]]s
 
|-
 
|-
| 54 || Assemblies
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| 52 || Pulse transformers
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|-
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| 54 || Assemblies (circuit cards, [[DEC indicator panel|display panels]], etc)
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|-
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| 70 || Cables/[[harness]]es
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|-
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| 74 || 'Manufactured non-electrical parts' (includes decals, etc)
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|-
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| 90 || Fastener hardware (nuts, bolts, screws, washers, ties etc)
 
|-
 
|-
| 70 || Cables
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| 91 || Hook up wire and tubing
 
|}
 
|}
  
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==External links==
 
==External links==
  
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* [https://manx-docs.org/collections/antonio/dec/standards/el-00012-00-0000.pdf DEC STD 012-0 Part Identfication Standard]
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* [https://manx-docs.org/collections/antonio/dec/standards/el-00012-02-0000.pdf DEC STD 012-2 Unfied Numbering Code for Part Identifier Class Codes]
 
* [https://how-to.fandom.com/wiki/How_to_identify_computer_chips_or_integrated_circuits_on_circuit_boards How to identify computer chips or integrated circuits on circuit boards]
 
* [https://how-to.fandom.com/wiki/How_to_identify_computer_chips_or_integrated_circuits_on_circuit_boards How to identify computer chips or integrated circuits on circuit boards]
  
 
[[Category: DEC Hardware]]
 
[[Category: DEC Hardware]]

Revision as of 02:47, 1 January 2021

DEC part numbers are generally of the form 'ww-xxxxx-yy zzzz' (sometimes the first hyphen is omitted). DEC had a system for their part numbers, such that looking at a part number will generally tell you (based on the leading two-digit field, the 'class code') what kind of part it is: chip, cable, etc. The next field is a 'basic identifier', then comes a 'variation identifier'; the final, optional, field is the 'revision identifier'. .

This table lists the major class codes:

Class Type
10 Capacitors
11 Diodes
12 'DEC purchased vendor items' (connectors, pins, bearings, belts, fans, etc)
13 Resistors
15 Transistors
16 Transformers and inductors
17 Fiber-optic components
18 Crystals and other oscillators
19 Bipolar integrated circuits
21 MOS chips (CPUs, etc
23 Fixed memory chips (ROMs, etc)
30 Core memory stacks, major components
36 Paper tape, punched cards, labels
50 Printed circuit boards
52 Pulse transformers
54 Assemblies (circuit cards, display panels, etc)
70 Cables/harnesses
74 'Manufactured non-electrical parts' (includes decals, etc)
90 Fastener hardware (nuts, bolts, screws, washers, ties etc)
91 Hook up wire and tubing

See also

External links