Difference between revisions of "DEC part number"
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| − | '''DEC part numbers''' are generally of the form ' | + | '''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'. . |
| + | |||
| + | This table lists the major class codes: | ||
{| class="wikitable" | {| class="wikitable" | ||
! Class !! Type | ! Class !! Type | ||
|- | |- | ||
| − | | | + | | 10 || [[Capacitor]]s |
| + | |- | ||
| + | | 11 || [[Diode]]s | ||
| + | |- | ||
| + | | 12 || 'DEC purchased vendor items' ([[connector]]s, [[connector|pins]], bearings, belts, fans, etc) | ||
| + | |- | ||
| + | | 13 || [[Resistor]]s | ||
| + | |- | ||
| + | | 15 || [[Transistor]]s | ||
| + | |- | ||
| + | | 16 || [[Transformer]]s and [[inductor]]s | ||
| + | |- | ||
| + | | 17 || [[Fiber-optic]] components | ||
|- | |- | ||
| − | | | + | | 18 || [[Crystal]]s and other oscillators |
|- | |- | ||
| − | | 23 || | + | | 19 || [[Bipolar]] [[integrated circuit]]s |
| + | |- | ||
| + | | 21 || [[Metal Oxide Semiconductor|MOS]] chips ([[Central Processing Unit|CPUs]], etc | ||
| + | |- | ||
| + | | 23 || Fixed memory chips ([[Read-only memory|ROMs]], etc) | ||
| + | |- | ||
| + | | 30 || [[Core memory]] stacks, major components | ||
| + | |- | ||
| + | | 36 || [[Paper tape]], [[punched card]]s, labels | ||
|- | |- | ||
| 50 || [[Printed circuit board]]s | | 50 || [[Printed circuit board]]s | ||
|- | |- | ||
| − | | 54 || Assemblies | + | | 52 || Pulse transformers |
| + | |- | ||
| + | | 54 || Assemblies (circuit cards, [[DEC indicator panel|display panels]], etc) | ||
| + | |- | ||
| + | | 70 || Cables/[[harness]]es | ||
| + | |- | ||
| + | | 74 || 'Manufactured non-electrical parts' (includes decals, etc) | ||
| + | |- | ||
| + | | 90 || Fastener hardware (nuts, bolts, screws, washers, ties etc) | ||
|- | |- | ||
| − | | | + | | 91 || Hook up wire and tubing |
|} | |} | ||
| Line 23: | Line 53: | ||
==External links== | ==External links== | ||
| + | * [https://manx-docs.org/collections/antonio/dec/standards/el-00012-00-0000.pdf DEC STD 012-0 Part Identfication Standard] | ||
| + | * [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 |
