Newhaven OLED Part Audit

flux

Audit complete against the official Newhaven datasheet: https://newhavendisplay.com/content/specs/NHD-3.12-25664UCW2.pdf. The existing Datasheet property was already populated with a verified exact-MPN mirror, so it was not changed.
  • Matches: MPN, 20 electrical pin numbers/names, 256×64 white OLED description, 89.2×44 mm outline, 2.54 mm header pitch, and mounting-hole locations.
  • Key specs: SSD1322 controller, 3.3 V typical supply, 310 mA typical/340 mA max with all pixels on, 6800/8080 parallel plus 3-/4-wire serial, −40°C to +85°C operation.
  • Mismatches/risks: all pin types are Unspecified; pin descriptions and serial-mode alternate functions are absent; four mounting holes are modeled as plated electrical pins 21–24; the part therefore advertises 24 rather than 20 electrical pins; header drills are 1.2 mm versus approximately 1.0 mm in the latest drawing; “Graphic LCD” should be “Graphic OLED.”
  • Assessment: usable only after reviewing mounting hardware and pin-1 orientation; not recommended for production/ERC use as-is.
I filed an internal part-quality report covering these issues.
C

cherepanyadima

Fix the remaining audit issues using the official Newhaven datasheet, including pin types/descriptions, mounting-hole modeling, header drill size, and OLED classification.

flux

The datasheet confirms the 20-pin electrical interface and 1.0 mm connector drills. I’m now converting the four chassis holes from electrical terminals/pads into standalone non-plated mounting holes and correcting the symbol metadata.

flux

Implemented and verified the part corrections:
  • Reduced the symbol from 24 to 20 electrical pins; mounting holes are now separate mechanical mount nodes.
  • Added datasheet-derived pin types, descriptions, functional groups, and ordering.
  • Changed all 20 header drills from 1.2 mm to 1.0 mm.
  • Updated the description to classify it as a 3.12-inch 256×64 white graphic OLED, with SSD1322 and parallel/SPI interfaces.
  • Confirmed no electrical pins remain Unspecified and no matching review errors are reported.
The mounting holes retain the original 2.7 mm drill geometry and locations, but no longer appear as electrical symbol terminals.
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Files

Pins

Symbol

Layout

3D View

VDD
Pin Number
2
VSS
Pin Number
1
D/C
Pin Number
4
NC_OR_BC_VDD
Pin Number
3
Name
Pin #
Type
Section
Pin Group
Orientation
Order
Sub-symbol
Pin Description
VSS
1
Ground
Power
1
Logic and power ground
VDD
2
Power In
Power
2
3.3 V logic supply
NC_OR_BC_VDD
3
Power Out
Power
3
Booster capacitor supply output
D/C
4
Input
Control Bus
1
Data or command select
R/W_OR_~WR
5
Input
Control Bus
2
Read/write or write strobe
E_OR_~RD
6
Input
Control Bus
3
Enable or read strobe
DB0
7
Bi-Directional
Data Bus
1
Data bit 0 or serial clock
DB1
8
Bi-Directional
Data Bus
2
Data bit 1 or serial data
DB2
9
Bi-Directional
Data Bus
3
Parallel data bit 2
DB3
10
Bi-Directional
Data Bus
4
Parallel data bit 3
DB4
11
Bi-Directional
Data Bus
5
Parallel data bit 4
DB5
12
Bi-Directional
Data Bus
6
Parallel data bit 5
DB6
13
Bi-Directional
Data Bus
7
Parallel data bit 6
DB7
14
Bi-Directional
Data Bus
8
Parallel data bit 7
NC_OR_VCC
15
Power Out
Power
4
OLED panel supply output
~RES
16
Input
Control Bus
4
Active-low hardware reset
~CS
17
Input
Control Bus
5
Active-low chip select
NC_OR_G_VDD
18
Power Out
Power
5
Internal regulator output
BS1
19
Input
Boot
1
Interface mode select 1
BS0
20
Input
Boot
2
Interface mode select 0

NHD-3.12-25664UCW2