Part Data Review and Validation

flux

I’ll inspect the part metadata, find and attach the official datasheet if needed, then cross-check symbol pins, footprint, and descriptions against it.

flux

I found no Datasheet URL set on the part. Princeton’s current site did not expose a live PT2272 PDF, so I’m using a distributor-hosted copy of the Princeton datasheet as the best available official source.

flux

Completed the PT2272M4 review and added the best available Princeton datasheet URL: https://www.mouser.com/datasheet/2/737/PT2272-2489449.pdf.
The symbol pin numbers/names match the datasheet, and the DIP-18 footprint matches the PT2272-M4 DIP package option. Main issues flagged: package property is incorrectly set to TO, pin descriptions are missing, and pin electrical types are all unspecified; details are in the project document pt2272m4-part-review.
A

adrian95

Fix the package property, pin descriptions, and electrical pin types from the datasheet.

flux

I’ll update the part/package metadata and annotate each terminal with datasheet-based pin descriptions and electrical pin types, then re-read the schematic to verify.

flux

Updated and verified the PT2272M4 part metadata: Package or Case Code is now 18-DIP.
All 18 pins now have datasheet-based Pin Description values and valid electrical Pin Type settings: A0–A7/DIN = Input, D0–D3/VT = Output, OSC1/OSC2 = Passive, VSS = Ground, VCC = Power In. No open items remain.
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Files

Pins

Symbol

Layout

3D View

Name
Pin #
Type
Section
Pin Group
Orientation
Order
Sub-symbol
Pin Description
A0
1
Input
Left
Tri-state address input A0; must match corresponding PT2262 encoder address state.
A1
2
Input
Left
Tri-state address input A1; must match corresponding PT2262 encoder address state.
A2
3
Input
Left
Tri-state address input A2; must match corresponding PT2262 encoder address state.
A3
4
Input
Left
Tri-state address input A3; must match corresponding PT2262 encoder address state.
A4
5
Input
Left
Tri-state address input A4; must match corresponding PT2262 encoder address state.
A5
6
Input
Left
Tri-state address input A5; must match corresponding PT2262 encoder address state.
A6
7
Input
Left
Tri-state address input A6; must match corresponding PT2262 encoder address state.
A7
8
Input
Left
Tri-state address input A7; must match corresponding PT2262 encoder address state.
VSS
9
Ground
Negative supply / ground pin.
D3
10
Output
Right
Momentary data output D3 for the PT2272-M4 four-data-output variant.
D2
11
Output
Right
Momentary data output D2 for the PT2272-M4 four-data-output variant.
D1
12
Output
Right
Momentary data output D1 for the PT2272-M4 four-data-output variant.
D0
13
Output
Right
Momentary data output D0 for the PT2272-M4 four-data-output variant.
DIN
14
Input
Right
Encoded serial data input from the RF/IR receiver front end.
OSC2
15
Passive
Right
Oscillator pin OSC2; connect external timing resistor between OSC1 and OSC2.
OSC1
16
Passive
Right
Oscillator pin OSC1; connect external timing resistor between OSC1 and OSC2.
VT
17
Output
Right
Valid transmission output; asserts when a valid encoded transmission is decoded.
VCC
18
Power In
Positive supply input; datasheet operating range VCC = 4 V to 15 V.

PT2272M4