Part Audit


Review all available part information (MPN, package, pin count, description, properties). If no datasheet URL is already set, search the web for the official datasheet and update the part's Datasheet property with the URL. Then cross-check the schematic symbol, footprint, and pin descriptions against the datasheet. Summarize key specs and flag any mismatches.
I’ll audit the part metadata, find and attach the official Microchip datasheet if needed, then cross-check the symbol, footprint, and pin descriptions and document any mismatches.
I’m reading the part’s current terminals and package geometry now; next I’ll compare them against the manufacturer’s package and pin tables.
Created a project doc

Part Audit

View Document

Part Audit Result
The part is a Microchip PIC16F18446 in the extended-temperature, 20-lead PDIP ordering variant. The official datasheet is PIC16(L)F18426/46 Data Sheet DS40001985C.
Current metadata Ordering-code interpretation
  • PIC16F18446: 8-bit PIC microcontroller, 28 KB Flash family member.
  • E: extended temperature range, -40°C to +125°C.
  • /P: 20-lead, 300 mil body PDIP package.
Key specifications
  • Architecture: enhanced mid-range 8-bit PIC MCU.
  • Maximum clock: 32 MHz.
  • Operating voltage for PIC16F variant: 2.3 V to 5.5 V.
  • Program memory: 28 KB / 16K instructions.
  • RAM: 2048 bytes.
Audit complete. I attached and verified the official Microchip datasheet; the 20-pin PDIP footprint and pin-number mapping match, but pin 4’s electrical type, VSS typing, canonical MPN formatting, broad part type, and missing pin descriptions need correction.
Full specifications and findings: Part Audit.
Correct metadata and pins
Update package metadata
Inspect 3D package fit

RB5
Pin Number
12
RA4
Pin Number
3
~MCLR~/VPP/RA3
Pin Number
4
VDD
Pin Number
1
RC3
Pin Number
7
RA2
Pin Number
17
RC6
Pin Number
8
RC5
Pin Number
5
RB4
Pin Number
13
RB7
Pin Number
10
RC7
Pin Number
9
RA5
Pin Number
2
RA1/ICSPCLK
Pin Number
18
RA0/ICSPDAT
Pin Number
19
VSS
Pin Number
20
RC4
Pin Number
6
RC2
Pin Number
14
RC0
Pin Number
16
RC1
Pin Number
15
RB6
Pin Number
11

PIC16F18446-E/P