Part Datasheet Review

Worked for 2 mins 43 sec

I reviewed the part against the Microchip datasheet already set on the project; no Datasheet URL update was needed. Main findings: pins 1–48 match the datasheet, but the project has extra terminals 49–53 likely representing exposed/corner pads, all terminal Pin Type values are still Unspecified, and package/voltage/temperature properties are missing. Full analysis is in the Part Datasheet Review — dsPIC33CK256MP205-I/M4 project file.

Thought

adrian95

Looking at the datasheet of this component, can you group together pins by their functions? for example for Power, VDD, VSS for gnd etc NOTE: If you group them, can you not add the same pin if you already added them in a group? You should know which pin function is common for its function

Worked for 2 mins 19 sec

flux

I grouped the dsPIC33CK256MP205-I/M4 pins by function with each pin assigned to exactly one group: Power, Ground, Reset/Control, Clock, Programming/Debug, Analog, Communication, and PWM. Full grouping table and suggested Flux Pin Group / Pin Type values are in the Pin Function Groups — dsPIC33CK256MP205-I/M4 project file.

Fix symbol pins

Run ERC check

Document ambiguities

Show critical groups

Thought

Refine this doc

Ask about this doc

Part Datasheet Review — dsPIC33CK256MP205-I/M4

Scope

Reviewed available project/part information against the official Microchip datasheet URL already set on the project. The review followed the part-project datasheet-sync rule that pin numbers and pin count must come from the datasheet as the single source of truth, and exposed/thermal pads must be considered when listed.

Datasheet URL status

Project Datasheet URL: http://www.microchip.com/mymicrochip/filehandler.aspx?ddocname=en606233
Action taken: No web search or Datasheet property update was needed because the project already has a Datasheet URL.

Key datasheet specs extracted

Table

Item	Datasheet value
Exact ordering code	`dsPIC33CK256MP205-I/M4`
Manufacturer	Microchip Technology
Function	16-bit dsPIC33CK digital signal controller / microcontroller
Program Flash	256 KB
Data RAM	24 KB
CPU speed	100 MHz / up to 100 MIPS
Operating voltage	3.0 V to 3.6 V
Operating temperature	-40°C to +85°C industrial
Package code	`M4`
Package	48-UQFN / 48-UFQFN exposed pad, 6 mm × 6 mm body
Pin count	48 perimeter pins, plus exposed center pad/corner anchor pad guidance
Pitch	0.40 mm BSC
Exposed pad	4.6 mm × 4.6 mm nominal; datasheet says center pad may be floating or connected to VSS, and four corner anchor pads are internally connected to the large bottom pad and must connect to the same net as it

Current project metadata review

Table

Field	Current project value	Datasheet check	Status
Manufacturer Part Number	`dsPIC33CK256MP205-I/M4`	Matches ordering code, except case-only difference from some distributor rendering	OK
Manufacturer Name	`Microchip`	Datasheet/distributor naming is Microchip / Microchip Technology	OK
Part Type	`Integrated Circuits`	More specifically a 16-bit dsPIC DSC / microcontroller	Acceptable, but could be more specific
Designator Prefix	`IC`	IC/MCU prefix is acceptable	OK
Datasheet URL	Microchip URL present	Official Microchip URL is present	OK
Package or Case Code	Not present in project properties	Datasheet package is `48-UQFN (6x6), M4, exposed pad`	Missing property
Operating Voltage	Not present	3.0 V to 3.6 V; if using Flux numeric field, use max recommended operating voltage `3.6 V`	Missing property
Operating Temperature	Not present	-40°C to +85°C	Missing property

Schematic symbol / terminal audit

Current schematic contains 53 terminal components, all using the Terminal part. The datasheet lists 48 perimeter pins, plus exposed-center-pad/corner-anchor guidance.

Pin-number comparison

Pins 1–48: Present in the schematic and the terminal labels match the datasheet pin names, including ~MCLR for datasheet MCLR.
Extra schematic terminals: VSS_4 through VSS_8 with pin numbers 49, 50, 51, 52, 53.
Datasheet issue: The M4 package does not list normal electrical pins numbered 49–53. It lists a large exposed center pad and four corner anchor pads, but describes them as pads tied internally together and requiring the same net if connected, not as named numbered VSS pins in the main 48-pin table.

Terminal property completeness

Every terminal I inspected has:

Part Type = Terminal
Pin Number set
Pin Type = Unspecified
Symbol Pin Position set

But the terminals are missing datasheet-derived properties expected for a complete IC-style part:

Pin Type should be classified: VDD/AVDD = Power In; VSS/AVSS/exposed pad = Ground; MCLR = Input; GPIO/analog/remappable pins = generally Bi-Directional or Passive/Unspecified depending final convention.
Pin Description is missing for every pin.
Section, Pin Group, Pin Orientation, and Sub-symbol Designator Suffix are missing. For IC-style parts, the sync guidance expects these fields to be populated; power pins should be top, ground pins bottom, and GPIO/multi-function pins generally left.

Footprint audit

Current layout includes a default footprint with pads for the schematic terminals and assets include:

dsPIC33CK256MP205IM4.kicad_mod marked as footprint
dsPIC33CK256MP205-I_M4.stp marked as 3D model
symbol SVG marked as default/thumbnail

Footprint vs datasheet

The footprint appears to contain pads matching the 53 terminal designators, including VSS_4–VSS_8.

Potential mismatch: If VSS_4–VSS_8 are intended to represent the exposed center pad plus four corner anchor pads, their naming and pin-numbering should be verified against the imported KiCad footprint convention. The datasheet does not identify them as main table pins 49–53. The footprint should instead explicitly represent the exposed/corner pads according to the M4 land pattern, with all such pads tied consistently if used.

Datasheet land pattern values to verify against the footprint:

Contact pitch: 0.40 mm BSC
48 contact pads: X1 max 0.20 mm, Y1 max 0.80 mm
Center pad: X2/Y2 max 4.70 mm
Corner anchor pads: X3/Y3 max 0.90 mm
Minimum contact-to-center-pad gap G1: 0.25 mm
Minimum contact-to-contact gap G2: 0.20 mm
Thermal via: 0.33 mm nominal, 1.20 mm pitch if used; vias should be filled or tented to prevent solder loss

Datasheet pin table — M4 package

Table

Pin	Current terminal	Datasheet name/functions	Status
1	RB14	RP46 / PWM1H / RB14	OK
2	RB15	RP47 / PWM1L / RB15	OK
3	RC12	RP60 / PWM8H / RC12	OK
4	RC13	RP61 / PWM8L / RC13	OK
5	~MCLR	MCLR	OK label style; property description missing
6	RD13	ANN2 / RP77 / RD13	OK
7	RC0	AN12 / ANN0 / RP48 / RC0	OK
8	RA0	OA1OUT / AN0 / CMP1A / IBIAS0 / RA0	OK
9	RA1	OA1IN- / ANA1 / RA1	OK
10	RA2	OA1IN+ / AN9 / RA2	OK
11	RA3	DACOUT1 / AN3 / CMP1C / RA3	OK
12	RA4	OA3OUT / AN4 / CMP3B / IBIAS3 / RA4	OK
13	AVDD	AVDD	OK; should be Power In
14	AVSS	AVSS	OK; should be Ground
15	RC1	OA3IN- / AN13 / CMP1B / ISRC0 / RP49 / RC1	OK
16	RC2	OA3IN+ / AN14 / CMP2B / ISRC1 / RP50 / RC2	OK
17	RC6	AN17 / ANN1 / IBIAS1 / RP54 / RC6	OK
18	VDD_1	VDD	OK; should be Power In
19	VSS_1	VSS	OK; should be Ground
20	RC3	AN15 / CMP2A / IBIAS2 / RP51 / RC3	OK
21	RB0	OSCI / CLKI / AN5 / RP32 / RB0	OK
22	RB1	OSCO / CLKO / AN6 / RP33 / RB1	OK
23	RD10	AN18 / CMP3C / ISRC3 / RP74 / RD10	OK
24	RC7	AN16 / ISRC2 / RP55 / RC7	OK
25	RB2	OA2OUT / AN1 / AN7 / ANA0 / CMP1D / CMP2D / CMP3D / RP34 / SCL3 / INT0 / RB2	OK
26	RB3	PGD2 / OA2IN- / AN8 / RP35 / RB3	OK
27	RB4	PGC2 / OA2IN+ / RP36 / RB4	OK
28	RC8	RP56 / ASDA1 / SCK2 / RC8	OK
29	RC9	RP57 / ASCL1 / SDI2 / RC9	OK
30	RD8	RP72 / SDO2 / PCI19 / RD8	OK
31	VSS_2	VSS	OK; should be Ground
32	VDD_2	VDD	OK; should be Power In
33	RB5	PGD3 / RP37 / PWM6L / SDA2 / RB5	OK
34	RB6	PGC3 / RP38 / PWM6H / SCL2 / RB6	OK
35	RB7	TDO / AN2 / CMP3A / RP39 / SDA3 / RB7	OK
36	RB8	PGD1 / AN10 / RP40 / SCL1 / RB8	OK
37	RB9	PGC1 / AN11 / RP41 / SDA1 / RB9	OK
38	RC4	RP52 / PWM5H / ASDA2 / RC4	OK
39	RC5	RP53 / PWM5L / ASCL2 / RC5	OK
40	RC10	RP58 / PWM7H / RC10	OK
41	RC11	RP59 / PWM7L / RC11	OK
42	VSS_3	VSS	OK; should be Ground
43	VDD_3	VDD	OK; should be Power In
44	RD1	RP65 / PWM4H / RD1	OK
45	RB10	TMS / RP42 / PWM3H / RB10	OK
46	RB11	TCK / RP43 / PWM3L / RB11	OK
47	RB12	TDI / RP44 / PWM2H / RB12	OK
48	RB13	RP45 / PWM2L / RB13	OK
49	VSS_4	No corresponding numbered pin in main datasheet table	Mismatch / needs verification
50	VSS_5	No corresponding numbered pin in main datasheet table	Mismatch / needs verification
51	VSS_6	No corresponding numbered pin in main datasheet table	Mismatch / needs verification
52	VSS_7	No corresponding numbered pin in main datasheet table	Mismatch / needs verification
53	VSS_8	No corresponding numbered pin in main datasheet table	Mismatch / needs verification

Main mismatches / risks

Pin count mismatch: Project has 53 terminals; datasheet main pin table has 48 pins. Extra terminals 49–53 likely correspond to exposed/corner pads, but this is not clear from names/properties.
All terminal Pin Type values are Unspecified: This reduces ERC usefulness and makes the part incomplete for schematic use.
Pin descriptions missing: Datasheet functions are not captured in Pin Description properties.
Project properties missing: Package/case, operating voltage, and operating temperature are not set.
Footprint exposed-pad representation needs verification: Datasheet requires exposed/corner pads to share the same net if connected; the current terminal naming as separate VSS pins may be acceptable only if it matches the footprint convention and net intent.

Recommended fixes

Add project properties:
- Package or Case Code = 48-UQFN (6x6), M4, exposed pad
- Operating Voltage = 3.6 V
- Operating Temperature = -40°C to +85°C
- Consider changing Part Type to a more specific value such as Microcontroller or Digital Signal Controller.
Populate terminal properties for all real pins:
- Pin Type, Pin Description, Section, Pin Group, Pin Orientation, and Sub-symbol Designator Suffix.
Decide how to represent exposed/corner anchor pads:
- If the footprint requires pads 49–53, rename/describe them clearly as exposed pad/corner anchor pads and mark them Ground or Passive with datasheet note.
- If Flux part policy requires terminal count to match only numbered package terminals, flag/remove/rework the extra terminal representation after confirming footprint pad mapping.

Scope
Datasheet URL status
Key datasheet specs extracted
Current project metadata review
Schematic symbol / terminal audit
Pin-number comparison
Terminal property completeness
Footprint audit
Footprint vs datasheet
Datasheet pin table — M4 package
Main mismatches / risks
Recommended fixes

Reviews

Documents

Part Datasheet Review — dsPIC33CK256MP205-I/M4
Pin Function Groups — dsPIC33CK256MP205-I/M4

Assets

dsPIC33CK256MP205-I_M4

dsPIC33CK256MP205-I_M4 Symbol.svgDefault

stp

dsPIC33CK256MP205-I_M4

dsPIC33CK256MP205-I_M4.stp3D Model

DSPIC33CK256MP205-IM4-thumb.png

DSPIC33CK256MP205-IM4-thumbThumbnail

kicad_mod

dsPIC33CK256MP205-I_M4

dsPIC33CK256MP205IM4.kicad_modFootprint

Project Name

dsPIC33CK256MP205-I/M4

Description

dsPIC dsPIC™ 33CK, Functional Safety (FuSa) Microcontroller IC 16-Bit 100MHz 256KB (256K x 8) FLASH 48-UQFN (6x6)

28/36/48/64/80-Pin Digital Signal Controllers with High-Resolution PWM and CAN Flexible Data (CAN FD)

Operating Conditions • 3.0V to 3.6V, -40°C to +125°C, DC to 100 MIPS • 3.0V to 3.6V, -40°C to +150°C, DC to 70 MIPS Core: 16-Bit dsPIC33CK CPU • 32-256 Kbytes of Program Flash with ECC and 8-24K RAM • Fast 6-Cycle Divide • LiveUpdate • Code Efficient (C and Assembly) Architecture • 40-Bit Wide Accumulators • Single-Cycle (MAC/MPY) with Dual Data Fetch • Single-Cycle, Mixed-Sign MUL Plus Hardware Divide • 32-Bit Multiply Support • Four Sets of Interrupt Context Saving Registers which Include Accumulator and STATUS for Fast Interrupt Handling • Zero Overhead Looping • RAM Memory Built-In Self-Test (MBIST) Clock Management • Internal Oscillator • Programmable PLLs and Oscillator Clock Sources • Reference Clock Output • Fail-Safe Clock Monitor (FSCM) • Fast Wake-up and Start-up • Backup Internal Oscillator Power Management • Low-Power Management Modes (Sleep, Idle, Doze) • Integrated Power-on Reset and Brown-out Reset High-Speed PWM • Eight PWM Pairs • Up to 250 ps PWM Resolution • Dead Time for Rising and Falling Edges • Dead-Time Compensation • Clock Chopping for High-Frequency Operation • PWM Support for:

DC/DC, AC/DC, inverters, PFC, lighting
BLDC, PMSM, ACIM, SRM motors • Fault and Current Limit Inputs • Flexible Trigger Configuration for ADC Triggering Timers/Output Compare/Input Capture • One General Purpose Timer • Peripheral Trigger Generator (PTG):
Up to 15 trigger sources to other peripheral modules
CPU independent state machine-based instruction sequencer • Nine MCCP/SCCP modules which Include Timer, Capture/Compare and PWM:
One MCCP
Eight SCCPs
16 or 32-bit time base
16 or 32-bit capture
4-deep capture buffer • Fully Asynchronous Operation, Available in Sleep Modes

#CommonPartsLibrary #IntegratedCircuit #Microcontroller #DSPIC33CK256MP

Properties

Manufac… Number

DSPIC33CK256MP205-I/M4

Manufac…er Name

Microchip

Part Type

Integrated Circuits

Datasheet URL

microchip.com/mymicrochip/filehandler.aspx?ddocname=en606233

Designator Prefix

Symbol Style

parametric-v1

Pricing & Availability

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adrian95 / dsPIC33CK256MP205-I/M4

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