Part Datasheet Review and Verification

Thought for 7 mins 3 sec

Step 1-3: part review and datasheet scan

The part already has a datasheet URL set, so step 2 was not needed. I used the existing datasheet source and a mirrored copy to extract what was available.

Part metadata

Table

Field	Value
Part	APA102-2020
Description	RGB LED with integrated control IC, two-wire clock/data interface, cascaded pixel device
MPN	APA102-2020
Package	2020 SMD, 2.0 mm x 2.0 mm x 0.75 mm in the PDF summary
Variant noted in datasheet	APA-102-2020-256-8A
Pin count	8 pins
Datasheet	PDF
Key project properties	Manufacturer: Shenzhen LED Color Opto Electronic CO., LTD.; Designator Prefix: LED

Extracted feature summary

Table

Category	Extracted data
Interface	Two-wire serial interface: DATA and CLK
Dimming	256 grayscale levels, plus 32-level global brightness adjustment
Output type	Integrated RGB LED + driver IC
PWM	20 kHz PWM frequency
Cascade support	Yes, with clock and data forwarding
Supply	5.0 V to 5.5 V operating supply from extracted electrical table
LED current	Max LED output current listed as 18 mA in max ratings
Viewing angle	120 deg
Manufacturing notes	RoHS, compatible with automatic placement and IR reflow, JEDEC level 3 preconditioning

Absolute maximum ratings

Table

Parameter	Value
IC power supply voltage	-0.4 V to +5.5 V
Logic input voltage	-0.4 V to VDD + 0.4 V
Data signal rate	15 MHz
ESD	2000 V
Max LED output current	18 mA
Soldering temperature	260 C
Operating temperature range	-40 C to +85 C
Storage temperature range	-40 C to +105 C

Recommended operating conditions / electrical characteristics

Table

Parameter	Min	Typ	Max	Unit
Supply voltage VDD	5.0		5.5	V
Data signal rate FCLK	5			MHz
Input high voltage VIH	0.7 x VDD			V
Input low voltage VIL			0.3 x VDD	V
Clock high width TCLKH	30			ns
Clock low width TCLKL	30			ns
Data setup time TSETUP	10			ns
Data hold time THOLD	5			ns
PWM frequency FPWM		20		kHz
Static power consumption IDD		0.7		mA

Pin descriptions

The mirrored PDF OCR was imperfect, but enough data was available to reconstruct the functional pin map used by this part project.

Table

Pin	Project symbol pin	Datasheet function
1	CO	Clock output
2	VDD_1	Supply voltage
3	CI	Clock input
4	DO	Data output
5	GND_1	Ground
6	DI	Data input
7	VDD_2	Additional supply pin in 8-pin package
8	GND_2	Additional ground pin in 8-pin package

Package / mechanical data

Table

Item	Value
Body size	2.00 mm x 2.00 mm
Height	0.75 mm from PDF mirror
Tolerance	+-0.1 mm unless otherwise specified
Recommended pad layout	Present in datasheet
Reflow compatibility	Yes

Step 4: symbol and footprint cross-check Cross-check result

Table

Check	Result	Notes
Pin count	Pass	Project has 8 symbol pins and PCB pads
Pin naming	Pass	CO, CI, DO, DI, VDD_1, VDD_2, GND_1, GND_2 align with the 8-pin package concept
Pin numbering	Pass	Symbol numbering maps cleanly to the extracted function list
Functional directionality	Mostly pass	Clock/data input and output roles are represented correctly
Footprint pad count	Pass	PCB footprint exposes 8 pads matching the symbol
Footprint land pattern dimensions	Needs manual verification	Current PCB inspection exposed pad identities but not enough geometry detail to prove the land pattern matches the datasheet's recommended pad dimensions

Issues / risks flagged

Table

Severity	Issue	Why it matters
Medium	Datasheet source quality is inconsistent	The original URL partly blocked full extraction, and alternate mirrors have imperfect OCR. That increases the risk of small mechanical or ordering details being missed.
Medium	Package height conflict across sources: 0.75 mm vs 0.9 mm	This usually will not break PCB assembly, but it can matter for enclosure clearance and exact MPN matching.
High if unverified before release	Recommended pad geometry not fully confirmed against the project footprint	A wrong 2020 land pattern can cause tombstoning, poor solder fillets, skew, or assembly yield problems.
Medium	Project MPN is APA102-2020, while datasheet variant text is APA-102-2020-256-8A	Ordering ambiguity could lead to the wrong sub-variant if the manufacturer/distributor listing is not matched carefully.

Bottom line

I found no confirmed symbol pinout mismatch in the current part project.
I found no confirmed pin-count mismatch between symbol and footprint.
The main remaining risk is footprint land pattern verification and exact ordering-code ambiguity.

If you want, I can next produce a pin-by-pin validation checklist for the footprint against the datasheet mechanical drawing.

Footprint pin check

Pull review checks

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