JY01 Part Review


Yes — the overall pin mapping and footprint look broadly plausible, but I would flag a few review issues rather than approving it cleanly.
1. Pin mapping check
Given datasheet table:

Table


PinDatasheet name/functionCurrent symbol terminalAssessment
1Brak / brake control / application setting / start torque adjustmentFO/ELLikely mismatch / needs clarification
2Is / current feedbackISOK
3Vss / 0 VGNDOK, acceptable alias
4Vdd / 5 VVDDOK
5Z/F / CW-CCW directionZ/FOK
6M / speed signal outputMOK
7AT / MA top drive outputATOK
8AB / MA bottom drive outputABOK
9BT / MB top drive outputBTOK
10BB / MB bottom drive outputBBOK
11CT / MC top drive outputCTOK
12CB / MC bottom drive outputCBOK
13Ha / Hall AHAOK
14Hb / Hall BHBOK
15Hc / Hall CHCOK
16VR / speed control inputVROK
Main issue: pin 1
The current symbol has pin 1 = FO/EL, while the JY01 V3.5 English datasheet pin table says pin 1 = Brak.
That is the largest likely mismatch.
I would not treat FO/EL as a harmless synonym unless you have another authoritative source for this exact JY01 variant showing pin 1 as FO/EL. In common BLDC-controller-board terminology, EL often means enable, and FO may mean fault output or fan output depending on context, but the JY01 datasheet pin 1 is specifically described as a brake/application/start-torque-related control pin, not as an enable/fault terminal.
Recommended symbol name for pin 1:
  • Prefer: BRAK
  • Or: BRAK / BRK
  • Or if you want to preserve alternate naming: BRAK / EL? only if supported by another source
  • Avoid approving as plain FO/EL without evidence
So for a Flux part review, I would flag pin 1 as:
“Pin 1 terminal name/function likely incorrect: symbol says FO/EL, datasheet says Brak / brake control. Please rename or justify alias.”
2. Footprint compatibility
Footprint: SOIC127P600X175-16N
This decodes approximately as:
  • SOIC/SOP
  • 1.27 mm pitch
  • 6.00 mm body width / nominal package width class
  • 1.75 mm max/nominal height
  • 16 leads
  • Gull-wing SOIC/SOP style
For a device described as SOP16, this is plausible. Many Chinese datasheets use “SOP16” generically for what CAD libraries call SOIC-16 wide-ish/narrow-ish SOP with 1.27 mm pitch.
However, I would not call it fully guaranteed unless the JY01 mechanical drawing gives matching dimensions. The key dimensions to verify are:
  • Pin pitch: likely 1.27 mm
  • Lead count: 16
  • Body width: likely around 3.9 mm or 6.0 mm depending on SOP variant terminology
  • Overall lead span: often around 6.0 mm for narrow SOIC/SOP-16, or larger for wide SOP
  • Body length: around 9.9–10.0 mm for SOIC/SOP-16
  • Height: around 1.75 mm
The footprint name SOIC127P600X175-16N suggests a standard JEDEC-style SOIC-16 narrow footprint with 1.27 mm pitch and about 6 mm overall span. If the datasheet merely says “SOP16” without a detailed package drawing, this footprint is a reasonable default, but it should be marked as plausible, not independently proven.
Review note:
“Footprint is plausible for SOP16, but confirm against manufacturer mechanical drawing if available. SOP16 can be ambiguous across suppliers.”
3. Manufacturer naming: CrossIC vs Shanghai JUYI / Juyi Tech
This also deserves a flag.
The product information appears to identify the device as JY01 by Juyi Tech / Shanghai JUYI Tech. CrossIC appears to be a distributor, catalog site, or reseller listing the part, not necessarily the silicon manufacturer.
So if the Flux part has:
  • Manufacturer: Crossic or CrossIC
that is probably not ideal. It should more likely be:
  • Manufacturer: Juyi Tech
  • Or Shanghai JUYI Tech
  • Supplier/distributor/source: CrossIC, if you want to preserve where it was found
Recommended review flag:
“Manufacturer should likely be Juyi Tech / Shanghai JUYI Tech, not CrossIC, unless CrossIC is intentionally being used as supplier rather than manufacturer.”
4. Other subtle checks
A few additional sanity checks:
Power pin naming
Datasheet uses:
  • Vdd = 5 V
  • Vss = 0 V
Symbol uses:
  • VDD
  • GND
That is acceptable. But the part properties should specify operating voltage as 4.5–5.5 V or nominal 5 V, not a motor bus voltage.
Output pin electrical type
Pins AT, AB, BT, BB, CT, CB are “drive outputs” for external power stage / gate-driver interface, not motor phase power outputs themselves. The symbol should not imply these pins directly drive the motor windings unless the JY01 is being represented as a whole controller module. For the IC, they are logic/control outputs.
Hall/sensorless description
The product page saying Hall/sensorless is consistent with the JY01 marketing/datasheet descriptions. The existence of Hall pins HA/HB/HC is not contradictory; sensorless operation likely uses application-specific configuration.
Pin 6 M
Pin 6 M as “speed signal output” is plausible. It should probably be typed as output, not input.
Pin 16 VR
Pin 16 VR is an analog speed-control input. If terminal metadata exists, it should be input/analog, with range 0–2.5 V or 0–5 V depending on configuration/application.
Conclusion
I would summarize the part review as:
Plausible with corrections required.
The 16-pin ordering from pins 2–16 matches the JY01 V3.5 datasheet well, and the SOIC127P600X175-16N footprint is a plausible SOP16 footprint. The two main things to flag are:
  1. Pin 1 mismatch: current symbol says FO/EL, while datasheet says Brak / brake control. This should be corrected or justified with a second authoritative source.
  2. Manufacturer mismatch: CrossIC is likely a catalog/distributor/source; manufacturer should likely be Juyi Tech / Shanghai JUYI Tech.
I would not reject the footprint outright, but I would mark it as needs mechanical confirmation if no package drawing is attached.
Reviewed the JY01 metadata, datasheet, symbol pins, and SOP16 footprint; I created the full report here: JY01 Part Review.
Key flags: pin 1 is likely mislabeled FO/EL vs datasheet Brak, manufacturer is likely Shanghai JUYI Tech rather than Crossic, and all pin types/descriptions are currently unspecified. The footprint is plausible for SOP16, but exact package dimensions should be confirmed if available.
Fix metadata issues
Rename pin 1
Update manufacturer
Add pin metadata
Check package drawing

IS
Pin Number
2
AT
Pin Number
7
M
Pin Number
6
BB
Pin Number
10
HB
Pin Number
14
CB
Pin Number
12
HC
Pin Number
15
VDD
Pin Number
4
HA
Pin Number
13
VR
Pin Number
16
Brak
Pin Number
1
CT
Pin Number
11
AB
Pin Number
8
Z/F
Pin Number
5
GND
Pin Number
3
BT
Pin Number
9
8 · AB10 · BB9 · BT11 · CT13 · HA15 · HC6 · M16 · VRAT · 7Brak · 1CB · 12GND · 3HB · 14IS · 2VDD · 4Z/F · 5

JY01

JY01 thumbnail