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CJC6811A

Public Made by Adom

by adom

ESHINE Microcontroller Units (MCUs/MPUs/SOCs), QFN-32(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentsingle chip microcomputer-microcontrollercjc6811afactory-2.0.0extractor-text

Verified CJC6811A

by Ray · last 12 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

12 Nov 2026RayPublished by the parts factory: tier lcsc, 33 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: CJC6811A · QFN-32(5x5) · 33 pins
  • ✓copper: 33 copper pads, none touching another net
  • ✓datasheet: all 33 pin names found in the 91-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-uy71qvy1/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height within the datasheet's package drawing (datasheet p.90)
  • ✓pads: 33 pins = 33 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 33 pins agree
  • ✓symbol_text: no pin names collide
  • ✓viewers: viewers/footprint.html 39 kB, viewers/symbol.html 24 kB
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ cjc6811a.kicad_sym✓ cjc6811a.kicad_mod✓ cjc6811a.step
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CJC6811A

ESHINE · Microcontroller Units (MCUs/MPUs/SOCs) · QFN-32(5x5)

CJC6811A from ESHINE, in a QFN-32(5x5). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model). Symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 UART_TX bidirectional UART transmitter, also available as GPIO6.
2 FLS_SO bidirectional SPI data output for boot flash.
3 MCU_SPIB_SO bidirectional MCU SPI data output for boot flash (diagram label SPIB_SO).
4 MCU_SPIB_CSN bidirectional MCU SPI chip select for boot flash.
5 FLS_SI bidirectional SPI data line for boot flash; the table comment says data out, which conflicts with the pin name.
6 VDD33 power_in Power supply for IO; the IO voltage is taken from VDD33 and can range from 2.8V to 3.6V.
7 SPIB_CLK bidirectional SPI clock for boot flash (diagram label SPIB_SCK).
8 SPIB_SI bidirectional SPI data input for boot flash.
9 DVDD18 power_out 1.8V regulator output for IO, normally 2.2V as stated in the table.
10 GPIO3 bidirectional General-purpose IO GPIO3.
11 CLK_XTALa bidirectional 12MHz oscillator input, default not connected.
12 FLS_VDD33 power_in Power supply for IO on the flash interface.
13 BOOTMODE bidirectional Boot mode select, default tied to VDD33.
14 GPIO0 bidirectional General-purpose IO GPIO0, also the PWM output.
15 GPIO2 bidirectional General-purpose IO GPIO2.
16 VDD33 power_in Power supply for IO.
17 VSSIO0 power_in Ground for IO.
18 AVDD power_in Power supply for analog circuits except the headphone driver.
19 AVDD_HP power_in Power supply for the headphone analog circuits.
20 MIC_BIAS output Microphone bias output.
21 MIC_IN input Microphone input.
22 ADC_IN input ADC analog input (one channel).
23 RESETB bidirectional Chip reset, active low.
24 PGND power_in Ground for analog circuits.
25 HP_L output Left headphone output.
26 HP_VCOM output Headphone voltage reference.
27 HP_R output Right headphone output.
28 Codec_Vmid output Codec voltage reference.
29 DVDD18 power_out 1.8V regulator output for IO, normally 2.2V as stated in the table.
30 USB_DM bidirectional USB D- data line.
31 USB_DP bidirectional USB D+ data line.
32 DVDD33 power_in Power supply for the USB PHY.
33 GND/VSS power_in Digital ground; likely the exposed pad, shown as the centre ground in the diagram.

Key specifications

Parameter Value
Manufacturer ESHINE
Package QFN-32(5x5)
Category Single Chip Microcomputer/Microcontroller
Pins 33

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Digital supply range (Core) AVDD_HP 2.8 3.3 3.6 V 9
Digital supply range (Buffer) VDD33 8.8 3.3 3.6 V 9
Analogue supply range AVDD 2.8 3.3 3.6 V 9
Ground GND,PGND,VSSIO0 0 V 9
Digital supply voltage -0.3 3.6 V 8
Analogue supply voltage -0.3 3.6 V 8
Voltage range digital inputs -0.3 V VSSIO0 8
Voltage range analogue inputs -0.3 V GND 8
Operating temperature range TA -40 85 °C 8

CAD (KiCad official)

  • Symbol: CJC6811A
  • Footprint: Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm
  • 3D model: QFN-32(5x5) (KiCad packages3D, STEP)
  • 3D model files: cjc6811a-etched.step / cjc6811a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cjc6811a.step / cjc6811a.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: ESHINE datasheet (91 pp, sha256 e1df8708ea3c5f2a, retrieved 2026-11-12, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF