Mermaid Diagram for @LED5/ELE9

Create a high level mermaid block diagram of @LED5/ELE9. Include key component's manufacturer part number in each block whenever possible.
I’ll inspect @LED5/ELE9 and its connected context, then produce a concise Mermaid block diagram with MPNs where available.
@LED5/ELE9 is pin 17 on the NXP MPR121QR2 capacitive touch controller; I didn’t find any external net records connected to it in the current project.

Diagram


"SCL, SDA, IRQ, ADDR" "LED5/ELE9" "Host MCU / I2C Controller<br/>MPN: not present in project" "Capacitive Touch Controller<br/>NXP MPR121QR2<br/>20-UFQFN node_3x3" "Touch Electrode or LED Channel<br/>LED5 / ELE9<br/>Pin 17" "Power Rails<br/>VDD / VSS / VREG<br/>MPN: not applicable" "External Reference Resistor<br/>REXT pin<br/>MPN: not found"
Open item: the project index shows the MPR121QR2 pin context, but no defined nets or external connected component for LED5/ELE9.
Inspect full MPR121
Check missing nets
Add electrode connection
Review symbol footprint
Create documentation file
REXT
SDA
ADDR
VSS
~IRQ
ELE3
LED3/ELE7
ELE2
VDD
ELE0
LED2/ELE6
LED6/ELE10
LED1/ELE5
LED0/ELE4
SCL
LED7/ELE11
ELE1
LED4/ELE8
LED5/ELE9
VREG

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Documents

    Documents are markdown text files which describe project goals, capture details, or even simulation outputs.

    Assets

    UQFN-20_3x3mm_P0.4mm-3D.step

    UQFN-20_3x3mm_P0.4mm-3D.step

    UQFN-20_3x3mm_P0.4mm-3D3D Model

    MPR121QR2

    defaultDefault

    UQFN-20_3x3mm_P0.4mm-Footprint_V5.kicad_mod

    UQFN-20_3x3mm_P0.4mm-Footprint_V5Footprint

    MPR121QR2

    MPR121QR2 thumbnail
    Capacitive Touch Buttons, Slider, Wheel 20-UFQFN (3x3) #commonpartslibrary #sensor #Touchsensor #integratedcircuit

    Properties

    Integrated Circuit

    NXP USA Inc.

    MPR121QR2

    U

    Pricing & Availability

    DPN

    Stock

    Qty 1

    4

    0

    $0.00

    4

    0

    $0.00

    1

    100

    $2.88162

    1

    771

    $2.6962

    1

    0

    $0.00

    8

    4K–351K

    $0.924–$1.57

    Controls