component
JL6976M4
Public Made by Adomby adom
JieLi Tech Digital Signal Processors (DSP/DSC), QFN-32(4x4). Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownJL6976M4
JieLi Tech · Digital Signal Processors (DSP/DSC) · QFN-32(4x4)
JL6976M4 from JieLi Tech, in a QFN-32(4x4). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | DACVSS | power_in | Analog ground for DAC circuitry. |
| 2 | HPVDD | power_in | Headphone amplifier power supply. |
| 3 | VDDIO | power_in | IO power supply at 3.3V. |
| 4 | PB8 | bidirectional | GPIO with alternate functions including MIC1 input channel, UART0RXB receiver, and Timer4 capture. |
| 5 | PB7 | bidirectional | GPIO with alternate functions including MIC1 bias output and UART0TXB transmitter. |
| 6 | PB6 | bidirectional | GPIO with alternate functions including UART1RXA receiver, Timer2 PWM output, ADC9 input, and Touch7 input. |
| 7 | PGND | power_in | DC-DC converter ground. |
| 8 | SW | power_out | DC-DC converter switching node, connect to external inductor. |
| 9 | VBAT | power_in | Battery power supply input, 2.2V to 4.5V. |
| 10 | LDO_IN | power_in | Charge power input with alternate functions including UART0TXC/RXC and Timer3 PWM output. |
| 11 | BT_AVDD | power_in | Bluetooth analog power supply. |
| 12 | PB3 | bidirectional | GPIO with EVDD supply voltage function to peripherals. |
| 13 | PB2 | bidirectional | GPIO with alternate functions including UART2RXC receiver, SPI2DOC output, Timer5 capture, ADC7 input, and Touch channel LP_TH1. |
| 14 | PB1 | bidirectional | GPIO with internal pull-up supporting long press reset and alternate functions including SPI2CLKC clock, UART2TXC transmitter, ADC6 input, and Touch channel LP_TH0. |
| 15 | PB0 | bidirectional | GPIO supporting high voltage input with alternate functions including SPI2_DIC data input, ALNK1 Master Clock, and Timer4 clock input. |
| 16 | BT_RF | passive | Bluetooth RF antenna connection. |
| 17 | VSSIO | power_in | IO ground. |
| 18 | BT_OSCI | input | Bluetooth oscillator input for 32kHz crystal reference. |
| 19 | BT_OSCO | output | Bluetooth oscillator output for 32kHz crystal reference. |
| 20 | PC5 | bidirectional | GPIO with alternate functions including UART2RXD receiver, SPI1DOB output, Audio Link Data3, IIC_SDA interface, and ADC5 input. |
| 21 | PC4 | bidirectional | GPIO with alternate functions including UART2TXD transmitter, SPI1CLKB clock, Audio Link Data2, IIC_SCL interface, ADC4 input, and Timer4 PWM output. |
| 22 | PC3 | bidirectional | GPIO with alternate functions including UART0RXD receiver, SPI1DIB data input, Audio Link word select, IIC_SDA interface, and Timer3 clock input. |
| 23 | PC2 | bidirectional | GPIO with alternate functions including Audio Link serial clock, IIC_SCL interface, UART0TXD transmitter, and Timer1 clock input. |
| 24 | USBDM | bidirectional | USB negative data line with alternate functions including UART1RXD receiver, IIC_SDA interface, and ADC11 input. |
| 25 | USBDP | bidirectional | USB positive data line with alternate functions including UART1TXD transmitter, IIC_SCL interface, and ADC10 input. |
| 26 | PA3 | bidirectional | GPIO with alternate functions including UART2TXA transmitter, ADC0 input, Timer1 PWM output, and Touch0 input. |
| 27 | PA1 | bidirectional | GPIO with alternate functions including MIC0 input channel, Timer0 PWM output, and UART1TXC transmitter. |
| 28 | DACR | output | DAC right channel audio output. |
| 29 | DACL | output | DAC left channel audio output. |
| 30 | NC | unconnected | Not connected. |
| 31 | NC | unconnected | Not connected. |
| 32 | VCOM | power_in | DAC reference voltage. |
| 33 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | JieLi Tech |
| Package | QFN-32(4x4) |
| Category | Embedded Processors & Controllers |
| Pins | 33 |
CAD (KiCad official)
- Symbol:
JL6976M4 - Footprint:
Package_DFN_QFN:QFN-32-1EP_4x4mm_P0.4mm_EP2.9x2.9mm - 3D model: QFN-32(4x4) (KiCad packages3D, STEP)
- 3D model files:
jl6976m4-etched.step/jl6976m4-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);jl6976m4.step/jl6976m4.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: JieLi Tech datasheet (14 pp, sha256
c3e65aabfda2439a, retrieved 2026-09-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).