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AC6965E4

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JieLi Tech Microcontrollers (MCU/MPU/SOC), QSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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AC6965E4

JieLi Tech · Microcontrollers (MCU/MPU/SOC) · QSOP-24

AC6965E4 from JieLi Tech, in a QSOP-24. 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 PC5 bidirectional GPIO with 24/8 mA drive per Table 1-1; alternate functions include SD0 clock (A), SPI1 data out (B), IIC SDA (B), ADC channel 12, Timer1 clock input, and UART2 RXD (D).
2 PC4 bidirectional GPIO with 24/8 mA drive per Table 1-1; alternate functions include SD0 command (A), SPI0 data3 (AB), SPI1 clock (B), IIC SCL (B), ADC channel 11, Timer1 PWM output, and UART2 TXD (D).
3 USBDM bidirectional USB negative data line with 4 mA drive, internally pulled down (Table 2-5 gives 180K pull-down, 15K tolerance comment in table), also multiplexed as SPI2 data out (B), IIC SDA (A), ADC channel 14, and UART1 RXD (D).
4 USBDP bidirectional USB positive data line with 4 mA drive, internally pulled down per Table 1-1, also multiplexed as SPI2 clock (B), IIC SCL (A), ADC channel 13, and UART1 TXD (D).
5 PA4 bidirectional GPIO with 24/8 mA drive per Table 1-1; alternate functions include SD0 command (C), analog channel 0 right, PLNK data 1, UART1 RTS, ADC channel 3, Timer4 clock input, and UART2 RXA (A).
6 PA3 bidirectional GPIO with 24/8 mA drive per Table 1-1; alternate functions include SD0 data (C), analog channel 0 left, PLNK serial clock, UART1 CTS, ADC channel 2, PWM5 output, and UART2 TXA.
7 PA2 bidirectional GPIO with 24/8 mA drive per Table 1-1; alternate functions include SD0 clock (C), microphone bias output, and Timer3 capture.
8 PA1 bidirectional GPIO with 24/8 mA drive per Table 1-1; alternate functions include ADC channel 1, Timer4 PWM output, UART1 RXC, and MIC input channel.
9 PA0 bidirectional GPIO with drive strength not stated in the table row (Table 1-1 drive column blank); alternate functions include SD power supply (SDPG), ADC channel 0, CLKOUT0, and UART1 TXC.
10 DACVSS power_in DAC ground pin.
11 VCOM passive Datasheet lists this pin as VCOM with no type or function text in Table 1-1.
12 DACL output DAC left channel analog output.
13 PB7 bidirectional GPIO with 24/8 mA drive per Table 1-1; alternate functions include SD0 clock (F), analog channel 1 right, SPI2 data out (A), IIC SDA (C), ADC channel 9, Timer5 PWM output, and UART1 RXA.
14 PB6 bidirectional GPIO with 24/8 mA drive per Table 1-1; alternate functions include SD0 command (F), analog channel 1 left, SPI2 clock (A), IIC SCL (C), ADC channel 8, Timer3 clock input, and UART1 TXA.
15 PB4 bidirectional GPIO with 24/8 mA drive per Table 1-1; alternate functions include SD0 data0 (F), SPI0 data2 (A), ADC channel 7, CLKOUT1, and UART2 TXC/RXC (C).
16 LDO_IN power_in Battery charger input with high-voltage resistance per Table 2-1, rated 5.5 V maximum as LDO_IN charge input voltage; the same pin number also carries PB5 GPIO (8 mA drive) with SPI2 data input (A), PWM3, Timer1 capture, and UART0 TXC/RXC (C).
17 VBAT power_in Battery power supply input, 2.2 V to 5.5 V per Table 2-1.
18 VDDIO power_in IO power supply, nominal 3.3 V, with a range of 2.2 V to 3.6 V per the Features section.
19 PB1 bidirectional GPIO with 24/8 mA drive and default internal pull-up per Table 2-5; also serves as long-press reset, ADC channel 5, Timer2 clock input, and UART0 RXB.
20 VSSIO power_in IO ground pin.
21 FMIP input FM antenna input.
22 BT_RF passive Bluetooth RF antenna pin; the table gives no electrical type for this pin.
23 BT_SOCI input Bluetooth oscillator input.
24 BT_SOCO output Bluetooth oscillator output.

Key specifications

Parameter Value
Manufacturer JieLi Tech
Package QSOP-24
Category Embedded Processors & Controllers
Pins 24

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Ambient Temperature Tamb -20 70 °C 7
Storage temperature Tstg -65 150 °C 7
Supply Voltage VBAT 2.2 5.5 V 7
3.3V IO Input Voltage V3.3IO -0.3 V 7
Charge Input Voltage (LDO_IN) LDO_IN -0.3 5.5 V 7
LDO_IN loading current 300 mA VBAT = 4.2V 7
VBAT voltage input VBAT 2.2 3.7 5.5 V 7
Voltage output (VDVDD) VDVDD 0.9 1.2 1.25 V VBAT = 4.2V, 30mA loading 7
Charge input voltage (LDO_IN) LDO_IN 4.5 5 5.5 V 7
Charge Voltage VCharge 4.15 4.2 4.25 V 7
Charge Current ICharge 20 300 mA Charge current at fast charge mode 7
Trickle Charge Current ITrikl 20 45 70 mA VBAT<VTrikl 7
Low-Level Input Voltage VIL -0.3 V VDDIO = 3.3V 8
Low-Level Output Voltage VOL 0.33 V VDDIO = 3.3V 8
High-Level Output Voltage VOH 2.7 V VDDIO = 3.3V 8
Internal pull-up/pull-down resistor accuracy -20 20 % internal pull-up/pull-down resistance accuracy 8
DAC Output Power 11 mW 32ohm loading 8
Frequency Response 20 Hz 1KHz/0dB 10Kohm loading 8
Input Frequency 76 108 MHz 10
Usable Sensitivity 3 4 8 dBμV EMF, (S+N)/N=26dB 10
Audio Output Voltage 0 3 V Empty Load 10
Audio Frequency Response 20 Hz 10
Voltage output (VVDDIO) VVDDIO 3.3 V VBAT = 4.2V, 100mA loading 7
THD+N -75 dB 8
S/N 95 dB 8
Crosstalk -90 dB 8
S/N 90 91 dB 9
THD+N -70 dB 1KHz/-60dB 9
Crosstalk -90 dB 9

CAD (KiCad official)

  • Symbol: AC6965E4
  • Footprint: Package_SO:QSOP-24_3.9x8.7mm_P0.635mm
  • 3D model: QSOP-24 (KiCad packages3D, STEP)
  • 3D model files: ac6965e4-etched.step / ac6965e4-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ac6965e4.step / ac6965e4.glb are the bare package body.

Provenance

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

  • Datasheet: JieLi Tech datasheet (12 pp, sha256 a686bfc593f6f744, retrieved 2026-10-18, 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