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引脚复用

功能复用

表 1. 功能复用表
引脚功能 2功能 3功能 4功能 5功能 6功能 8
PA0GPADC0IR_TXI2C0_SCLUART0_TX-CPU_NMI
PA1GPADC1IR_RXI2C0_SDAUART0_RX-DE_TE
PA2GPADC2CAN1_TXI2C1_SCLUART1_TX-UART2_CTS
PA3GPADC3CAN1_RXI2C1_SDAUART1_RX-UART2_RTS
PA4GPADC4-CAN0_TXUART2_TX--
PA5GPADC5-CAN0_RXUART2_RX--
PA8RTP_XP-I2C0_SCL---
PA9RTP_YP-I2C0_SDA---
PA10RTP_XNIR_RX---JTAG_MS
PA11RTP_YNIR_TX---JTAG_CK
PB0SPI0_WPSPI1_WP-UART0_TX--
PB1SPI0_MISOSPI1_MISO-UART2_TX--
PB2SPI0_CS0SPI1_CS-UART2_RX--
PB3SPI0_HOLDSPI1_HOLD-UART0_RX--
PB4SPI0_CLKSPI1_CLK-UART2_RTS--
PB5SPI0_MOSISPI1_MOSI-UART0_RTSUART2_CTS-
PB6SDC0_CMDSPI1_CS-UART1_TX--
PB7SDC0_CLKSPI1_MISO-UART1_RX--
PB8SDC0_D3SPI1_MOSI-UART1_RTSUART3_CTS-
PB9SDC0_D0SPI1_CLK-UART3_RTS--
PB10SDC0_D1SPI1_HOLD-UART3_TX--
PB11SDC0_D2SPI1_WP-UART3_RX--
PC0SDC1_D1-I2C0_SCLUART3_RTS-JTAG_MS
PC1SDC1_D0-----
PC2SDC1_CLK----UART0_TX
PC3SDC1_CMD-----
PC4SDC1_D3PWM0_AI2C1_SCLUART3_TX-UART0_RX
PC5SDC1_D2PWM0_BI2C1_SDAUART3_RX-JTAG_CK
PC6SDC1_DETPWM1_AI2C0_SDAUART3_CTSDE_TEIR_RX
PC7-PWM1_B---IR_TX
PD0LCD_D0CAN0_TXI2C0_SCLUART0_TX--
PD1LCD_D1CAN0_RXI2C0_SDAUART0_RX--
PD2LCD_D2CAN1_TXI2C1_SCLUART1_TX--
PD3LCD_D3CAN1_RXI2C1_SDAUART1_RX--
PD4LCD_D4-I2C1_SCLUART2_TX--
PD5LCD_D5-I2C1_SDAUART2_RX--
PD6LCD_D6-PWM0_ADSPK0--
PD7LCD_D7-PWM0_BDSPK1--
PD8LCD_D8-PWM1_A---
PD9LCD_D9-----
PD10LCD_D10-----
PD11LCD_D11-----
PD12LCD_D12-----
PD13LCD_D13-----
PD14LCD_D14-----
PD15LCD_D15-----
PD16LCD_D16-----
PD17LCD_D17-----
PD18LCD_D18-----
PD19LCD_D19-----
PD20LCD_D20-----
PD21LCD_D21-----
PD22LCD_D22-----
PD23LCD_D23-----
PD24LCD_DCLK-----
PD25LCD_HS---PWM0_B-
PD26LCD_VS---PWM1_A-
PD27LCD_DE---PWM1_B-
PE12-PWM1_B-DSPK1--
PE13-PWM0_A-DSPK0--

QFN68 封装引脚说明

表 2. QFN68 封装引脚说明
引脚定义类型功能备注说明
SYSTEM
52RESETNINPUT系统复位内置约 30 KΩ 上拉电阻和去抖滤波，不使用可直接悬空，若外挂电容建议不超过 4.7 uF。
POWER
12, 29, 54VCC33_IOPOWER芯片 IO 电压3.3 V 供电
55LDO25POWER内置 LDO 输出内部模拟模块使用，外部接 1 uF 旁路电容。
28LDO18POWER内置 LDO 输出供内部 PSRAM 使用，若使用需做好芯片散热，外部接 1 uF 旁路电容。
27, 53VDD11_SYSPOWER芯片 Core 电压1.1 V 供电，若使用内置 LDO1x，必须做好芯片散热，53 引脚为 LDO1x 输出。
69GNDPOWER-GND 铜皮全连接，需多加过孔散热。

D121 QFN68 封装功能复用表

表 3. D121 QFN68 封装功能复用表
引脚功能 1功能 2功能 3功能 4功能 5功能 6功能 8
GPIO A
56PA0GPADC0IR_TXI2C0_SCLUART0_TX-CPU_NMI
57PA1GPADC1IR_RXI2C0_SDAUART0_RX-DE_TE
58PA2GPADC2-I2C1_SCLUART1_TX--
59PA3GPADC3-I2C1_SDAUART1_RX--
60PA4GPADC4--UART2_TX--
61PA5GPADC5--UART2_RX--
62PA8RTP_XP-I2C0_SCL---
63PA9RTP_YP-I2C0_SDA---
64PA10RTP_XNIR_RX---JTAG_MS
65PA11RTP_YNIR_TX---JTAG_CK
GPIO B
40PB0SPI0_WPSPI1_WP-UART0_TX--
41PB1SPI0_MISOSPI1_MISO-UART2_TX--
42PB2SPI0_CS0SPI1_CS-UART2_RX--
43PB3SPI0_HOLDSPI1_HOLD-UART0_RX--
44PB4SPI0_CLKSPI1_CLK-UART2_RTS--
45PB5SPI0_MOSISPI1_MOSI-UART0_RTSUART2_CTS-
46PB6SDC0_CMDSPI1_CS-UART1_TX--
47PB7SDC0_CLKSPI1_MISO-UART1_RX--
48PB8SDC0_D3SPI1_MOSI-UART1_RTSUART3_CTS-
49PB9SDC0_D0SPI1_CLK-UART3_RTS--
50PB10SDC0_D1SPI1_HOLD-UART3_TX--
51PB11SDC0_D2SPI1_WP-UART3_RX--
GPIO C
66PC0SDC1_D1-I2C0_SCLUART3_RTS-JTAG_MS
67PC1SDC1_D0-----
68PC2SDC1_CLK----UART0_TX
1PC3SDC1_CMD-----
2PC4SDC1_D3PWM0_AI2C1_SCLUART3_TX-UART0_RX
3PC5SDC1_D2PWM0_BI2C1_SDAUART3_RX-JTAG_CK
4PC6SDC1_DETPWM1_AI2C0_SDAUART3_CTSDE_TEIR_RX
5PC7-PWM1_B---IR_TX
GPIO D
37PD0LCD_D0-I2C0_SCLUART0_TX--
36PD1LCD_D1-I2C0_SDAUART0_RX--
35PD2LCD_D2-I2C1_SCLUART1_TX--
34PD3LCD_D3-I2C1_SDAUART1_RX--
33PD4LCD_D4-I2C1_SCLUART2_TX--
32PD5LCD_D5-I2C1_SDAUART2_RX--
31PD6LCD_D6-PWM0_ADSPK0--
30PD7LCD_D7-PWM0_BDSPK1--
26PD8LCD_D8-PWM1_A---
25PD9LCD_D9-----
24PD10LCD_D10-----
23PD11LCD_D11-----
22PD12LCD_D12-----
21PD13LCD_D13-----
20PD14LCD_D14-----
19PD15LCD_D15-----
18PD16LCD_D16-----
17PD17LCD_D17-----
16PD18LCD_D18-----
15PD19LCD_D19-----
14PD20LCD_D20-----
13PD21LCD_D21-----
11PD22LCD_D22-----
10PD23LCD_D23-----
9PD24LCD_DCLK-----
8PD25LCD_HS---PWM0_B-
7PD26LCD_VS---PWM1_A-
6PD27LCD_DE---PWM1_B-
GPIO E
38PE12-PWM1_B-DSPK1--
39PE13-PWM0_A-DSPK0--

D123 QFN68 封装功能复用表

表 4. D123 QFN68 封装功能复用表
引脚功能 1功能 2功能 3功能 4功能 5功能 6功能 8
GPIO A
56PA0GPADC0IR_TXI2C0_SCLUART0_TX-CPU_NMI
57PA1GPADC1IR_RXI2C0_SDAUART0_RX-DE_TE
58PLL_XI------
59PLL_XO------
60PA4GPADC4-CAN0_TXUART2_TX--
61PA5GPADC5-CAN0_RXUART2_RX--
62PA8RTP_XP-I2C0_SCL---
63PA9RTP_YP-I2C0_SDA---
64PA10RTP_XNIR_RX---JTAG_MS
65PA11RTP_YNIR_TX---JTAG_CK
GPIO B
40PB0SPI0_WPSPI1_WP-UART0_TX--
41PB1SPI0_MISOSPI1_MISO-UART2_TX--
42PB2SPI0_CS0SPI1_CS-UART2_RX--
43PB3SPI0_HOLDSPI1_HOLD-UART0_RX--
44PB4SPI0_CLKSPI1_CLK-UART2_RTS--
45PB5SPI0_MOSISPI1_MOSI-UART0_RTSUART2_CTS-
46PB6SDC0_CMDSPI1_CS-UART1_TX--
47PB7SDC0_CLKSPI1_MISO-UART1_RX--
48PB8SDC0_D3SPI1_MOSI-UART1_RTSUART3_CTS-
49PB9SDC0_D0SPI1_CLK-UART3_RTS--
50PB10SDC0_D1SPI1_HOLD-UART3_TX--
51PB11SDC0_D2SPI1_WP-UART3_RX--
GPIO C
66PC0SDC1_D1-I2C0_SCLUART3_RTS-JTAG_MS
67PC1SDC1_D0-----
68PC2SDC1_CLK----UART0_TX
1PC3SDC1_CMD-----
2PC4SDC1_D3PWM0_AI2C1_SCLUART3_TX-UART0_RX
3PC5SDC1_D2PWM0_BI2C1_SDAUART3_RX-JTAG_CK
4PC6SDC1_DETPWM1_AI2C0_SDAUART3_CTSDE_TEIR_RX
5PC7-PWM1_B---IR_TX
GPIO D
37PD0LCD_D0CAN0_TXI2C0_SCLUART0_TX--
36PD1LCD_D1CAN0_RXI2C0_SDAUART0_RX--
35PD2LCD_D2CAN1_TXI2C1_SCLUART1_TX--
34PD3LCD_D3CAN1_RXI2C1_SDAUART1_RX--
33PD4LCD_D4-I2C1_SCLUART2_TX--
32PD5LCD_D5-I2C1_SDAUART2_RX--
31PD6LCD_D6-PWM0_ADSPK0--
30PD7LCD_D7-PWM0_BDSPK1--
26PD8LCD_D8-PWM1_A---
25PD9LCD_D9-----
24PD10LCD_D10-----
23PD11LCD_D11-----
22PD12LCD_D12-----
21PD13LCD_D13-----
20PD14LCD_D14-----
19PD15LCD_D15-----
18PD16LCD_D16-----
17PD17LCD_D17-----
16PD18LCD_D18-----
15PD19LCD_D19-----
14PD20LCD_D20-----
13PD21LCD_D21-----
11PD22LCD_D22-----
10PD23LCD_D23-----
9PD24LCD_DCLK-----
8PD25LCD_HS---PWM0_B-
7PD26LCD_VS---PWM1_A-
6PD27LCD_DE---PWM1_B-
GPIO E
38PE12-PWM1_B-DSPK1--
39PE13-PWM0_A-DSPK0--