1 2 3 4 5 6 7 8 61 63 COR62 R62 0R PIU1063 PIR6201 64 PIU1064 COR63 R63 0R 65 PIR6301 PIU1065 COC37 C37 33pF PIC3701 PIC3702 66 67 PIU1067 CAM_VDDIO 68 PIU1068 129 130 131 132 133 134 GRFC2 GRFC1 SDIO1_CLK LCD_VDDIO LCD_ISINK KEYIN1 124 U_TXD1 PIU10123 HEADMIC_BIAS UART_RTS PIU10122 UART_CTS PIU10121 123 U_RXD1 122 121 CAM_RST VRTC ADC3 ADC2 FLSH_IB NC RESERVED UART_RXD RESERVED HP_DET 120 119 118 115 VRTC 117 114 116 113 1 125 PIU10124 PSM_EXT_INT 144 PIU10144 126 PIU10125 UART_TXD 98 97 96 USIM2_VDD KEYOUT4 KEYOUT0 KEYOUT1 KEYOUT5 143 PIU10143 KEYIN5 EC600U-CN HEADMIC_N ADC3 PIN52 PIN51 PIN50 PIN49 PIN48 MAIN_RI 39 MAIN_DTR 40 42 43 44 41 GND ANT_BT/WIFI_SCAN GND GND 46 47 48 49 45 GND ANT_MAIN GND MAIN_DCD 50 AP_READY WAKEUP_IN 51 52 CAM_VDDIO USB_DM 69 PIU1069 RESERVED B RESERVED +3.8V 146 PIR1801 PIU10146 RESERVED 0R 147 PIC3401 COC34 C34 PIC3501 COC35 C35 PIU10147 2 100uF 6.3VPIC3402 100uFPIC3506.3V 34 PIN34 33 PIU1033 PIN33 RESERVED PIN33 MAIN_TXD 31 MAIN_RXD PIU1031 30 EC600U-CN GND MAIN_TXD 电源部分请参考官方设计 MAIN_RXD U1B EC600U-CN 77 GND PIU1030 RESERVED PIN34 32 PIU1032 148 PIU10148 GND PIU1034 29 92 GND GND GND GND PIU1091 GND GND PIU1090 GND GND 81 PIU1081 GND GND PIU1088 GND GND PIU1087 GND GND PIU1086 GND GND PIU1085 PIU1077 78 +3.8V_1 PIU1029 PIU1078 75 76 PIU1076 24 MIC1P 23 MIC1N 22 EAR_P 21 EAR_N 20 ADC1 MIC_N PIU1023 GND SPK_P PIU1022 PWRKEY SPK_N PIU1021 RESET_N ADC1 VDD_EXT PIR8501 USIM_CLK SPI_CS SPI_TXD SPI_RXD SPI_CLK PIC40 2 COC40 C40 PIC40 1 2.2uF PIU1020 19 ADC0 PIU1019 5 3 4 2 GND 83 PIU1083 84 PIU1084 PIU1092 91 SPI_CLK_1V8 SPI_MISO_1V8 SPI_MISO_1V8 CAM_PWDN SPI_MOSI_1V8 CAM_SPI_DATA1 SPI_CS_1V8 CAM_SPI_DATA0 CAM_VDD 89 88 87 86 85 C GND ADC0 GND ADC0_IN 1K ADC1_IN PIR8202 PIR302 COR81 R81 SPI_CLK_1V8 90 PIU1089 GND PIR810 GND DBG_TXD COR86 R86 0R U_TXD3 PIR8602 PIR8601 82 PIU1082 PIR8102 PIU10 PIU102 PIU103 PIU104 PIU105 PIU106 PIU107 PIU108 PIU109 PIU10 PIU10 PIU10 2 PIU103 PIU104 PIU10 5 PIU106 PIU10 7 PIU108 1 DBG_RXD MICBIAS1 DBG_RXD 80 USB_DP 25 GND 74 PIU1080 PIU1024 CAM_VDD PIU1075 USB_DM MIC_P 79 COR3 R3 PIR301 40.2K PIR8201 PIR4702 COR82 R82 1K ADC2 ADC2_IN PIR8302 COR47 R47 PIR4701 40.2K PIR8301 PIR7402 COR83 R83 1K ADC3 ADC3_IN PIR8402 COR74 R74 PIR7401 40.2K COR84 R84 PIR8401 PIC3202 PIC3201 PIR7602 1K COR76 R76 40.2K PIR7601 PIR402 PIR4802 COR4 R4 PIR401 10K PIR7502 COR48 R48 PIR4801 10K 10K 1uF COJ8 J8 GND 1 CAM_VDD 2 CAM_VDDIO PIJ803 3 CAM_I2C_SCL PIJ804 4 CAM_I2C_SDA 5 6 CAM_SPI_CLK PIJ807 7 PIJ808 8 CAM_MCLK 9 CAM_SPI_DATA0 10 CAM_SPI_DATA1 PIJ8011 11 12 CAM_PWDN 13 PIJ8014 14 15 16 PIJ801 PIJ802 PIR702 COR75 R75 PIR7501 COC32 C32 COR24 R24 4.7K CAM_VDDIOPIR2401 PIR2402 18 PIU1074 RESET 27 PIU1027 DBG_TXD CAM_PWDN PWRKEY PIU1079 MIC_BIAS 17 73 RESERVED CAM_SPI_DATA1 72 PIU1072 VBUS PIU1025 15 71 PIU1071 28 PIU1028 26 USB_DP PIU1026 16 70 PIU1070 PIU1073 PIR4301 USB_VBUS CAM_SPI_DATA0 PIR4302 COR85 R85 0R U_RXD3 COR87 R87 0R PIR8701 VBAT_SENSE EC600U-CN LCD_SPI_CLK COR43 R43 0R PIR8801 W_DISABLE# 56 53 COU1A COU1B COU1C COU1D COU1E U1A LCD_SPI_DOUT COR18 R18 PIR1802 +3.8V_1 36 GND CAM_SPI_CLK VDD_EXT COR88 R88 0R 142 PIU10142 U1D HEADMIC_P 127 PIU1036 MAIN_RXD LCD_CS 13 PIN69 GND PIR8702 +3.8V_1 GND 37 PIU1037 LCD_SPI_RST 14 33pF PIC3902 C PIR8802 141 KEYIN4 PIU10127 PIU10126 PIU10 3 PIU10 4 PIU10 5 PIU10 6 PIU10 7 PIU10 8 PIU10 9 PIU10 2 38 GND PIU1038 VBAT_RF MAIN_CTS CAM_I2C_SDA R65 0R COR65 PIR6501 DBG_RXD TXD0 PIU10141 PIU1099 USB_ID 128 PIU10128 U1E MAIN_TXD 12 33pF DBG_TXD RXD0 99 RESERVED 140 KEYIN3 PIR6401 PIC3802 PIN70 PIR8502 PIU10140 PIU10100 KEYIN2 LCD_AVDD 145 LCD_SPI_RS CAM_I2C_SCL COC39 C39 PIC3901 100 RESERVED LCD_SEL PIU10145 LCD_TE 11 PIR6502 139 PIN40 PIN39 0R MAIN_RTS CAM_MCLK LCD_SPI_CLK PIU1066 COR64 R64 0R PIN40 PIN39 COR80 R80 PCM_CLK USIM_DET COC38 C38 PIC3801 PIR802 PIR801 35 GND PIU1035 10 PIR6302 PIR6402 GND 62 PIU1062 PIJ401 PCM_DOUT USIM_VDD LCD_SPI_CLK PIU1061 LCD_TE PIR7901 COC36 C36 33pF PIC3601 PIC3602 LCD_SPI_MOSI GND PIN61 60 USIM_RST LCD_SPI_MOSI PIU1060 COJ4 J4 GND VBAT_RF 9 GND PIN60 COJ1 J1 PCM_DIN 8 GND LCD_CS PIR6202 59 7 LCD_CS LCD_RST PIU1059 PIJ10 PCM_SYNC USIM_DATA PIR7902 GND LCD_RST COR79 R79 0R COC42 C42 33pF PIC4201 PIC4202 LCD_SPI_RS PIN59 I2C_SCL 6 LCD_SPI_RS 58 PIU1058 138 PIU10138 PIU10139 PIU1056 PIU105 PIU1054 PIU1053 PIU1052 PIU105 PIU105 PIU1049 PIU1048 PIU1047 PIU1046 PIU1045 PIU104 PIU1043 PIU1042 PIU104 PIU104 PIU1039 I2C_SDA 57 PIU1057 PIN58 137 PIU10137 ADC2 COR6 R6 4.7K B NET_MODE PIR602 54 PIR601 SLEEP_IND PIR502 NET_STATUS PIR501 SDA_1V8 4.7K 55 COR5 R5 R61 0.068R ISENSE GND GND USB_BOOT SCL_1V8 VDD_EXT SCL_1V8 SDA_1V8 101 PIU10101 PIU1093 PIU1094 PIU1095 PIU1096 PIU1097 PIU1098 95 4.7K PIR202 94 COR2 R2 93 PIR201 1 USB_BOOT PIN52 PIN51 PIN50 PIN49 PIN48 PIR4002 PIR6102 102 PIU10102 RESERVED PIR4902 RESERVED HP_R AP_26M_OUT 112 ISENSE EC600U-CN RESERVED HP_L COR40 R40 0R PIR4001 U1C AMP_VCOMP 111 PIU10111 COR49 R49 0R NET_STATUS VDRV LOUDSPK_N PIU10110 PIU10112 PIR4901 KEYOUT2 KEYOUT3 LOUDSPK_N 110 EC600U/G贴R80 EC600N/M不贴R80 PIR610 COR61 LOUDSPK_P HEADMIC_IN_DET EC600U/G贴R49 EC600N/M贴R40 +3.8V SDIO_VDD PIU1036 PIU1035 PIU1034 PIU103 PIU1032 PIU1031 PIU103 PIU1029 PIU108 PIU10 7 PIU106 PIU10 5 PIU104 PIU103 LOUDSPK_P PIU10109 109 135 136 103 U_TXD3 104 U_RXD3 105 106 107 A 108 A PIR2801 COR77 R77 PIR701 PIR2802 PIJ805 COR28 R28 4.7K GND 10K PIJ806 GND SPI_CS_1V8 GND USIM1_CLK COR72 R72 0R SPI_MOSI_1V8 GND GND GND PIQ403 PIN39 1 PIQ401 PIR7301 USIM1_DATA CAM_I2C_SDA USIM1_RST CAM_I2C_SCL PIJ8012 PIQ402 USIM1_VDD PIR3302 PIJ8013 PIR3301 COR35 R35 0R PIR3502 U_TXD1 RXD0和RXD1兼容设计 PIJ8010 COQ4 Q4 COR33 R33 0R CAM_SPI_CLK PIR7201 COR73 R73 0R PIR7302 SPI_MOSI_1V8 PIR7101 2 PIR7202 COR70 R70 0R U_RXD1 PIR7001 R71 0R COR71 SPI_MISO_1V8 PIJ8015 PIR3501 PIJ8016 GND +3.8V CAM_MCLK PIQ503 PIN40 PIQ501 1 USIM1_DET Header 16 PIC102 COC1 C1 3 TXD1 PIR7102 3 PIJ809 PIR7002 RXD1 PIC10 COQ5 Q5 EC600U/G焊R70、R73、R85、R86 1uF GND PIQ502 2 EC600N/M焊R71、R72、R87、R88 CAMERA GND D D Title Size A2 Date: File: 1 2 3 4 5 6 7 COM2 EC600X QuecPython Number Revision COM1 QUECTEL_LOGO 3-31-2023 G:\项目 \..\1.EC600S.SchDoc Sheet of Drawn By: 8 1 2 3 COC9 C9 A PIC902 GND 1 PIU201 GND 2 SW 3 PIU203 VIN COL1 L1 PIL101 PIL102 PIU202 2.2uH WPN4020H2R2MT PIC701 22uF 10V PIC702 PIJ201 PIJ202 A VCC_5V TPS563201DDCR VIN 1 2 0.1uF PIC901 COU2 U2 +3.8V COJ2 J2 4 6 VBST PIU206 5 EN 4 VFB PIU204 COR7 R7 10K PIU205 PIR702 +3.8V COR10 R10 40.2K COC7 C7 PIR1002 PIR1 01 GND B PIK102 VBUS PIK103 外部供电 PIC10 1 COC10 C10 22uF 10V PIC10 2 GND PIC1201 PIC120 PIC1302 COR11 R11 PIR1 02 COC12 C12 PIC1301 COC13 C13 0.1uF 10K 0.1uF VCC_5V 1 2 3 PIK101 VCC_5V VIN COK1 K1 PIR1001 VCC_5V 外接电源 VIN PIR701 4 5 6 PIK105 PIK106 GND COD1 D1 PIK104 PID102 VBUS USB供电 电源切换开关 B GND PID101 COR8 R8 +3.8V PIR802 GND PIR801 PID501 4.7K PID502 GND DCDC 3A COD5 D5 0 0 COUSBC1 USBC1 GND USB3.1C16PFSMT 0 0 B1 PIUSBC10B1 GND GND A12 PIUSBC10A12 COU3 U3 BL9198-33BAPRN +3.8V PIUSBC10B9 GND B12 PIUSBC10B12 VBUS VBUS CC2 SBU1 DP2 DN1 DN2 DP1 SBU2 CC1 VBUS VBUS GND GND A9 A8 A7 PIUSBC10A7 A6 PIUSBC10A6 A5 PIUSBC10A5 A4 PIUSBC10A9 VBUS 1 2 3 PIU301 PIUSBC10A8 PIUSBC10A4 A1 PIUSBC10A1 USB_DM USB_DP VBUS PIU302 USB_DM USB_DP PID401 COD4 D4 PID402 PID302 COD3 D3 PIC1402 COC14 C14 PIC1401 1uF GND COR9 R9 PIR901 PIU303 VIN GND EN VOUT NC 10K 5 PIU305 4 PIU304 PIC1502 COC15 C15 PIC1501 1uF VCC_3V3 C PIR902 GND GND 0 0 PIUSBC10 PID301 ESD9L5.0ST5G PIUSBC10B4 ESD9L5.0ST5G B4 B5 PIUSBC10B5 USB_DP B6 PIUSBC10B6 USB_DM B7 PIUSBC10B7 B8 PIUSBC10B8 VBUS B9 0 0 VBUS C VCC_3V3 GND type-C LDO 300mA D Title Size D Number Revision A4 Date: File: 1 2 3 3-31-2023 G:\项目\..\2.POWER.SchDoc Sheet of Drawn By: 4 1 2 3 4 A A VCC_3V3 PIR1401 B B COR14 R14 40.2K PIR1402 VCC_3V3 COC16 C16 GND PIC1601 PIC1602 ADC0_IN COU4 U4 PIR2 02 AHT20 1 PIU401 NC NC 0.1uF 2 PIU402 VDDGND SCL_3V3_1 PIU403 3 SCL SDA 6 5 4 SDA_3V3_1 PIU404 COR22 R22 PIU406 PIU405 GT36528 GND PIR2 01 10-20K GND 温湿度传感器 光敏电阻 C C SENSOR D Title Size D Number Revision A4 Date: File: 1 2 3 3-31-2023 Sheet of G:\项目\..\3.SENSOR+EEPROM.SchDocDrawn By: 4 1 2 3 4 A A COC2 C2 0.1uF PIC202 PIC201 COCARD1 CARD1 USIM1_VDD C1 VCC C2 PICARD10C2 RST C3 PICARD10C3 CLK GND VPP I/O CD USIM1_CLK EP EP EP EP USIM1_RST C5 C6 C7 PICARD10C7 CD PICARD10CD PICARD10C5 GND PICARD10C6 PICARD108 PICARD109 PICARD10 PICARD10 USIM1_DATA B 10 11 8 9 B GND PIR120 COR78 R78 10K VDD_EXT PIU504 PIU505 PIR7802 PIR7801 USIM1_DET 6 PIU503 5 PIU501 4 1 10K 3 USIM1_DET COR12 R12 PIR1201 SMN-303 PICARD10C1 PIU506 COU5 U5 2 PIU502 C C GND SIM卡部分请参考官方设计 USIM D Title Size D Number Revision A4 Date: File: 1 2 3 3-31-2023 G:\项目\..\4.SIM-CARD.SchDoc Sheet of Drawn By: 4 1 2 3 4 A A GND PIR2901 COR29 R29 GND PIR2902 510R VCC_3V3 PIR30 2 COC3 C3 PIC302 COC18 C18PIC1802 10pF B COMIC1 MIC1 1 PIC1801 PIC3033pF 2 PIR2502 COR30 R30 PIR30 1 0.1uF COC29 C29 COC11 C11PIC1 02 COC8 C8 PIC802 PIMIC102 1 1 PIC80110pF PIC1 033pF PIMIC101 COC31 C31PIC3102 COC20 C20PIC20 2 PIC31033pFPIC20 110pF PIR310 COR31 R31 PIR3102 1.5K PIC2902 PIC2901 MIC1N PIC3002 PIC3001 MIC1P C30 PIC1702 COC30 COC17 C17 PIC1701 2.2uF COR41 R41 0R MIC1N PIN40_3V3 0.1uF GND EAR_P EAR_P PIC501 COR27 R27 COC6 C6 EAR_N 510R MICBIAS1 10K COU10 U10 NS4160 PIR4101 EAR_N PIC601 PIC402 1uF 1 CTRL 2 Bypass 3 PIU1003 INP 4 PIU1004 INN PIU1001 PIU1002 PIC502 PIR2701 0.1uF PIC401 COC4 C4 COC5 C5 COR32 R32 PIR320 PIR4102 PIR2501 MIC1P PIR3201 GND B COR25 R25 1.5K PIR2702 10K COR26 R26 10K PIC602 PIR2601 PIC2301 COC23 C23 PIC2302 22pF VoP GND VDD VoN 8 7 6 PIU1006 5 PIU1005 PIU1008 COJ7 J7 GND PIU1007 PIJ701 PIJ702 喇叭 COC21 C21 VCC_5V PIR2602 PIC2101 1 2 PIC2102 4.7uF 0.1uF GND MICBIAS1 C C AUDIO部分请参考官方设计 AUDIO D Title Size D Number Revision A4 Date: File: 1 2 3 3-31-2023 G:\项目\..\5.AUDIO.SchDoc Sheet of Drawn By: 4 1 2 3 4 RXD2_3V3 COR21 R21 4.7K PID802 NET 0R PIR3802 PIR3801 COR39 R39 SCL_3V3_1 PIU8019 0R PIR3902 PIR3901 绿灯 3 NET_STATUS PIQ101 1 COR38 R38 SDA_3V3_1 COD8 D8 COQ1 Q1 2SK3018 N沟道 SPI_MISO_3V3 SPI_MOSI_3V3 2 PIQ102 20 PIU8020 19 VCC_3V3 PID801 PIQ103 7 8 VDD_EXT PIR2102 PIR210 6 COU8 U8 VCC_3V3 A 5 TXD2_3V3 18 PIU8018 SDA_3V3 PIU8017 SCL_3V3 16 PIU8016 SPI_CLK_3V3 PIU8015 SPI_MISO_3V3 PIU8014 SPI_MOSI_3V3 PIU8013 SPI_CS_3V3 PIU8012 17 15 14 13 12 11 GND PIU8011 B1 VCCB A1 VCCA B2 A2 1 PIU801 MAIN_RXD 2 VDD_EXT PIU802 3 PIU803 MAIN_TXD PIU804 4 SDA_1V8 5 PIU805 SCL_1V8 B3 A3 B4 A4 B5 A5 PIU806 B6 A6 PIU807 B7 A7 PIU808 B8 A8 PIU809 GND OE A MAIN_RXD 6 SPI_CLK_1V8 7 SPI_MISO_1V8 8 SPI_MOSI_1V8 9 SPI_CS_1V8 MAIN_TXD SDA_1V8 SCL_1V8 SPI_CLK_1V8 SPI_MISO_1V8 SPI_MOSI_1V8 SPI_CS_1V8 COR19 R19 10K 10 PIU8010 PIR1902 VDD_EXT PIR1901 PIR20 1 TXS0108EPWR GND PIR20 2 COU6 U6 VCC_3V3 B LCD_CS_3V3 LCD_CS_3V3 COR34 R34 4.7K PID601 PIU6019 LCD_DC_3V3 COD6 D6 LCD_RST_3V3 LCD_RST_3V3 绿灯 LCD_SDA_3V3 3 LCD_SDA_3V3 PIQ203 PIN52 PIN40_3V3 PIN40_3V3 PIN39_3V3 PIQ202 18 PIU6018 17 PIU6017 16 PIU6016 15 PIU6015 14 PIU6014 13 PIU6013 2 PWM 1 PIQ201 LCD_SCL_3V3 LCD_SCL_3V3 COQ2 Q2 MMUN2211LT3G 20 PIU6020 19 VCC_3V3 LCD_DC_3V3 PID602 COU9 U9 GND PIR3402 PIR3401 COR20 R20 100K PIN48_3V3 11 GND GND 12 PIU6012 PIU6011 B1 VCCB A1 1 PIU601 PIU602 A2 PIU603 VDD_EXT 3 LCD_SPI_RS 4 LCD_RST 5 LCD_SPI_MOSI 6 LCD_SPI_CLK 7 PIN40 8 PIN39 9 PIN48 B3 A3 B4 A4 B5 A5 PIU606 B6 A6 PIU607 B7 A7 PIU608 B8 A8 PIU609 GND OE PIU6010 PIU604 PIU605 B RXD0_3V3 LCD_CS 2 VCCA B2 LCD_CS 17 16 PIU9016 PIN60_3V3 15 PIU9015 PIN61_3V3 PIN40 14 PIU9014 RXD1_3V3 PIN39 13 PIU9013 TXD1_3V3 PIN48 COR16 R16 10K VDD_EXT PIR1601 12 PIU9012 11 GND A1 PIU9011 1 PIU901 RXD0 2 VCCA PIU902 A2 PIU903 B2 PIU9017 PIN59_3V3 LCD_SPI_CLK PIR1602 18 PIU9018 PIN58_3V3 LCD_SPI_MOSI VCCB PIU9019 TXD0_3V3 LCD_RST B1 19 VCC_3V3 LCD_SPI_RS 10 20 PIU9020 VDD_EXT 3 TXD0 4 PIN58 5 PIN59 6 PIN60 7 PIN61 8 RXD1 9 TXD1 B3 A3 B4 A4 B5 A5 PIU906 B6 A6 PIU907 B7 A7 PIU908 B8 A8 PIU909 GND OE PIU9010 PIU904 PIU905 COR36 10K R36 10 PIR3602 PIR1701 TXS0108EPWR PIR1702 COR17 R17 100K TXS0108EPWR PIR3702 GND COJ11 J11 C 1 2 PIJ1101 PIJ1102 PIR102 GND GND PIJ502 COS2 S2 COS3 S3 USB_BOOT PIS301 按键 PIS401 按键 GND PIS202 PIR5002 VDD_EXT PIR5001 COR50 R50 0R PIS302 PIR5102 COR51 R51 COS4 S4 PIN60_3V3 GND PIR5101 EC600U/G贴R50 EC600N/M贴R51 0R PIS402 COS5 S5 PIN59_3V3 PIS501 按键 PIJ501 PIN60_3V3 PIN59_3V3 PIN58_3V3 TXD0_3V3 RXD0_3V3 TXD2_3V3 RXD2_3V3 SDA_3V3 SCL_3V3 SPI_CLK_3V3 SPI_MISO_3V3 SPI_MOSI_3V3 SPI_CS_3V3 RXD1_3V3 TXD1_3V3 PIS102 按键 按键 C GND PIR101 COJ5 J5 PIS201 COR37 R37 100K 1K COS1 S1 RESET VDD_EXT PWRKEY COR1 R1 PWRKEYPIS101 PIR3601 PIR3701 GND PIS502 GND PIJ503 PIJ504 PIJ505 PIJ506 PIJ507 PIJ508 PIJ509 PIJ5010 PIJ5011 PIJ5012 PIJ5013 PIJ5014 PIJ5015 PIJ5016 PIJ5017 PIJ5018 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 COJ6 J6 VCC_5V VCC_3V3 VDD_EXT PIJ601 PIJ602 PIJ603 ADC0_IN PIJ604 ADC1_IN PIJ605 ADC2_IN PIJ606 ADC3_IN PIJ607 PIN69 PIJ608 PIN70 PIJ609 PIN40_3V3 PIJ6010 PIN39_3V3 PIJ6011 PIN61_3V3 PIJ6012 PIN48_3V3 PIJ6013 LOUDSPK_N PIJ6014 LOUDSPK_P PIJ6015 VRTC PIJ6016 GND +3.8V_1 PIJ6017 PIJ6018 Header 18 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 GPIO Header 18 D D Title Size Number Revision A3 Date: File: 1 2 3 4 5 6 3-31-2023 G:\项目\..\6.GPIO+UART.SchDoc 7 Sheet of Drawn By: 8 1 2 3 4 A A GND COJ3 J3 VCC_3V3 B PIJ301 PIJ302 LCD_SCL_3V3PIJ303 LCD_SDA_3V3 LCD_RST_3V3PIJ305 LCD_DC_3V3 PIJ306 LCD_BLK PIJ307 PIJ304 VCC_3V3 COR23 R23 PIR2301 0R PIR2302 LCD_CS_3V3 PIJ308 B 1 2 3 4 5 6 7 8 Header 8 C C COJ101 LCD CONNECT D Title Size D Number Revision A4 Date: File: 1 2 3 3-31-2023 G:\项目\..\7.LCM.SchDoc Sheet of Drawn By: 4