Arduino_MEGA2560_ref.sch Arduino Mega2560 Schematic
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Arduino Mega 2560 Reference Design TM Reference Designs ARE PROVIDED "AS IS" AND "WITH ALL FAULTS". Arduino DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, REGARDING PRODUCTS, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Arduino may make changes to specifications and product descriptions at any time, without notice. The Customer must not rely on the absence or characteristics of any features or instructions marked "reserved" or "undefined." Arduino reserves these for future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to them. The product information on the Web Site or Materials is subject to change without notice. Do not finalize a design with this information. +5V PL1 PL3 PL5 PL7 PG1 PD7 ADCH 8 7 6 5 4 3 2 1 PL7 PL6 PL5 PL4 PL3 PL2 PL1 PL0 pwm pwm pwm ADC15 ADC14 ADC13 ADC12 ADC11 ADC10 ADC9 ADC8 82 83 84 85 86 87 88 89 +5V+3V3 POWER 1 2 3 4 5 6 pwm pwm pwm pwm PH6 PH5 PH4 PH3 TXD2 RXD2 TS42 RESET 27 18 17 16 15 14 13 12 PK7(ADC15/PCINT23) PK6(ADC14/PCINT22) PK5(ADC13/PCINT21) PK4(ADC12/PCINT20) PK3(ADC11/PCINT19) PK2(ADC10/PCINT18) PK1(ADC9/PCINT17) PK0(ADC8/PCINT16) PJ7 PJ6(PCINT15) PJ5(PCINT14) PJ4(PCINT13) PJ3(PCINT12) PJ2(XCK3/PCINT11) PJ1(TXD3/PCINT10) PJ0(RXD3/PCINT9) PH7(T4) PH6(OC2B) PH5(OC4C) PH4(OC4B) PH3(OC4A) PH2(XCK2) PH1(TXD2) PH0(RXD2) (T0)PD7 (T1)PD6 (XCK1)PD5 (ICP1)PD4 (TXD1/INT3)PD3 (RXD1/INT2)PD2 (SDA/INT1)PD1 (SCL/INT0)PD0 (CLKO/ICP3/INT7)PE7 (T3/INT6)PE6 (OC3C/INT5)PE5 (OC3B/INT4)PE4 (OC3A/AIN1)PE3 (XCK0/AIN0)PE2 (TXD0)PE1 (RXD0/PCIN8)PE0 (ADC7/TDI)PF7 (ADC6/TDO)PF6 (ADC5/TMS)PF5 (ADC4/TCK)PF4 (ADC3)PF3 (ADC2)PF2 (ADC1)PF1 (ADC0)PF0 (OC0B)PG5 (TOSC1)PG4 (TOSC2)PG3 (ALE)PG2 (RD)PG1 (WR)PG0 50 49 48 47 46 45 44 43 PD7 9 8 7 6 5 4 3 2 PE1 PE0 pwm pwm pwm (TX0) (RX0) PH4 PH3 PE3 PG5 PE5 PE4 PE1 PE0 8 7 6 5 4 3 2 1 14 15 16 17 18 19 20 21 8 7 6 5 4 3 2 1 7 6 5 4 3 2 1 0 8 7 6 5 4 3 2 1 C14 22p GND 2 1 16MHz Q2 2 1 16MHz Q1 MOSI2 2 COMMUNICATION 7 RN2B 22R 3 1 2 3 4 6 RN2C 22R USBVCC 22R 8 RN2A 1 500mA DD+ 22R 5 RN2D 4 1 8 R2 RD- 1M RD+ 2 7 4 XT1 16MHz +5V GND 5 32 27 31 30 29 28 EXP 1 21 20 19 18 17 MISO2 16 MOSI2 15 SCK2 14 (PCINT7/OC0A/OC1C)PB7 (PCINT6)PB6 (PCINT5)PB5 (T1/PCINT4)PB4 (PD0/MISO/PCINT3)PB3 (PDI/MOSI/PCINT2)PB2 (SCLK/PCINT1)PB1 (SS/PCINT0)PB0 RESET(PC1/DW) XTAL2(PC0) XTAL1 AVCC UCAP UVCC DD+ UGND PAD 22 23 25 26 5 (INT4/ICP1/CLK0)PC7 (OC1A/PCINT8)PC6 (PCINT9/OC1B)PC5 (PCINT10)PC4 (AIN2/PCINT11)PC2 VCC GND 13 12 11 TXL 10 RXL 9 M8RXD 8 M8TXD 7 6 (CTS/HWB/AIN6/TO/INT7)PD7 (RTS/AIN5/INT6)PD6 (XCK/AIN4/PCINT12)PD5 (INT5/AIN3)PD4 (TXD1/INT3)PD3 (RXD1/AIN1/INT2)PD2 (AIN0/INT1)PD1 (OC0B/INT0)PD0 2 PE0 PE1 7 RN4B 1k 3 7 C11 100n GND CMP +3V3 5 6 3 7 2 LM358D IC5A 1 LM358D GND C12 100n GND IC5B GATE_CMD +5V USBVCC +5V +5V 1 3 2 T2 FDN340P IN OUT 5 EN GND NC/FB 4 +3V3 +3V3 GND GND RESET GND 3 6 RN4C 1k TX YELLOW 4 M8RXD M8TXD 1 8 RN4A 1k VIN 2 ATMEGA8U2-MU 2 GND 5 RN1D 10K +5V DTR GROUND RN5D 10K 4 2 XT1R 1 VUCAP USBVCC RDRD+ UGND 1u C10 100n C9 RN3B 1k ADCL XT2 4 3 L1 RN3A 1k 24 Y2 BLM21 PWML 1 RESET-EN IC4 RESET2 C8 100n F1 XVCC GND PG5 pwm PG2 PG1 PG0 C15 22p C16 22p GND C17 22p 6 RN1C 10K 7 1 2 pwm pwm pwm pwm pwm pwm pwm pwm ADC7 ADC6 ADC5 ADC4 ADC3 ADC2 ADC1 ADC0 90 91 92 93 94 95 96 97 1 29 28 70 52 51 GND X2 TXD3 RXD3 TXD2 RXD2 TXD1 RXD1 2 4 6 ICSP PWMH SDA SCL PE5 PE4 PE3 1 MISO2 3 SCK2 RESET2 5 ATMEGA1280-16AU GND 4 3 5 2 1 79 69 68 67 66 65 64 63 PL7 PL6 PL5(OC5C) PL4(OC5B) PL3(OC5A) PL2(T5) PL1(ICP5) PL0(ICP4) ICSP1 2 VIN TXD3 RXD3 GND 42 41 40 39 38 37 36 35 pwm pwm +5V 13 12 11 10 9 8 C7 52 50 48 46 44 42 40 38 PH6 PH5 GND 100n (SCK) PB1 (MISO) PB3 PC7 PC6 PC5 PC4 PC3 PC2 PC1 PC0 8 7 6 5 4 3 2 1 XTAL2 2 2 4 6 8 10 12 14 16 60 59 58 57 56 55 54 53 (MISO) (MOSI) (SCK) AREF GND XT2 1 1 3 5 7 9 11 13 15 PB3 PB2 PB1 PB0 pwm pwm pwm pwm GND JP4 XTAL1 36 34 32 30 28 26 24 22 8 PB0 (SS) PB2 (MOSI) PL0 PL2 PL4 PL6 PG0 PG2 PB7 PB6 PB5 PB4 PC1 PC3 PC5 PC7 PA6 PA4 PA2 PA0 4 53 51 49 47 45 43 41 39 XIOL (A15)PC7 (A14)PC6 (A13)PC5 (A12)PC4 (A11)PC3 (A10)PC2 (A9)PC1 (A8)PC0 26 25 24 23 22 21 20 19 2 4 6 8 10 12 14 16 1 XT1 USB boot En UBOOT GND (OC0A/OC1C/PCINT7)PB7 (OC1B/PCINT6)PB6 (OC1A/PCINT5)PB5 (OC2A/PCINT4)PB4 (MISO/PCINT3)PB3 (MOSI/PCINT2)PB2 (SCK/PCINT1)PB1 (SS/PCINT0)PB0 1 3 5 7 9 11 13 15 JP3 10K 8 RN5A 1 100n VCC VCC VCC VCC GND GND GND GND XIOH JP2 1 100n C13 100n AREF AVCC AGND PC0 PC2 PC4 PC6 PA7 PA5 PA3 PA1 JP1 1 UGND 100n GND 10 31 61 80 11 32 62 81 C6 XTAL1 37 35 33 31 29 27 25 23 PGB1010604 C5 98 100 99 PA7 PA6 PA5 PA4 PA3 PA2 PA1 PA0 Z2 C4 +5V XTAL2 71 72 73 74 75 76 77 78 PGB1010604 34 (AD7)PA7 (AD6)PA6 (AD5)PA5 (AD4)PA4 (AD3)PA3 (AD2)PA2 (AD1)PA1 (AD0)PA0 (MOSI) USB 100n 33 XTAL1R RESET PB2 Z1 AREF C3 30 XTAL2 AREF R3 27R XTAL1 2 4 6 SCL SDA P$2 P$1 GND 16MHz 1 3 5 ICSP IC3 R1 1M PB3 PB1 RESET (MISO) (SCK) GND GND RESET Y1 RESET 4 ICSP 1 R4 27R 5 +5V 6 GND YELLOW RN3D 1k L 22p P$1 1 GND PC2 47u GREEN ON USHIELD P$2 ADJ 6 +5V C1 GND 3 +5V 3 8 VO RN3C 1k 2 100n GND GND VI C2 + PWRIN 3 RESET GND D1 M7 PC1 47u + 2 2 1 1 3 +5V GND IC2 MC33269D-5.0 VIN 3 +5V GND 1 MC33269ST-5.0T3 RN1B 10K 4 2 IN OUT RN5B 10K RN5C 10K IC1 RN1A 10K 3 5 RX RN4D 1k YELLOW +5V
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