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Errata","DS80000855C,2024","https:\u002F\u002Fww1.microchip.com\u002Fdownloads\u002FaemDocuments\u002Fdocuments\u002FMCU08\u002FProductDocuments\u002FErrata\u002FATmega48APA88APA168APA328P-SiliConErrataClarif-DS80000855.pdf",[1077,1080,1083,1086],{"slug":1078,"name":1079},"arduino-pro-mini","Arduino Pro Mini",{"slug":1081,"name":1082},"arduino-uno-r3","Arduino Uno R3",{"slug":1084,"name":1085},"arduino-mega-2560","Arduino Mega 2560 Rev3",{"slug":1087,"name":1088},"arduino-pro-micro","Arduino Pro Micro",[],[],{"title":1092,"description":1093,"card":1094,"intro":1095,"safe":1096,"adc":1097,"interfaces":1098,"strapping":1099,"input":1100,"overview":1101,"components":1125},"Arduino Nano Classic Pinout & Reference","Interactive Arduino Nano pinout and pin diagram. Compact DIP-30 board, ATmega328P, 5V logic, 8 analog inputs (A0-A7), 14 digital I\u002FO, Mini-B USB.","Breadboard-friendly 5V ATmega328P module in a DIP-30 package with 8 analog inputs.","The Arduino Nano Classic is a compact, breadboard-friendly board based on the ATmega328P. It provides identical computing capability to the Uno in a DIP-30 footprint with 2 extra analog inputs.","Use 5 V logic and the documented maximum of 20 mA per GPIO. VIN is recommended at 7–12 V. The silicon’s 40 mA absolute limit is not an operating-current target.","Pins A0-A7 provide 8 channels of 10-bit ADC. Note: A6 and A7 are dedicated analog inputs and cannot be used as digital GPIO.","UART on pin 1 (TX) and pin 2 (RX). SPI on D10 (SS), D11 (MOSI), D12 (MISO), D13 (SCK) plus ICSP. I2C on pin 23 (A4\u002FSDA) and pin 24 (A5\u002FSCL).","Standard AVR architecture. D13 drives the onboard L LED.","D0–D13 and A0–A5 are bidirectional GPIO with internal pull-ups. D0\u002FD1 share the FT232RL serial connection; D13 drives L. A6\u002FA7 are analog-only and have no GPIO pull-ups.",{"summary":1102,"power":1103,"notes":1107,"useCases":1111,"before":1115,"blueprint":1119,"variants":1120},"Arduino Nano Classic is a compact, breadboard-friendly ATmega328P board with 5 V logic, Mini-B USB, and two additional analog-only inputs compared with the Uno.",{"usb":1104,"vin":1105,"five":1106},"Mini-B USB provides the board 5 V supply and serial programming connection.","VIN accepts an external unregulated 7–12 V supply through the onboard regulator.","The 5V pin connects to the regulated 5 V board rail.",{"logic":1108,"current":1109,"a6a7":1110},"The ATmega328P and exposed digital I\u002FO use 5 V logic.","The board specifies at most 20 mA per GPIO. Observe the MCU’s 200 mA VCC\u002FGND aggregate and port-group budgets. Its 40 mA absolute limit must not be used as a normal load.","A6 and A7 are analog-input-only pins and cannot operate as digital GPIO.",{"breadboard":1112,"education":1113,"robotics":1114},"Compact breadboard prototypes and sensor interfaces.","Embedded programming and electronics education.","Small robots, controllers, and permanent embedded installations.",{"logic":1116,"aref":1117,"a6a7":1118},"Confirm connected peripherals are compatible with 5 V logic.","Respect the documented AREF voltage and analog-reference configuration.","Use A6 and A7 only as analog inputs.","The model depicts the Nano V3.3 board without fitted pin headers with FT232RL, Mini-B USB and a 5 × 5 mm ATmega328P-MUR package. Its 30 main contacts and six ICSP contacts are CAD-grounded. Fitted headers, USB bridges and MCU packages vary on compatible boards.",{"bootloader":1121,"bridge":1122,"silicon":1123,"family":1124},"Select ATmega328P for current official Nano boards; pre-2018 boards may need ATmega328P (Old Bootloader). The official core uses 115200 and 57600 baud respectively.","The reference board uses FT232RL. CH340 or USB-C derivatives may need different drivers and have different power circuits; check their schematic.","The reference MCU is ATmega328P-MUR in QFN32. Other package variants exist; ATmega168 derivatives need the corresponding processor selection and have less flash.","Nano Every, Nano 33 and Nano ESP32 are separate boards. Confirm their MCU, logic levels and pin allocation before reusing Classic wiring.",{"usb":1126,"mcu":1127,"clock":1128,"reset":1129,"icsp":1130,"leds":1131,"bridge":1132,"regulator":1133},"Mini-B USB supplies power and connects to the FT232RL USB-to-serial bridge. It is not a Micro-B connector or a native-USB port on the ATmega328P.","ATmega328P-MUR, QFN32 with a 5 × 5 mm body, 16 MHz clock, 32 KB flash and 2 KB SRAM. A6\u002FA7 are dedicated analog inputs.","16 MHz ceramic resonator in the reference CAD. The FT232RL has its own internal USB clock; this resonator clocks the MCU.","Active-low RESET restarts the ATmega328P. The FT232RL DTR signal also provides automatic reset for serial uploads.","J4 has MISO, +5V, SCK, MOSI, RESET and GND. MISO\u002FSCK\u002FMOSI repeat D12\u002FD13\u002FD11; these are not extra GPIO signals. Check orientation before attaching a programmer.","L is controlled by D13; ON indicates power. TX\u002FRX indicate FT232RL serial activity. The reference CAD colours do not define the colours of every compatible board.","Bottom-side FT232RL USB-to-serial bridge connected to D0\u002FRX and D1\u002FTX. Its 3V3OUT feeds the authentic board’s 3V3 pin, with a 50 mA maximum external load.","LM1117-5.0 regulates VIN to the 5 V rail. The 3V3 output comes from FT232RL. Thermal and system-load limits apply; the regulator’s device rating is not a board current budget.",1793836401984]