圖片僅供參考

ATMEGA168-20MU

Name: ATMEGA168-20MU
Rating: 4.7 (12 reviews)

IC MCU 8BIT 16KB FLASH 32VQFN

製造商
製造商。部分 #ATMEGA168-20MU
包 32-VFQFN Exposed Pad
資料表 ATMEGA168-20MU DataSheet
有現貨的2030

+BOM RFQ

100%原創；新

24小時準備發貨

365天保修

RFQ&；獲得更多折扣

規格

Supplier	Microchip Technology
Package	Tray
Series	AVR® ATmega
ProductStatus	Active
CoreProcessor	AVR
CoreSize	8-Bit
Speed	20MHz
Connectivity	I²C, SPI, UART/USART
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT
NumberofI/O	23
ProgramMemorySize	16KB (8K x 16)
ProgramMemoryType	FLASH
EEPROMSize	512 x 8
RAMSize	1K x 8
Voltage-Supply(Vcc/Vdd)	2.7V ~ 5.5V
DataConverters	A/D 8x10b
OscillatorType	Internal
OperatingTemperature	-40°C ~ 85°C (TA)
MountingType	Surface Mount
Package/Case	32-VFQFN Exposed Pad

概述

Description

ATmega168-20MU is an 8‑bit AVR microcontroller from Atmel (Microchip) in a 32‑pin package, running up to 20 MHz.
Key specs:
- Memory: 16 KB flash, 1 KB SRAM, 512 B EEPROM.
- I/O: about 22 general-purpose I/O pins (Port A/B/C).
- Peripherals: 8‑channel 10‑bit ADC, three timers (8/16‑bit) with PWM, SPI, I2C (TWI), USART, analog comparator, watchdog timer.
- Features: in‑system programming via SPI, bootloader support, multiple power‑saving modes.
- Voltage and speed: 20 MHz operation typically requires ~4.5–5.5 V; lower speeds acceptable at 1.8–5.5 V.
- Architecture: Harvard, RISC with a compact, fast instruction set and 32 general-purpose registers.
Applications:
- Small embedded controllers, sensor data acquisition, motor control, hobby projects.
Development:
- Supported by AVR-GCC toolchain and Atmel Studio (Microchip Studio). Similar in spirit to Arduino-family MCUs (but with more direct AVR setup options).

Features

ATmega168-20MU features (concise):
- 8-bit AVR RISC microcontroller
- Max clock: 20 MHz (ATmega168-20MU)
- Memory: 16 KB Flash, 1 KB SRAM, 512 B EEPROM
- I/O: up to 23 general-purpose I/O lines (Port B, C, D)
- Timers: three timer/counters (8/16-bit) with PWM
- ADC: 8-channel, 10-bit ADC
- Serial interfaces: USART, SPI, I2C (TWI)
- Peripherals: analog comparator, Watchdog Timer, Brown-out detector
- Power: 1.8–5.5 V operating range; supports low-power modes
- Clock options: on-chip 8 MHz RC oscillator + external crystal; 20 MHz max
- Package: 28-pin MU (SOIC) and other 28-pin packages
- Programming/debug: In-System Programmable via SPI; optional on-chip debug interface on supported devices
Applications: general-purpose embedded control and low-power projects.

Package

ATmega168-20MU comes in a 28-pin SOIC (surface-mount) package.

Pinout

- Pin count: 28 pins (MU package, i.e., 28‑pin SOIC).
- Function: ATmega168 is an 8‑bit AVR microcontroller with up to 20 MHz operation, 16 KB Flash, 1 KB SRAM, 512 B EEPROM. Peripherals include three timers (0/1/2), 8‑channel 10‑bit ADC, USART, SPI, I2C/TWI, PWM outputs, watchdog timer, external interrupts, and I/O ports B/C/D (plus VCC, GND, AVCC, AREF, RESET).

Manufacturer

- Manufacturer: Atmel Corporation (now part of Microchip Technology after an acquisition).
- What kind of company: A semiconductor company that designs and manufactures microcontrollers and other embedded processing products (e.g., AVR MCUs, memory, touch solutions) for embedded systems.

Application

ATmega168-20MU is a low‑power 8‑bit AVR MCU with 16 KB flash, 1 KB RAM, 512 B EEPROM, 8‑ch 10‑bit ADC, timers, PWM, UART/SPI/I2C, and sleep modes. Suitable applications:
- Embedded control in consumer electronics (appliances, toys)
- Sensor data acquisition and data logging
- Home automation and remote sensing
- Robotics and motor/control applications
- Battery-powered portable devices and wearables
- Industrial instrumentation and small automation
- Automotive body electronics (sensors/displays)
- Prototyping, education, and hobbyist projects (Arduino/AVR)

Equivalent

Equivalent products are other package variants of the same MCU (ATmega168) at 20 MHz:
- ATmega168-20PU (DIP-28)
- ATmega168-20SU (SOIC-28)
- ATmega168-20AU (TQFP-32)
All share same core (16 KB flash, 1 KB RAM, 512 B EEPROM) and 20 MHz speed. The -MU suffix indicates the QFN/TQFP32 package.