The Microchip ATmega128-16AUR is a high-performance 8-bit AVR microcontroller designed for complex embedded applications. Built on RISC architecture, it balances processing power, energy efficiency, and versatility, making it ideal for industrial automation, consumer electronics, and IoT projects.

Key Specifications

• Core: 8-bit AVR RISC

• Clock Speed: 16 MHz (Internal/External Oscillator)

• Memory: 128 KB Flash, 4 KB SRAM, 4 KB EEPROM

• I/O Pins: 53 Programmable GPIOs

• Communication: 4x UART, SPI, I²C (TWI)

• Analog: 8-Channel 10-bit ADC

• Package: 64-TQFP (10x10mm)

• Voltage Range: 2.7V – 5.5V

Top Features of the ATmega128-16AUR

1. High-Speed Processing
   Achieves 16 MIPS throughput at 16 MHz, enabling real-time control for motor drives, sensor networks, and communication systems.

2. Rich Peripheral Integration

   • Multiple UART Ports: Simplify multi-device communication (e.g., RS485 networks).

   • Advanced PWM Modules: Support precision motor control and LED dimming.

   • 10-bit ADC: Capture analog signals with 15 kSPS resolution.

3. Low-Power Modes
   Optimize energy use with Idle, Power-save, and Power-down modes, critical for battery-operated IoT devices.

Industrial & Commercial Applications

• Factory Automation: PLCs, robotic control systems.

• Consumer Electronics: Smart home hubs, LED displays.

• Communications: Multi-protocol gateways (UART-to-WiFi).

• Education: Embedded programming labs and STEM projects.

Design Tips for Engineers

• Memory Management: Use PROGMEM to store large datasets in Flash.

• Power Optimization: Disable unused peripherals via the PRR register.

• Signal Integrity: Add decoupling capacitors near the VCC/GND pins.

The Microchip ATmega128-16AUR remains a robust choice for developers needing reliable 8-bit control with extensive I/O and communication options. Its low power consumption and industrial-grade durability make it suitable for demanding environments. For new designs, evaluate 32-bit alternatives like STM32 or upgrade to the ATmega2560 for enhanced memory.

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Part Number	ATMEGA8-16AUR	ATMEGA8L-8AUR	ATMEGA162-16AUR	ATMEGA8-16MUR	ATMEGA8L-8MUR
Manufacturer	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology
Package/Case	64-TQFP	64-TQFP	64-TQFP	64-TQFP	64-TQFP
Packaging	Tape & Reel (TR),Cut Tape (CT)	Tape & Reel (TR),Cut Tape (CT)	Tape & Reel (TR),Cut Tape (CT)	Tape & Reel (TR),Cut Tape (CT)	Tape & Reel (TR),Cut Tape (CT)
Series	AVR® ATmega	AVR® ATmega	AVR® ATmega	AVR® ATmega	AVR® ATmega
ProductStatus	RoHS	RoHS	RoHS	RoHS	RoHS
CoreProcessor	16MHz	16MHz	16MHz	16MHz	16MHz
CoreSize	4K x 8	4K x 8	4K x 8	4K x 8	4K x 8
Speed	8-Bit	8-Bit	8-Bit	8-Bit	8-Bit
Connectivity	4K x 8	4K x 8	4K x 8	4K x 8	4K x 8
Peripherals	Active	Active	Active	Active	Active
NumberofI/O	Brown-out Detect/Reset, POR, PWM, WDT	Brown-out Detect/Reset, POR, PWM, WDT	Brown-out Detect/Reset, POR, PWM, WDT	Brown-out Detect/Reset, POR, PWM, WDT	Brown-out Detect/Reset, POR, PWM, WDT
ProgramMemorySize	EBI/EMI, I²C, SPI, UART/USART	EBI/EMI, I²C, SPI, UART/USART	EBI/EMI, I²C, SPI, UART/USART	EBI/EMI, I²C, SPI, UART/USART	EBI/EMI, I²C, SPI, UART/USART
ProgramMemoryType	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
EEPROMSize	53	53	53	53	53
RAMSize	AVR	AVR	AVR	AVR	AVR
Voltage-Supply(Vcc/Vdd)	A/D 8x10b	A/D 8x10b	A/D 8x10b	A/D 8x10b	A/D 8x10b
DataConverters	Internal	Internal	Internal	Internal	Internal
OscillatorType	128KB (64K x 16)	128KB (64K x 16)	128KB (64K x 16)	128KB (64K x 16)	128KB (64K x 16)
OperatingTemperature	FLASH	FLASH	FLASH	FLASH	FLASH
MountingType	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)

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