ATmega series avr integrated IIC interface, SPI interface, AD conversion, PWM output, self-programming boot area, watchdog, and its own eeprom. And the internal driving ability is strong, each IO can output 20ma, or pour 40ma, the data processing speed is 1MipS/s (using the same crystal, which is 12 times the speed of ATMEGA51), using a reduced instruction set, the data processing speed is faster.

ATMEGA48-20AU is an 8-bit low-power CMOS microcontroller unit based on AVR-enhanced RISC architecture. By executing powerful instructions in a single clock cycle, it achieves throughputs approaching 1 MIPS/MHz, allowing the system to optimize power consumption and processing speed. The AVR core combines a rich instruction set with 32 general-purpose working registers. All 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing access to two independent registers in one instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving throughput ten times faster than traditional CISC microcontrollers.

Main features

• Advanced RISC architecture

– 131 powerful commands

– Most single clock cycle execution

– 32x8 general purpose working registers

– Completely static operation

– Throughput up to 20MIPS at 20MHz

– On-chip 2-cycle multiplier

• High-endurance non-volatile memory segment

– 4K/8K/16KB in-system self-programmable flash program memory

– 256/512/512 bytes EEPROM

– 512/1K/1KB internal SRAM

– Write/Erase Cycles: 10,000 Flash/100,000 EEPROM

– Data retention: 20 years at 85°C / 100 years at 25°C(1)

– Optional boot code section with separate lock bits

• In-system programming via on-chip startup routine

• True read-while-write operations

– Software security programming lock

– Atmel® QTouch® support

– Capacitive touch buttons, sliders and wheels

– QTouch and QMatrix® acquisitions

– Up to 64 sensing channels

• Peripheral Features

– Two 8-bit timer/counters with independent prescaler and compare modes

– One 16-bit timer/counter with independent prescaler, compare mode and capture mode

– Real-time counter with independent oscillator

– 6 PWM channels

– 8-channel 10-bit ADC in TQFP and QFN/MLF packages

• Temperature measurement

– 6-channel 10-bit ADC in PDIP package

• Temperature measurement

– Two master/slave SPI serial interfaces

– A programmable serial USART

– A byte-oriented 2-wire serial interface (Philips I2C compatible)

– Programmable watchdog timer with independent on-chip oscillator

– An on-chip analog comparator

- Interrupt and wake up on PinChang

• Special microcontroller features

– Power-on reset and programmable brown-out detection

– Internally calibrated oscillator

– External and internal interrupt sources

– Six sleep modes: idle, ADC noise reduction, power saving, power saving, standby and extended standby

• I/O and software packages

– 23 programmable I/O lines

– 28-pin PDIP, 32-pin TQFP, 28-pad QFN/MLF, and 32-pad QFN/MLF

• Operating Voltage:

– 2.7-5.5V for ATmega48/88/168

– 1.8-5.5V for ATmega48V/88V/168V

• temperature range:

– -40°C to 85°C

• Speed class:

– ATmega48/88/168: 0-10MHz@2.7V-5.5V, 0-20MHz@4.5V-5.5V

– ATmega48V/88V/168V: 0-4MHz@1.8V-5.5V, 0-10MHz@2.7V-5.5V

• Power consumption at 1MHz, 1.8V, 25°C

– Working mode: 0.3mA

– Shutdown mode: 0.1μA

– Power saving mode: 0.8μA (including 32kHzRTC)

Overall block diagram

The AP8000 universal writer independently developed by ACROVIEW Technology includes three parts: the host, the bottom plate, and the adapter seat.

The host supports USB and NET connections, allowing multiple programmers to be networked to achieve the purpose of simultaneously controlling multiple automatic programmers to burn at the same time. The built-in chip safety protection circuit ensures that even if the chip is reversed or a short circuit caused by other reasons can be detected immediately and power-off processing is performed to ensure the safety of the chip and the programmer. Embedded high-speed FPGA greatly accelerates data transmission and processing. There is an SD card slot on the back of the host. Put the project file created by the PC software in the root directory of the SD card and insert it into the card slot. Through the buttons on the programmer, the project file can be selected, loaded, and burned, etc. Command, in order to achieve the purpose of being able to operate without the PC, which greatly reduces the cost of PC hardware configuration, and is convenient and quick to match the working environment.

AP8000 makes the host more expandable by adding an adapter board to the base plate. At present, it has supported devices produced by all mainstream semiconductor manufacturers, including TI, ST, MicroChip, Atmel, Hynix, Macronix, Micron, Samsung, Toshiba, etc. The supported device types are NAND, NOR, MCU, CPLD, FPGA, EMMC, etc., and file formats including Intel Hex, Motorola S, Binary, POF, etc. are supported.

About Microchip Technology: American Microchip Technology (MicroChip), established in 1989, ranks first in the world's 8-bit microcontroller (MCU) shipments. is the world's leading supplier of microcontrollers and analog semiconductors, providing low-risk product development and lower total system cost for thousands of consumer products worldwide. In 2016, US chipmaker Microchip announced the acquisition of Atmel for $3.6 billion.

About ACROVIEW: ACROVIEW is the world's leading provider of semiconductor chip programming solutions. The company insists on changing the world with technology, driving the future with intelligence, and continuously creating value for customers. Oncor's AP8000 universal programmer platform and the latest IPS5000 programming automation solution provide one-stop solutions for customers in the semiconductor and electronic manufacturing fields. The company has served global leading customers such as Huawei, BYD, and Foxconn.