ATMEGA328P-PU CHIP ATMEGA328 Microcontroller Original

ATMEGA328P-PU CHIP ATMEGA328 Microcontroller MCU AVR 32K 20MHz Flash DIP-28. Original



ATMEGA328p Microcontroller Chip Dip Description.

ATMEGA328p Microcontroller Chip Dip ,The high-performance Microchip 8-bit AVR® RISC-base microcontroller combines 32 KB ISP Flash memory with read-while-write capabilities, 1 KB EEPROM, 2 KB SRAM, 23 general purpose I/O lines, 32 general purpose working registers, three flexible timer/counters with compare modes, internal and external interrupts, serial programmable USART, a byte-orient Two-Wire serial interface, SPI serial port, 6-channel 10-bit A/D converter (8-channels in TQFP and QFN/MLF packages), programmable watchdog timer with internal oscillator, and five software selectable power saving modes. The device operates between 1.8-5.5 volts.

By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching one MIPS per MHz, balancing power consumption and processing speed.

Microcontroller Chip Dip Parameters

Program Memory Type
Program Memory Size (KB)
Data EEPROM/HEF (bytes)
Digital Communication Peripherals
1-UART, 2-SPI, 1-I2C
Capture/Compare/PWM Peripherals
1 Input Capture, 1 CCP, 6PWM
ATmega328 is commonly use in many projects and autonomous systems where a simple, low-power, low-cost micro-controller is need. Perhaps the most common implementation of this chip is on the popular Arduino development platform, namely the Arduino Uno, Arduino Pro Mini and Arduino Nano models.
Reliability qualification shows that the project data retention failure rate is much less than 1 PPM over 20 years at 85 °C or 100 years at 25 °C. Programming mode is enter when PAGEL (PD7), XA1 (PD6), XA0 (PD5), BS1 (PD4) is set to zero. RESET pin to 0 V and VCC to 0 V. VCC is set to 4.5–5.5 V. Wait 60 μs, and RESET is set to 11.5–12.5 V. Wait more than 310 μs. Set XA1:XA0:BS1:DATA = 100 1000 0000, pulse XTAL1 for at least 150 ns, pulse WR to zero. This starts the chip erase.
Wait until RDY/BSY (PD1) goes high. XA1:XA0:BS1:DATA = 100 0001 0000, XTAL1 pulse, pulse WR to zero. This is the flash write command. And so on.
Serial data to the MCU is clock on the rising edge and data from the MCU is clock on the falling edge. Power is apply to VCC while RESET and SCK are set to zero. Wait for at least 20 MS and then the programming enable serial instruction 0xAC, 0x53, 0x00, 0x00 is sent to the MOSI pin. The second byte (0x53) will be echo back by the MCU.

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