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| PartNumber | ATMEGA88P-20MU | ATMEGA88P-20AUR | ATMEGA88P-20AU |
| Description | 8-bit Microcontrollers - MCU AVR 8K FLASH 512B EE 20MHZ TEMP GRN 1.8V | 8-bit Microcontrollers - MCU AVR 8KB FLSH 512B EE 1KB SRAM-20MHZ 5V | Microcontrollers - MCU 8-bit Microcontrollers - MCU AVR 8K FLASH 512B EE 20MHZ TEMP GRN 1.8V |
| Manufacturer | Microchip | Microchip | Atmel |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | Embedded - Microcontrollers |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | - | SMD/SMT |
| Package / Case | MLF-32 | TQFP-32 | - |
| Series | ATmega88P | ATmega88P | AVRR ATmega |
| Core | AVR | AVR | AVR |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Maximum Clock Frequency | 20 MHz | 20 MHz | 20 MHz |
| Program Memory Size | 8 kB | 8 kB | 8KB (4K x 16) |
| Data RAM Size | 1 kB | 1 kB | 1 kB |
| ADC Resolution | 10 bit | 10 bit | 10 bit |
| Number of I/Os | 23 I/O | 23 I/O | - |
| Operating Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Tray | Reel | Tray Alternate Packaging |
| Height | 0.88 mm | - | - |
| Length | 5 mm | - | - |
| Product | MCU | MCU | MCU |
| Program Memory Type | Flash | Flash | FLASH |
| Width | 5 mm | - | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | - |
| Data RAM Type | SRAM | SRAM | SRAM |
| Data ROM Size | 512 B | 512 B | 512 B |
| Data ROM Type | EEPROM | EEPROM | EEPROM |
| Interface Type | I2C, SPI, USART | I2C, SPI, USART | I2C SPI USART |
| Analog Supply Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| DAC Resolution | - | - | - |
| I/O Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | - |
| Moisture Sensitive | Yes | Yes | - |
| Number of ADC Channels | 8 Channel | 8 Channel | 8 Channel |
| Number of Timers/Counters | 3 Timer | 3 Timer | - |
| Processor Series | megaAVR | megaAVR | megaAVR |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| Factory Pack Quantity | 490 | 2000 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 2.7 V | 2.7 V | - |
| Tradename | AVR | AVR | ATMEGA |
| Watchdog Timers | Watchdog Timer | Watchdog Timer | Watchdog Timer |
| Unit Weight | 0.002145 oz | - | 0.002568 oz |
| Package Case | - | - | TQFP-32 |
| Operating Temperature | - | - | -40°C ~ 85°C (TA) |
| Supplier Device Package | - | - | 32-TQFP (7x7) |
| Number of I O | - | - | 23 |
| Speed | - | - | 20MHz |
| EEPROM Size | - | - | 512 x 8 |
| Core Processor | - | - | AVR |
| RAM Size | - | - | 1K x 8 |
| Peripherals | - | - | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | - | - | I2C, SPI, UART/USART |
| Voltage Supply Vcc Vdd | - | - | 2.7 V ~ 5.5 V |
| Core Size | - | - | 8-Bit |
| Data Converters | - | - | A/D 8x10b |
| Oscillator Type | - | - | Internal |
| Supply Voltage Max | - | - | 5.5 V |
| Supply Voltage Min | - | - | 2.7 V |
| Number of I Os | - | - | 23 I/O |
| I O Voltage | - | - | 1.8 V to 5.5 V |
| Number of Timers Counters | - | - | 3 Timer |