| PartNumber | ATMEGA161-8AI | ATMEGA161-8AC | ATMEGA161-8PC |
| Description | 8-bit Microcontrollers - MCU 8bit w/16KBytes | IC MCU 8BIT 16KB FLASH 44TQFP | IC MCU 8BIT 16KB FLASH 40DIP |
| Manufacturer | Microchip | - | - |
| Product Category | 8-bit Microcontrollers - MCU | - | - |
| RoHS | N | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | TQFP-44 | - | - |
| Series | ATmega161 | - | - |
| Core | AVR | - | - |
| Data Bus Width | 8 bit | - | - |
| Maximum Clock Frequency | 8 MHz | - | - |
| Program Memory Size | 16 kB | - | - |
| Data RAM Size | 1 kB | - | - |
| ADC Resolution | No ADC | - | - |
| Number of I/Os | 35 I/O | - | - |
| Operating Supply Voltage | 4 V to 5.5 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Height | 1.05 mm | - | - |
| Length | 10.1 mm | - | - |
| Product | MCU | - | - |
| Program Memory Type | Flash | - | - |
| Width | 10.1 mm | - | - |
| Brand | Microchip Technology / Atmel | - | - |
| Data RAM Type | SRAM | - | - |
| Data ROM Size | 512 B | - | - |
| Data ROM Type | EEPROM | - | - |
| Interface Type | SPI, UART | - | - |
| Number of Timers/Counters | 2 Timer | - | - |
| Processor Series | megaAVR | - | - |
| Product Type | 8-bit Microcontrollers - MCU | - | - |
| Subcategory | Microcontrollers - MCU | - | - |
| Supply Voltage Max | 5.5 V | - | - |
| Supply Voltage Min | 4 V | - | - |
| Tradename | AVR | - | - |