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| PartNumber | ATTINY861-15XD | ATTINY861-15MAZ | ATTINY861-15XZ |
| Description | 8-bit Microcontrollers - MCU 8KB Flash Auto 150-degrees C | 8-bit Microcontrollers - MCU 8KB FLASH 5.5V 8-Bit | 8-bit Microcontrollers - MCU 8KB Flash Auto 125-degrees C |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Shipping Restrictions | - | - | |
| RoHS | Y | N | Y |
| Series | ATtinyx61 | ATtinyx61 | ATtinyx61 |
| Core | AVR | AVR | AVR |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Program Memory Size | 8 kB | 8 kB | 8 kB |
| Data RAM Size | 512 B | 512 B | 512 B |
| Maximum Operating Temperature | + 85 C | + 125 C | + 85 C |
| Packaging | Reel | Reel | Reel |
| Product | MCU | MCU | MCU |
| Program Memory Type | Flash | Flash | Flash |
| Brand | Microchip Technology / Atmel | 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 |
| Processor Series | tinyAVR | tinyAVR | tinyAVR |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 4000 | 6000 | 4000 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Tradename | AVR | AVR | AVR |
| Mounting Style | - | SMD/SMT | SMD/SMT |
| Package / Case | - | QFN-20 | TSSOP-20 |
| Maximum Clock Frequency | - | 16 MHz | 16 MHz |
| Number of I/Os | - | 16 I/O | 16 I/O |
| Minimum Operating Temperature | - | - 40 C | - 40 C |
| Height | - | 0.75 mm (Max) | 0.95 mm |
| Length | - | 4 mm | 6.6 mm |
| Width | - | 4 mm | 4.5 mm |
| Interface Type | - | SPI | SPI |
| Number of Timers/Counters | - | 2 Timer | 2 Timer |
| Supply Voltage Max | - | 5.5 V | 5.5 V |
| Supply Voltage Min | - | 2.7 V | 2.7 V |
| Unit Weight | - | 0.002173 oz | 0.006737 oz |
| ADC Resolution | - | - | 10 bit |
| Number of ADC Channels | - | - | 11 |