| PartNumber | ATMEGA16HVB-8X3 | ATMEGA16HVA-4CKU | ATMEGA16HVA-4TU |
| Description | 8-bit Microcontrollers - MCU AVR,32KB FLASH,8MHz Ind. Temp 4-25V | 8-bit Microcontrollers - MCU 16KB Flash Memory 1.8V - 9.0V Supply | 8-bit Microcontrollers - MCU 16KB Flash Memory 1.8V - 9.0V Supply |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | TSSOP-44 | LGA-36 | TSOP-28 |
| Series | ATmega16HVB | ATmega16HVA | ATmega16HVA |
| Core | AVR | AVR | AVR |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Maximum Clock Frequency | 8 MHz | 4 MHz | 4 MHz |
| Program Memory Size | 16 kB | 16 kB | 16 kB |
| Data RAM Size | 1 kB | 512 B | 512 B |
| ADC Resolution | 12 bit | 12 bit | 12 bit |
| Number of I/Os | 17 I/O | 6 I/O | 6 I/O |
| Operating Supply Voltage | 4 V to 25 V | 1.8 V to 9 V | 1.8 V to 9 V |
| Minimum Operating Temperature | - 40 C | - 20 C | - 20 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Tray | Tray | Tray |
| Height | 1.05 mm | 1 mm | 0.66 mm |
| Length | 11 mm | 8 mm | 6.5 mm |
| Product | MCU | MCU | MCU |
| Program Memory Type | Flash | Flash | Flash |
| Width | 4.4 mm | 11.8 mm | 3.5 mm |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Data RAM Type | SRAM | SRAM | SRAM |
| Data ROM Size | 512 B | 256 B | 256 B |
| Data ROM Type | EEPROM | EEPROM | EEPROM |
| Interface Type | SPI, TWI | SPI | SPI |
| Moisture Sensitive | Yes | Yes | Yes |
| Number of ADC Channels | 7 | 5 | 5 |
| Number of Timers/Counters | 2 Timer | 2 Timer | 2 Timer |
| Processor Series | megaAVR | megaAVR | megaAVR |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 242 | 364 | 234 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 25 V | 9 V | 9 V |
| Supply Voltage Min | 4 V | 1.8 V | 1.8 V |
| Tradename | AVR | AVR | AVR |
| Unit Weight | 0.004914 oz | - | 0.028219 oz |