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ATMEGA644V-10AU
Public Made by Adomby adom
Microchip Tech Pre-ordered MCUs, TQFP-44(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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ATMEGA644V-10AU
Microchip Tech · Pre-ordered MCUs · TQFP-44(10x10)
ATMEGA644V-10AU from Microchip Tech, in a TQFP-44(10x10). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | PB5 | bidirectional | Port B bit 5 bidirectional I/O with internal pull-up, alternate functions PCINT13 and MOSI. |
| 2 | PB6 | bidirectional | Port B bit 6 bidirectional I/O with internal pull-up, alternate functions PCINT14 and MISO. |
| 3 | PB7 | bidirectional | Port B bit 7 bidirectional I/O with internal pull-up, alternate functions PCINT15 and SCK. |
| 4 | RESET | input | Reset input; a low level longer than the minimum pulse length generates a reset even if the clock is not running. |
| 5 | VCC | power_in | Digital supply voltage. |
| 6 | GND | power_in | Ground. |
| 7 | XTAL2 | output | Output from the inverting oscillator amplifier. |
| 8 | XTAL1 | input | Input to the inverting oscillator amplifier and input to the internal clock operating circuit. |
| 9 | PD0 | bidirectional | Port D bit 0 bidirectional I/O with internal pull-up, alternate functions PCINT24 and RXD0. |
| 10 | PD1 | bidirectional | Port D bit 1 bidirectional I/O with internal pull-up, alternate functions PCINT25 and TXD0. |
| 11 | PD2 | bidirectional | Port D bit 2 bidirectional I/O with internal pull-up, alternate functions PCINT26 and INT0. |
| 12 | PD3 | bidirectional | Port D bit 3 bidirectional I/O with internal pull-up, alternate functions PCINT27 and INT1. |
| 13 | PD4 | bidirectional | Port D bit 4 bidirectional I/O with internal pull-up, alternate functions PCINT28 and OC1B. |
| 14 | PD5 | bidirectional | Port D bit 5 bidirectional I/O with internal pull-up, alternate functions PCINT29 and OC1A. |
| 15 | PD6 | bidirectional | Port D bit 6 bidirectional I/O with internal pull-up, alternate functions PCINT30, OC2B and ICP. |
| 16 | PD7 | bidirectional | Port D bit 7 bidirectional I/O with internal pull-up, alternate functions PCINT31 and OC2A. |
| 17 | VCC | power_in | Digital supply voltage. |
| 18 | GND | power_in | Ground. |
| 19 | PC0 | bidirectional | Port C bit 0 bidirectional I/O with internal pull-up, alternate functions PCINT16 and SCL. |
| 20 | PC1 | bidirectional | Port C bit 1 bidirectional I/O with internal pull-up, alternate functions PCINT17 and SDA. |
| 21 | PC2 | bidirectional | Port C bit 2 bidirectional I/O with internal pull-up, alternate functions PCINT18 and JTAG TCK. |
| 22 | PC3 | bidirectional | Port C bit 3 bidirectional I/O with internal pull-up, alternate functions PCINT19 and JTAG TMS. |
| 23 | PC4 | bidirectional | Port C bit 4 bidirectional I/O with internal pull-up, alternate functions PCINT20 and JTAG TDO. |
| 24 | PC5 | bidirectional | Port C bit 5 bidirectional I/O with internal pull-up, alternate functions PCINT21 and JTAG TDI. |
| 25 | PC6 | bidirectional | Port C bit 6 bidirectional I/O with internal pull-up, alternate functions PCINT22 and TOSC1. |
| 26 | PC7 | bidirectional | Port C bit 7 bidirectional I/O with internal pull-up, alternate functions PCINT23 and TOSC2. |
| 27 | AVCC | power_in | Supply voltage for the ADC; should be connected to VCC even if the ADC is not used, through a low-pass filter if the ADC is used. |
| 28 | GND | power_in | Ground. |
| 29 | AREF | input | Analog reference pin for the analog-to-digital converter. |
| 30 | PA7 | bidirectional | Port A bit 7 bidirectional I/O with internal pull-up, ADC7 analog input and PCINT7. |
| 31 | PA6 | bidirectional | Port A bit 6 bidirectional I/O with internal pull-up, ADC6 analog input and PCINT6. |
| 32 | PA5 | bidirectional | Port A bit 5 bidirectional I/O with internal pull-up, ADC5 analog input and PCINT5. |
| 33 | PA4 | bidirectional | Port A bit 4 bidirectional I/O with internal pull-up, ADC4 analog input and PCINT4. |
| 34 | PA3 | bidirectional | Port A bit 3 bidirectional I/O with internal pull-up, ADC3 analog input and PCINT3. |
| 35 | PA2 | bidirectional | Port A bit 2 bidirectional I/O with internal pull-up, ADC2 analog input and PCINT2. |
| 36 | PA1 | bidirectional | Port A bit 1 bidirectional I/O with internal pull-up, ADC1 analog input and PCINT1. |
| 37 | PA0 | bidirectional | Port A bit 0 bidirectional I/O with internal pull-up, ADC0 analog input and PCINT0. |
| 38 | VCC | power_in | Digital supply voltage. |
| 39 | GND | power_in | Ground. |
| 40 | PB0 | bidirectional | Port B bit 0 bidirectional I/O with internal pull-up, alternate functions PCINT8, XCK0 and T0. |
| 41 | PB1 | bidirectional | Port B bit 1 bidirectional I/O with internal pull-up, alternate functions PCINT9, CLKO and T1. |
| 42 | PB2 | bidirectional | Port B bit 2 bidirectional I/O with internal pull-up, alternate functions PCINT10, INT2 and AIN0. |
| 43 | PB3 | bidirectional | Port B bit 3 bidirectional I/O with internal pull-up, alternate functions PCINT11, OC0A and AIN1. |
| 44 | PB4 | bidirectional | Port B bit 4 bidirectional I/O with internal pull-up, alternate functions PCINT12, OC0B and SS. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | TQFP-44(10x10) |
| Category | Embedded Processors & Controllers |
| Pins | 44 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage (ATmega644V-10AU speed grade, 10 MHz) | VCC | 1.8 | 5.5 | V | Ordering code ATmega644V-10AU, power supply 1.8V - 5.5V | 15 | |
| Clock frequency, ATmega644V speed grade | 0 | 10 | MHz | 0 - 10MHz @ 2.7V - 5.5V | 1 | ||
| Clock frequency, ATmega644V speed grade | 0 | 4 | MHz | 0 - 4MHz @ 1.8V - 5.5V | 1 | ||
| Operating temperature (industrial) | -40 | 85 | °C | Industrial operational range | 15 | ||
| Flash write/erase endurance | 10000 | cycles | Worst case temperature; guaranteed after last write cycle (note 1) | 1 | |||
| EEPROM write/erase endurance | 100000 | cycles | Worst case temperature; guaranteed after last write cycle (note 1) | 1 | |||
| Data retention | 20 | years | At 85°C | 1 | |||
| Data retention | 100 | years | At 25°C | 1 |
CAD (KiCad official)
- Symbol:
ATMEGA644V-10AU - Footprint:
Package_QFP:TQFP-44_10x10mm_P0.8mm - 3D model: TQFP-44(10x10) (KiCad packages3D, STEP)
- 3D model files:
atmega644v-10au-etched.step/atmega644v-10au-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);atmega644v-10au.step/atmega644v-10au.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (23 pp, sha256
40180a4e63a7d4d8, retrieved 2026-10-30, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).
# ATMEGA644V-10AU
**Microchip Tech** · Pre-ordered MCUs · TQFP-44(10x10)
ATMEGA644V-10AU from Microchip Tech, in a TQFP-44(10x10). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
## Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | PB5 | bidirectional | Port B bit 5 bidirectional I/O with internal pull-up, alternate functions PCINT13 and MOSI. |
| 2 | PB6 | bidirectional | Port B bit 6 bidirectional I/O with internal pull-up, alternate functions PCINT14 and MISO. |
| 3 | PB7 | bidirectional | Port B bit 7 bidirectional I/O with internal pull-up, alternate functions PCINT15 and SCK. |
| 4 | RESET | input | Reset input; a low level longer than the minimum pulse length generates a reset even if the clock is not running. |
| 5 | VCC | power_in | Digital supply voltage. |
| 6 | GND | power_in | Ground. |
| 7 | XTAL2 | output | Output from the inverting oscillator amplifier. |
| 8 | XTAL1 | input | Input to the inverting oscillator amplifier and input to the internal clock operating circuit. |
| 9 | PD0 | bidirectional | Port D bit 0 bidirectional I/O with internal pull-up, alternate functions PCINT24 and RXD0. |
| 10 | PD1 | bidirectional | Port D bit 1 bidirectional I/O with internal pull-up, alternate functions PCINT25 and TXD0. |
| 11 | PD2 | bidirectional | Port D bit 2 bidirectional I/O with internal pull-up, alternate functions PCINT26 and INT0. |
| 12 | PD3 | bidirectional | Port D bit 3 bidirectional I/O with internal pull-up, alternate functions PCINT27 and INT1. |
| 13 | PD4 | bidirectional | Port D bit 4 bidirectional I/O with internal pull-up, alternate functions PCINT28 and OC1B. |
| 14 | PD5 | bidirectional | Port D bit 5 bidirectional I/O with internal pull-up, alternate functions PCINT29 and OC1A. |
| 15 | PD6 | bidirectional | Port D bit 6 bidirectional I/O with internal pull-up, alternate functions PCINT30, OC2B and ICP. |
| 16 | PD7 | bidirectional | Port D bit 7 bidirectional I/O with internal pull-up, alternate functions PCINT31 and OC2A. |
| 17 | VCC | power_in | Digital supply voltage. |
| 18 | GND | power_in | Ground. |
| 19 | PC0 | bidirectional | Port C bit 0 bidirectional I/O with internal pull-up, alternate functions PCINT16 and SCL. |
| 20 | PC1 | bidirectional | Port C bit 1 bidirectional I/O with internal pull-up, alternate functions PCINT17 and SDA. |
| 21 | PC2 | bidirectional | Port C bit 2 bidirectional I/O with internal pull-up, alternate functions PCINT18 and JTAG TCK. |
| 22 | PC3 | bidirectional | Port C bit 3 bidirectional I/O with internal pull-up, alternate functions PCINT19 and JTAG TMS. |
| 23 | PC4 | bidirectional | Port C bit 4 bidirectional I/O with internal pull-up, alternate functions PCINT20 and JTAG TDO. |
| 24 | PC5 | bidirectional | Port C bit 5 bidirectional I/O with internal pull-up, alternate functions PCINT21 and JTAG TDI. |
| 25 | PC6 | bidirectional | Port C bit 6 bidirectional I/O with internal pull-up, alternate functions PCINT22 and TOSC1. |
| 26 | PC7 | bidirectional | Port C bit 7 bidirectional I/O with internal pull-up, alternate functions PCINT23 and TOSC2. |
| 27 | AVCC | power_in | Supply voltage for the ADC; should be connected to VCC even if the ADC is not used, through a low-pass filter if the ADC is used. |
| 28 | GND | power_in | Ground. |
| 29 | AREF | input | Analog reference pin for the analog-to-digital converter. |
| 30 | PA7 | bidirectional | Port A bit 7 bidirectional I/O with internal pull-up, ADC7 analog input and PCINT7. |
| 31 | PA6 | bidirectional | Port A bit 6 bidirectional I/O with internal pull-up, ADC6 analog input and PCINT6. |
| 32 | PA5 | bidirectional | Port A bit 5 bidirectional I/O with internal pull-up, ADC5 analog input and PCINT5. |
| 33 | PA4 | bidirectional | Port A bit 4 bidirectional I/O with internal pull-up, ADC4 analog input and PCINT4. |
| 34 | PA3 | bidirectional | Port A bit 3 bidirectional I/O with internal pull-up, ADC3 analog input and PCINT3. |
| 35 | PA2 | bidirectional | Port A bit 2 bidirectional I/O with internal pull-up, ADC2 analog input and PCINT2. |
| 36 | PA1 | bidirectional | Port A bit 1 bidirectional I/O with internal pull-up, ADC1 analog input and PCINT1. |
| 37 | PA0 | bidirectional | Port A bit 0 bidirectional I/O with internal pull-up, ADC0 analog input and PCINT0. |
| 38 | VCC | power_in | Digital supply voltage. |
| 39 | GND | power_in | Ground. |
| 40 | PB0 | bidirectional | Port B bit 0 bidirectional I/O with internal pull-up, alternate functions PCINT8, XCK0 and T0. |
| 41 | PB1 | bidirectional | Port B bit 1 bidirectional I/O with internal pull-up, alternate functions PCINT9, CLKO and T1. |
| 42 | PB2 | bidirectional | Port B bit 2 bidirectional I/O with internal pull-up, alternate functions PCINT10, INT2 and AIN0. |
| 43 | PB3 | bidirectional | Port B bit 3 bidirectional I/O with internal pull-up, alternate functions PCINT11, OC0A and AIN1. |
| 44 | PB4 | bidirectional | Port B bit 4 bidirectional I/O with internal pull-up, alternate functions PCINT12, OC0B and SS. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | TQFP-44(10x10) |
| Category | Embedded Processors & Controllers |
| Pins | 44 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage (ATmega644V-10AU speed grade, 10 MHz) | VCC | 1.8 | | 5.5 | V | Ordering code ATmega644V-10AU, power supply 1.8V - 5.5V | 15 |
| Clock frequency, ATmega644V speed grade | | 0 | | 10 | MHz | 0 - 10MHz @ 2.7V - 5.5V | 1 |
| Clock frequency, ATmega644V speed grade | | 0 | | 4 | MHz | 0 - 4MHz @ 1.8V - 5.5V | 1 |
| Operating temperature (industrial) | | -40 | | 85 | °C | Industrial operational range | 15 |
| Flash write/erase endurance | | 10000 | | | cycles | Worst case temperature; guaranteed after last write cycle (note 1) | 1 |
| EEPROM write/erase endurance | | 100000 | | | cycles | Worst case temperature; guaranteed after last write cycle (note 1) | 1 |
| Data retention | | 20 | | | years | At 85°C | 1 |
| Data retention | | 100 | | | years | At 25°C | 1 |
## CAD (KiCad official)
- Symbol: `ATMEGA644V-10AU`
- Footprint: `Package_QFP:TQFP-44_10x10mm_P0.8mm`
- 3D model: TQFP-44(10x10) (KiCad packages3D, STEP)
- 3D model files: `atmega644v-10au-etched.step` / `atmega644v-10au-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `atmega644v-10au.step` / `atmega644v-10au.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Microchip Tech datasheet](https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/2593S.pdf) (23 pp, sha256 `40180a4e63a7d4d8`, retrieved 2026-10-30, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).
[Datasheet PDF](docs/atmega644v-10au-datasheet.pdf)