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64KB 32K x 16 FLASH AVR 8-Bit Microcontroller AVR® ATmega Series ATMEGA644 44 Pin 20MHz 5V 44-TQFP
- Manufacturer: Microchip Technology
- NO: 536-ATMEGA644-20AU
- Package: 44-TQFP
- Datasheet:
- Stock: 8834
- Description: 64KB 32K x 16 FLASH AVR 8-Bit Microcontroller AVR® ATmega Series ATMEGA644 44 Pin 20MHz 5V 44-TQFP (Kg)
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| Parameters | |
|---|---|
| Factory Lead Time | 7 Weeks |
| Contact Plating | Tin |
| Mount | Surface Mount |
| Mounting Type | Surface Mount |
| Package / Case | 44-TQFP |
| Number of Pins | 44 |
| Operating Temperature | -40°C~85°C TA |
| Packaging | Tray |
| Published | 1997 |
| Series | AVR® ATmega |
| JESD-609 Code | e3 |
| Pbfree Code | yes |
| Part Status | Active |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| Number of Terminations | 44 |
| Additional Feature | ALSO OPERATES AT 2.7V SUPPLY AT 10 MHZ |
| Subcategory | Microcontrollers |
| Technology | CMOS |
| Terminal Position | QUAD |
| Terminal Form | GULL WING |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage | 5V |
| Frequency | 20MHz |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Base Part Number | ATMEGA644 |
| Number of Outputs | 32 |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Interface | 2-Wire, I2C, SPI, UART, USART |
| Memory Size | 64kB |
| Oscillator Type | Internal |
| Number of I/O | 32 |
| RAM Size | 4K x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.7V~5.5V |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Core Processor | AVR |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Program Memory Type | FLASH |
| Core Size | 8-Bit |
| Program Memory Size | 64KB 32K x 16 |
| Connectivity | I2C, SPI, UART/USART |
| Supply Current-Max | 9mA |
| Bit Size | 8 |
| Data Converter | A/D 8x10b |
| Watchdog Timer | Yes |
| Access Time | 20 μs |
| Has ADC | YES |
| DMA Channels | NO |
| Data Bus Width | 8b |
| Number of Timers/Counters | 3 |
| Density | 512 kb |
| EEPROM Size | 2K x 8 |
| Number of ADC Channels | 8 |
| Number of PWM Channels | 6 |
| Height | 1mm |
| Length | 10mm |
| Width | 10mm |
| Radiation Hardening | No |
| REACH SVHC | No SVHC |
| RoHS Status | ROHS3 Compliant |
| Lead Free | Lead Free |
ATMEGA644-20AU Description
The ATMEGA644-20AU is an 8-bit high-performance, low-power AVR RISC-based Microcontroller Unit.
ATMEGA644-20AU Features
Advanced RISC architecture
131 Powerful instructions
Fully static operation
Up to 20MIPS throughput at 20MHz
High endurance non-volatile memory segments
Optional boot code section with independent lock bits
In-system programming by an on-chip boot program
True Read-While-Write operation
Programming lock for software security
JTAG interface
Power-on reset and programmable brown-out detection
External and internal interrupt sources
ATMEGA644-20AU Applications
Automation & Process Control
