Ship from: HONGKONG
Date Code: Newest Date Code
Manufacturer lead time 6 weeks
| Internal Part Number | EIS-ATMEGA644-20AU | |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant | |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | |
| Production Status (Lifecycle) | In Production | |
| Condition | New & Unused, Original Sealed | |
| Product Training Modules | MCU Product Line Introduction megaAVR Introduction Software Framework (ASF) Example of Use Studio Introduction to Software Framework (ASF) Studio Development Environment Overview Part 1 | |
| Design Resources | Development Tool Selector | |
| Featured Product | Atmel - megaAVR Microcontrollers | |
| EDA / CAD Models | Download from Accelerated Designs | |
| Standard Package | 160 | |
| Category | Integrated Circuits (ICs) | |
| Family | Embedded - Microcontrollers | |
| Series | AVR® ATmega | |
| Packaging | Tray | |
| Core Processor | AVR | |
| Core Size | 8-Bit | |
| Speed | 20MHz | |
| Connectivity | I²C, SPI, UART/USART | |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT | |
| Number of I/O | 32 | |
| Program Memory Size | 64KB (32K x 16) | |
| Program Memory Type | FLASH | |
| EEPROM Size | 2K x 8 | |
| RAM Size | 4K x 8 | |
| Voltage - Supply (Vcc/Vdd) | 2.7 V ~ 5.5 V | |
| Data Converters | A/D 8x10b | |
| Oscillator Type | Internal | |
| Operating Temperature | -40°C ~ 85°C | |
| Package / Case | 44-TQFP | |
| Supplier Device Package | 44-TQFP (10x10) | |
| Weight | 0.001 KG | |
| Application | Email for details | |
| Alternative Part (Replacement) | ATMEGA644-20AU | |
| Related Links | ATMEGA6, ATMEGA644-20AU Datasheet, Atmel Distributor | |
![]() | L6995DTR | IC REG CTRLR BUCK PWM 20-TSSOP | datasheet.pdf | |
![]() | 111-43-628-41-001000 | CONN IC DIP SOCKET 28POS GOLD | datasheet.pdf | |
![]() | WR-20S-VF-N1 | CONN RECEPT 0.5MM 20POS SMD | datasheet.pdf | |
![]() | RCA36DTBI | CONN EDGECARD 72POS R/A .125 SLD | datasheet.pdf | |
![]() | PS2561D-1Y-V-H-A | OPTOISOLATOR 5KV TRANS 4DIP | datasheet.pdf | |
![]() | 0015911081 | CONN HEADER 8POS TIN SMD | datasheet.pdf | |
![]() | M55342H06B200ART5 | RES SMD 200 OHM 0.1% 0.15W 0705 | datasheet.pdf | |
![]() | 541419 BK002 | HOOK-UP STRAND 14AWG BLACK 500' | datasheet.pdf | |
![]() | 1876060000 | LSF-SMT 5.00/05/180 1.5 BK | datasheet.pdf | |
![]() | 861-13-020-30-002000 | Connector Receptacle 20 Position 0.039" (1.00mm) Gold Surface Mount | datasheet.pdf | |
![]() | STM6601GU2BDM6F | IC CTRLR ON/OFF P-P FIXED 12TDFN | datasheet.pdf | |
| CMHZ5247B TR | DIODE ZENER 17V 250MW SOD123 | datasheet.pdf |