0
+86-755-83210559 ext. 811
TOP
Contact Us
SalesDept@heisener.com +86-755-83210559 ext. 811
Language Translation
  • • English
  • • Español
  • • Deutsch
  • • Français
  • • Italiano
  • • Nederlands
  • • Português
  • • русский язык
  • • 日本語
  • • 한국어
  • • 简体中文
  • • 繁體中文

* Please refer to the English Version as our Official Version.

Change Country

If your country is not listed, please select International as your region.

  • International
Americas
  • Argentina
  • Brasil
  • Canada
  • Chile
  • Colombia
  • Costa Rica
  • Dominican Republic
  • Ecuador
  • Guatemala
  • Honduras
  • Mexico
  • Peru
  • Puerto Rico
  • United States
  • Uruguay
  • Venezuela
Asia/Pacific
  • Australia
  • China
  • Hong Kong
  • Indonesia
  • Israel
  • India
  • Japan
  • Korea, Republic of
  • Malaysia
  • New Zealand
  • Philippines
  • Singapore
  • Thailand
  • Taiwan
  • Vietnam
Europe
  • Austria
  • Belgium
  • Bulgaria
  • Switzerland
  • Czech Republic
  • Germany
  • Denmark
  • Estonia
  • Spain
  • Finland
  • France
  • United Kingdom
  • Greece
  • Croatia
  • Hungary
  • Ireland
  • Italy
  • Netherlands
  • Norway
  • Poland
  • Portugal
  • Romania
  • Russian Federation
  • Sweden
  • Slovakia
  • Turkey

ATMEGA644-20AU

hot ATMEGA644-20AU

ATMEGA644-20AU

For Reference Only

Part Number ATMEGA644-20AU
Manufacturer Microchip Technology
Description IC MCU 8BIT 64KB FLASH 44TQFP
Datasheet ATMEGA644-20AU Datasheet
Package 44-TQFP
In Stock 5812 piece(s)
Unit Price $ 5.35 *
Please request a real-time quote with our sales team. The unit price would influenced by the quantity requested and the supply sources. Thank you!
Lead Time Can Ship Immediately
Estimated Delivery Time Dec 13 - Dec 18 (Choose Expedited Shipping)
Winter Hot Sale

* Free Shipping * Up to $100 Discount

Winter Hot Sale

Request for Quotation

ATMEGA644-20AU

Quantity
  • We are offering ATMEGA644-20AU for competitive price in the global market, please send us a quota request for pricing. Thank you!
  • To process your RFQ, please add ATMEGA644-20AU with quantity into BOM. Heisener.com does NOT require any registration to request a quote of ATMEGA644-20AU.
  • To learn about the specification of ATMEGA644-20AU, please search the datasheet by clicking the link above. If you couldn't find the correct datasheet, please refer to the manufacturer's official datasheet.
Payment Methods
Delivery Services

Do you have any question about ATMEGA644-20AU?

+86-755-83210559 ext. 811 SalesDept@heisener.com heisener007 2354944915 Send Message

Certified Quality

Heisener's commitment to quality has shaped our processes for sourcing, testing, shipping, and every step in between. This foundation underlies each component we sell.

ISO9001:2015, ICAS, IAF, UKAS

View the Certificates

ATMEGA644-20AU Specifications

ManufacturerMicrochip Technology
CategoryIntegrated Circuits (ICs) - Embedded - Microcontrollers
Datasheet ATMEGA644-20AU Datasheet
Package44-TQFP
SeriesAVR? ATmega
Core ProcessorAVR
Core Size8-Bit
Speed20MHz
ConnectivityI2C, SPI, UART/USART
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
Number of I/O32
Program Memory Size64KB (32K x 16)
Program Memory TypeFLASH
EEPROM Size2K x 8
RAM Size4K x 8
Voltage - Supply (Vcc/Vdd)2.7 V ~ 5.5 V
Data ConvertersA/D 8x10b
Oscillator TypeInternal
Operating Temperature-40°C ~ 85°C (TA)
Package / Case44-TQFP
Supplier Device Package44-TQFP (10x10)

ATMEGA644-20AU Datasheet

Page 1

Page 2

8-bit Atmel Microcontroller with 64K Bytes In-System Programmable Flash ATmega644/V Summary 2593OS–AVR–02/12Features • High-performance, Low-power Atmel® AVR® 8-bit Microcontroller • Advanced RISC Architecture – 131 Powerful Instructions – Most Single-clock Cycle Execution – 32 × 8 General Purpose Working Registers – Fully Static Operation – Up to 20 MIPS Throughput at 20MHz • High Endurance Non-volatile Memory segments – 64 Kbytes of In-System Self-programmable Flash program memory – 2 Kbytes EEPROM – 4 Kbytes Internal SRAM – Write/Erase cyles: 10,000 Flash/100,000 EEPROM(1)(3) – Data retention: 20 years at 85°C/100 years at 25°C(2)(3) – Optional Boot Code Section with Independent Lock Bits In-System Programming by On-chip Boot Program True Read-While-Write Operation – Programming Lock for Software Security • JTAG (IEEE std. 1149.1 Compliant) Interface – Boundary-scan Capabilities According to the JTAG Standard – Extensive On-chip Debug Support – Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG Interface • Peripheral Features – Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes – One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode – Real Time Counter with Separate Oscillator – Six PWM Channels – 8-channel, 10-bit ADC Differential mode with selectable gain at 1x, 10x or 200x – Byte-oriented Two-wire Serial Interface – One Programmable Serial USART – Master/Slave SPI Serial Interface – Programmable Watchdog Timer with Separate On-chip Oscillator – On-chip Analog Comparator – Interrupt and Wake-up on Pin Change • Special Microcontroller Features – Power-on Reset and Programmable Brown-out Detection – Internal Calibrated RC Oscillator – External and Internal Interrupt Sources – Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby and Extended Standby • I/O and Packages – 32 Programmable I/O Lines – 40-pin PDIP, 44-lead TQFP, and 44-pad QFN/MLF • Speed Grades – ATmega644V: 0 - 4MHz @ 1.8V - 5.5V, 0 - 10MHz @ 2.7V - 5.5V – ATmega644: 0 - 10MHz @ 2.7V - 5.5V, 0 - 20MHz @ 4.5V - 5.5V • Power Consumption at MHz, 3V, 25⋅C – Active: 240µA @ 1.8V, 1MHz – Power-down Mode: 0.1µA @ 1.8V Notes: 1. Worst case temperature. Guaranteed after last write cycle. 2. Failure rate less than 1 ppm. 3. Characterized through accelerated tests.

Page 3

1. Pin Configurations Figure 1-1. Pinout ATmega644 Note: The large center pad underneath the QFN/MLF package should be soldered to ground on the board to ensure good mechanical stability. (PCINT8/XCK0/T0) PB0 (PCINT9/CLKO/T1) PB1 (PCINT10/INT2/AIN0) PB2 (PCINT11/OC0A/AIN1) PB3 (PCINT12/OC0B/SS) PB4 (PCINT13/MOSI) PB5 (PCINT14/MISO) PB6 (PCINT15/SCK) PB7 RESET VCC GND XTAL2 XTAL1 (PCINT24/RXD0) PD0 (PCINT25/TXD0) PD1 (PCINT26/INT0) PD2 (PCINT27/INT1) PD3 (PCINT28/OC1B) PD4 (PCINT29/OC1A) PD5 (PCINT30/OC2B/ICP) PD6 PA0 (ADC0/PCINT0) PA1 (ADC1/PCINT1) PA2 (ADC2/PCINT2) PA3 (ADC3/PCINT3) PA4 (ADC4/PCINT4) PA5 (ADC5/PCINT5) PA6 (ADC6/PCINT6) PA7 (ADC7/PCINT7) AREF GND AVCC PC7 (TOSC2/PCINT23) PC6 (TOSC1/PCINT22) PC5 (TDI/PCINT21) PC4 (TDO/PCINT20) PC3 (TMS/PCINT19) PC2 (TCK/PCINT18) PC1 (SDA/PCINT17) PC0 (SCL/PCINT16) PD7 (OC2A/PCINT31) PA4 (ADC4/PCINT4) PA5 (ADC5/PCINT5) PA6 (ADC6/PCINT6) PA7 (ADC7/PCINT7) AREF GND AVCC PC7 (TOSC2/PCINT23) PC6 (TOSC1/PCINT22) PC5 (TDI/PCINT21) PC4 (TDO/PCINT20) (PCINT13/MOSI) PB5 (PCINT14/MISO) PB6 (PCINT15/SCK) PB7 RESET VCC GND XTAL2 XTAL1 (PCINT24/RXD0) PD0 (PCINT25/TXD0) PD1 (PCINT26/INT0) PD2 (P C IN T 2 7 /I N T 1 ) P D 3 (P C IN T 2 8 /O C 1 B ) P D 4 (P C IN T 2 9 /O C 1 A ) P D 5 (P C IN T 3 0 /O C 2 B /I C P ) P D 6 (P C IN T 3 1 /O C 2 A ) P D 7 V C C G N D (P C IN T 1 6 /S C L ) P C 0 (P C IN T 1 7 /S D A ) P C 1 (P C IN T 1 8 /T C K ) P C 2 (P C IN T 1 9 /T M S ) P C 3 P B 4 (S S /O C 0 B /P C IN T 1 2 ) P B 3 (A IN 1 /O C 0 A /P C IN T 1 1 ) P B 2 (A IN 0 /I N T 2 /P C IN T 1 0 ) P B 1 (T 1 /C L K O /P C IN T 9 ) P B 0 (X C K 0 /T 0 /P C IN T 8 ) G N D V C C P A 0 (A D C 0 /P C IN T 0 ) P A 1 (A D C 1 /P C IN T 1 ) P A 2 (A D C 2 /P C IN T 2 ) P A 3 (A D C 3 /P C IN T 3 ) PDIP TQFP/QFN/MLF2 2593OS–AVR–02/12 ATmega644

Page 4

ATmega6441.1 Disclaimer Typical values contained in this datasheet are based on simulations and characterization of other AVR microcontrollers manufactured on the same process technology. Min and Max values will be available after the device is characterized. 2. Overview The ATmega644 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega644 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed. 2.1 Block Diagram Figure 2-1. Block Diagram CPU GND VCC RESET Power Supervision POR / BOD & RESET Watchdog Oscillator Watchdog Timer Oscillator Circuits / Clock Generation XTAL1 XTAL2 PORT A (8) PORT D (8) PD7..0 PORT C (8) PC7..0 TWI SPIEEPROM JTAG 8 bit T/C 0 8 bit T/C 2 16 bit T/C 1 SRAMFLASH USART 0 Internal Bandgap reference Analog Comparator A/D Converter PA7..0 PORT B (8) PB7..03 2593OS–AVR–02/12

Page 5

The AVR core combines a rich instruction set with 32 general purpose working registers. All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs up to ten times faster than con- ventional CISC microcontrollers. The ATmega644 provides the following features: 64 Kbytes of In-System Programmable Flash with Read-While-Write capabilities, 2 Kbytes EEPROM, 4 Kbytes SRAM, 32 general purpose I/O lines, 32 general purpose working registers, Real Time Counter (RTC), three flexible Timer/Counters with compare modes and PWM, 2 USARTs, a byte oriented 2-wire Serial Inter- face, a 8-channel, 10-bit ADC with optional differential input stage with programmable gain, programmable Watchdog Timer with Internal Oscillator, an SPI serial port, IEEE std. 1149.1 compliant JTAG test interface, also used for accessing the On-chip Debug system and program- ming and six software selectable power saving modes. The Idle mode stops the CPU while allowing the SRAM, Timer/Counters, SPI port, and interrupt system to continue functioning. The Power-down mode saves the register contents but freezes the Oscillator, disabling all other chip functions until the next interrupt or Hardware Reset. In Power-save mode, the asynchronous timer continues to run, allowing the user to maintain a timer base while the rest of the device is sleeping. The ADC Noise Reduction mode stops the CPU and all I/O modules except Asynchro- nous Timer and ADC, to minimize switching noise during ADC conversions. In Standby mode, the Crystal/Resonator Oscillator is running while the rest of the device is sleeping. This allows very fast start-up combined with low power consumption. In Extended Standby mode, both the main Oscillator and the Asynchronous Timer continue to run. The device is manufactured using Atmel’s high-density nonvolatile memory technology. The On- chip ISP Flash allows the program memory to be reprogrammed in-system through an SPI serial interface, by a conventional nonvolatile memory programmer, or by an On-chip Boot program running on the AVR core. The boot program can use any interface to download the application program in the application Flash memory. Software in the Boot Flash section will continue to run while the Application Flash section is updated, providing true Read-While-Write operation. By combining an 8-bit RISC CPU with In-System Self-Programmable Flash on a monolithic chip, the Atmel ATmega644 is a powerful microcontroller that provides a highly flexible and cost effec- tive solution to many embedded control applications. The ATmega644 AVR is supported with a full suite of program and system development tools including: C compilers, macro assemblers, program debugger/simulators, in-circuit emulators, and evaluation kits. 2.2 Pin Descriptions 2.2.1 VCC Digital supply voltage. 2.2.2 GND Ground. 2.2.3 Port A (PA7:PA0) Port A serves as analog inputs to the Analog-to-digital Converter. Port A also serves as an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port A output buffers have symmetrical drive characteristics with both high sink4 2593OS–AVR–02/12 ATmega644

Page 6

ATmega644and source capability. As inputs, Port A pins that are externally pulled low will source current if the pull-up resistors are activated. The Port A pins are tri-stated when a reset condition becomes active, even if the clock is not running. Port A also serves the functions of various special features of the ATmega644 as listed on page 73. 2.2.4 Port B (PB7:PB0) Port B is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port B output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port B pins that are externally pulled low will source current if the pull-up resistors are activated. The Port B pins are tri-stated when a reset condition becomes active, even if the clock is not running. Port B also serves the functions of various special features of the ATmega644 as listed on page 75. 2.2.5 Port C (PC7:PC0) Port C is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port C output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port C pins that are externally pulled low will source current if the pull-up resistors are activated. The Port C pins are tri-stated when a reset condition becomes active, even if the clock is not running. Port C also serves the functions of the JTAG interface, along with special features of the ATmega644 as listed on page 78. 2.2.6 Port D (PD7:PD0) Port D is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port D output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port D pins that are externally pulled low will source current if the pull-up resistors are activated. The Port D pins are tri-stated when a reset condition becomes active, even if the clock is not running. Port D also serves the functions of various special features of the ATmega644 as listed on page 80. 2.2.7 RESET Reset input. A low level on this pin for longer than the minimum pulse length will generate a reset, even if the clock is not running. The minimum pulse length is given in ”System and Reset Characteristics” on page 320. Shorter pulses are not guaranteed to generate a reset. 2.2.8 XTAL1 Input to the inverting Oscillator amplifier and input to the internal clock operating circuit. 2.2.9 XTAL2 Output from the inverting Oscillator amplifier.5 2593OS–AVR–02/12

Page 7

2.2.10 AVCC AVCC is the supply voltage pin for Port F and the Analog-to-digital Converter. It should be exter- nally connected to VCC, even if the ADC is not used. If the ADC is used, it should be connected to VCC through a low-pass filter. 2.2.11 AREF This is the analog reference pin for the Analog-to-digital Converter.6 2593OS–AVR–02/12 ATmega644

Page 8

ATmega6443. Resources A comprehensive set of development tools, application notes and datasheetsare available for download on http://www.atmel.com/avr.7 2593OS–AVR–02/12

Page 9

4. Register Summary Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Page (0xFF) Reserved - - - - - - - (0xFE) Reserved - - - - - - - - (0xFD) Reserved - - - - - - - - (0xFC) Reserved - - - - - - - - (0xFB) Reserved - - - - - - - (0xFA) Reserved - - - - - - - - (0xF9) Reserved - - - - - - - (0xF8) Reserved - - - - - - - - (0xF7) Reserved - - - - - - - - (0xF6) Reserved - - - - - - - - (0xF5) Reserved - - - - - - - (0xF4) Reserved - - - - - - - - (0xF3) Reserved - - - - - - - - (0xF2) Reserved - - - - - - - - (0xF1) Reserved - - - - - - - (0xF0) Reserved - - - - - - - - (0xEF) Reserved - - - - - - - (0xEE) Reserved - - - - - - - - (0xED) Reserved - - - - - - - - (0xEC) Reserved - - - - - - - - (0xEB) Reserved - - - - - - - (0xEA) Reserved - - - - - - - - (0xE9) Reserved - - - - - - - - (0xE8) Reserved - - - - - - - - (0xE7) Reserved - - - - - - - (0xE6) Reserved - - - - - - - - (0xE5) Reserved - - - - - - - - (0xE4) Reserved - - - - - - - - (0xE3) Reserved - - - - - - - (0xE2) Reserved - - - - - - - - (0xE1) Reserved - - - - - - - (0xE0) Reserved - - - - - - - (0xDF) Reserved - - - - - - - - (0xDE) Reserved - - - - - - - - (0xDD) Reserved - - - - - - - - (0xDC) Reserved - - - - - - - (0xDB) Reserved - - - - - - - - (0xDA) Reserved - - - - - - - - (0xD9) Reserved - - - - - - - - (0xD8) Reserved - - - - - - - - (0xD7) Reserved - - - - - - - - (0xD6) Reserved - - - - - - - - (0xD5) Reserved - - - - - - - - (0xD4) Reserved - - - - - - - - (0xD3) Reserved - - - - - - - - (0xD2) Reserved - - - - - - - - (0xD1) Reserved - - - - - - - - (0xD0) Reserved - - - - - - - - (0xCF) Reserved - - - - - - - - (0xCE) Reserved - - - - - - - - (0xCD) Reserved - - - - - - - - (0xCC) Reserved - - - - - - - - (0xCB) Reserved - - - - - - - - (0xCA) Reserved - - - - - - - - (0xC9) Reserved - - - - - - - - (0xC8) Reserved - - - - - - - - (0xC7) Reserved - - - - - - - - (0xC6) UDR0 USART0 I/O Data Register 182 (0xC5) UBRR0H - - - - USART0 Baud Rate Register High Byte 186/198 (0xC4) UBRR0L USART0 Baud Rate Register Low Byte 186/198 (0xC3) Reserved - - - - - - - - (0xC2) UCSR0C UMSEL01 UMSEL00 UPM01 UPM00 USBS0 UCSZ01 UCSZ00 UCPOL0 184/197 (0xC1) UCSR0B RXCIE0 TXCIE0 UDRIE0 RXEN0 TXEN0 UCSZ02 RXB80 TXB80 183/197 (0xC0) UCSR0A RXC0 TXC0 UDRE0 FE0 DOR0 UPE0 U2X0 MPCM0 182/1968 2593OS–AVR–02/12 ATmega644

Page 10

ATmega644(0xBF) Reserved - - - - - - - - (0xBE) Reserved - - - - - - - - (0xBD) TWAMR TWAM6 TWAM5 TWAM4 TWAM3 TWAM2 TWAM1 TWAM0 - 228 (0xBC) TWCR TWINT TWEA TWSTA TWSTO TWWC TWEN - TWIE 225 (0xBB) TWDR 2-wire Serial Interface Data Register 227 (0xBA) TWAR TWA6 TWA5 TWA4 TWA3 TWA2 TWA1 TWA0 TWGCE 228 (0xB9) TWSR TWS7 TWS6 TWS5 TWS4 TWS3 - TWPS1 TWPS0 227 (0xB8) TWBR 2-wire Serial Interface Bit Rate Register 225 (0xB7) Reserved - - - - - - - - (0xB6) ASSR - EXCLK AS2 TCN2UB OCR2AUB OCR2BUB TCR2AUB TCR2BUB 150 (0xB5) Reserved - - - - - - - - (0xB4) OCR2B Timer/Counter2 Output Compare Register B 150 (0xB3) OCR2A Timer/Counter2 Output Compare Register A 150 (0xB2) TCNT2 Timer/Counter2 (8 Bit) 150 (0xB1) TCCR2B FOC2A FOC2B - - WGM22 CS22 CS21 CS20 149 (0xB0) TCCR2A COM2A1 COM2A0 COM2B1 COM2B0 - - WGM21 WGM20 146 (0xAF) Reserved - - - - - - - - (0xAE) Reserved - - - - - - - - (0xAD) Reserved - - - - - - - - (0xAC) Reserved - - - - - - - - (0xAB) Reserved - - - - - - - - (0xAA) Reserved - - - - - - - - (0xA9) Reserved - - - - - - - - (0xA8) Reserved - - - - - - - - (0xA7) Reserved - - - - - - - - (0xA6) Reserved - - - - - - - - (0xA5) Reserved - - - - - - - - (0xA4) Reserved - - - - - - - - (0xA3) Reserved - - - - - - - - (0xA2) Reserved - - - - - - - - (0xA1) Reserved - - - - - - - - (0xA0) Reserved - - - - - - - - (0x9F) Reserved - - - - - - - - (0x9E) Reserved - - - - - - - - (0x9D) Reserved - - - - - - - - (0x9C) Reserved - - - - - - - - (0x9B) Reserved - - - - - - - - (0x9A) Reserved - - - - - - - - (0x99) Reserved - - - - - - - - (0x98) Reserved - - - - - - - - (0x97) Reserved - - - - - - - - (0x96) Reserved - - - - - - - - (0x95) Reserved - - - - - - - - (0x94) Reserved - - - - - - - - (0x93) Reserved - - - - - - - - (0x92) Reserved - - - - - - - - (0x91) Reserved - - - - - - - - (0x90) Reserved - - - - - - - - (0x8F) Reserved - - - - - - - - (0x8E) Reserved - - - - - - - - (0x8D) Reserved - - - - - - - - (0x8C) Reserved - - - - - - - - (0x8B) OCR1BH Timer/Counter1 - Output Compare Register B High Byte 129 (0x8A) OCR1BL Timer/Counter1 - Output Compare Register B Low Byte 129 (0x89) OCR1AH Timer/Counter1 - Output Compare Register A High Byte 129 (0x88) OCR1AL Timer/Counter1 - Output Compare Register A Low Byte 129 (0x87) ICR1H Timer/Counter1 - Input Capture Register High Byte 130 (0x86) ICR1L Timer/Counter1 - Input Capture Register Low Byte 130 (0x85) TCNT1H Timer/Counter1 - Counter Register High Byte 129 (0x84) TCNT1L Timer/Counter1 - Counter Register Low Byte 129 (0x83) Reserved - - - - - - - - (0x82) TCCR1C FOC1A FOC1B - - - - - - 128 (0x81) TCCR1B ICNC1 ICES1 - WGM13 WGM12 CS12 CS11 CS10 127 (0x80) TCCR1A COM1A1 COM1A0 COM1B1 COM1B0 - - WGM11 WGM10 125 (0x7F) DIDR1 - - - - - - AIN1D AIN0D 232 (0x7E) DIDR0 ADC7D ADC6D ADC5D ADC4D ADC3D ADC2D ADC1D ADC0D 252 Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Page9 2593OS–AVR–02/12

ATMEGA644-20AU Guarantees

Service Guarantee

Service Guarantees

We guarantee 100% customer satisfaction.

Our experienced sales team and tech support team back our services to satisfy all our customers.

Quality Guarantee

Quality Guarantees

We provide 90 days warranty.

If the items you received were not in perfect quality, we would be responsible for your refund or replacement, but the items must be returned in their original condition.

ATMEGA644-20AU Related Products

hotATMEGA644-20AU DSC1001DE1-027.0000T Microchip Technology, OSC MEMS 27.000MHZ CMOS SMD, 4-SMD, No Lead, AVR? ATmega View
hotATMEGA644-20AU AT28C256-15SA Microchip Technology, IC EEPROM 256KBIT 150NS 28SOIC, 28-SOIC (0.295", 7.50mm Width), AVR? ATmega View
hotATMEGA644-20AU SY100S302JZ-TR Microchip Technology, IC GATE OR/NOR QUINT 2IN 28-PLCC, 28-LCC (J-Lead), AVR? ATmega View
hotATMEGA644-20AU MCP201T-I/SN Microchip Technology, IC LIN TXRX ON-BOARD VREG 8SOIC, 8-SOIC (0.154", 3.90mm Width), AVR? ATmega View
hotATMEGA644-20AU ATMEGA16HVA-4TU Microchip Technology, IC MCU 8BIT 16KB FLASH 28TSOP, 28-TSSOP (0.465", 11.80mm Width), AVR? ATmega View
hotATMEGA644-20AU ATMEGA325V-8MI Microchip Technology, IC MCU 8BIT 32KB FLASH 64QFN, 64-VFQFN Exposed Pad, AVR? ATmega View
hotATMEGA644-20AU ATMEGA8535L-8MC Microchip Technology, IC MCU 8BIT 8KB FLASH 44VQFN, 44-VFQFN Exposed Pad, AVR? ATmega View
hotATMEGA644-20AU ATMEGA8515-16PC Microchip Technology, IC MCU 8BIT 8KB FLASH 40DIP, 40-DIP (0.600", 15.24mm), AVR? ATmega View
hotATMEGA644-20AU ATMEGA103-6AI Microchip Technology, IC MCU 8BIT 128KB FLASH 64TQFP, 64-TQFP, AVR? ATmega View
hotATMEGA644-20AU PIC17C43-25/PQ Microchip Technology, IC MCU 8BIT 8KB OTP 44MQFP, 44-QFP, AVR? ATmega View
hotATMEGA644-20AU ATMEGA645P-AU Microchip Technology, IC MCU 8BIT 64KB FLASH 64TQFP, 64-TQFP, AVR? ATmega View
hotATMEGA644-20AU ATMEGA644PA-ANR Microchip Technology, IC MCU 8BIT 64KB FLASH 44TQFP, 44-TQFP, AVR? ATmega View

ATMEGA644-20AU Tags

  • ATMEGA644-20AU
  • ATMEGA644-20AU PDF
  • ATMEGA644-20AU datasheet
  • ATMEGA644-20AU specification
  • ATMEGA644-20AU image
  • Microchip Technology
  • Microchip Technology ATMEGA644-20AU
  • buy ATMEGA644-20AU
  • ATMEGA644-20AU price
  • ATMEGA644-20AU distributor
  • ATMEGA644-20AU supplier
  • ATMEGA644-20AU wholesales

ATMEGA644-20AU is Available in