Microchip ATMEGA644-20AU, 8bit AVR Microcontroller, ATmega, 20MHz, 64 kB Flash, 44-Pin TQFP
- RS Stock No.:
- 177-3449
- Mfr. Part No.:
- ATMEGA644-20AU
- Brand:
- Microchip
640 In stock - FREE next working day delivery available
Price Each (In a Tray of 160)
£4.57
(exc. VAT)
£5.48
(inc. VAT)
| Units | Per unit | Per Tray* |
| 160 + | £4.57 | £731.20 |
| *price indicative | ||
- RS Stock No.:
- 177-3449
- Mfr. Part No.:
- ATMEGA644-20AU
- Brand:
- Microchip
Technical Reference
Legislation and Compliance
- COO (Country of Origin):
- TW
Product Details
Microchip Technology Microcontroller
The Microchip Technology ATMEGA family type, TQFP package, surface mount, 44-pin CMOS-processor 8-bit microcontroller. It has a maximum voltage rating of 5.5V. The microcontroller operates at a maximum speed of 20MHz and features 64kb ISP flash program memory, 4kb of internal SRAM and 2kb of EEPROM. It has a real-time counter, PWM, 8-channel 10-bit A/D converter and a watchdog timer (WDT). By executing powerful instructions in a single clock cycle, it achieves throughputs approaching 1MIPS per MHz allowing the system to optimize power consumption versus processing speed.
Features and Benefits
• 131 powerful instructions - Most single-clock cycle execution
• 32 ´ 8 general-purpose working registers
• 32 programmable I/O lines
• External and internal interrupt sources
• Fully static operation
• On-chip 2-cycle multiplier
• Operating temperature ranges between -40°C and 85°C
• Power-on reset and programmable brown-out detection
• Six PWM channels
• Six sleep modes- Idle, ADC noise reduction, power-save, power-down, standby and extended standby
• Three USART with fractional baud rate generator, auto baud, and start-of-frame detection
• Write/Erase cycles- 10,000 flash/100,000 EEPROM
• 32 ´ 8 general-purpose working registers
• 32 programmable I/O lines
• External and internal interrupt sources
• Fully static operation
• On-chip 2-cycle multiplier
• Operating temperature ranges between -40°C and 85°C
• Power-on reset and programmable brown-out detection
• Six PWM channels
• Six sleep modes- Idle, ADC noise reduction, power-save, power-down, standby and extended standby
• Three USART with fractional baud rate generator, auto baud, and start-of-frame detection
• Write/Erase cycles- 10,000 flash/100,000 EEPROM
Applications
• Embedded systems
• LCD monitors and TVs
• Mobile PC docking
• PC motherboards
• Portable hub boxes
• Printers and scanners
• LCD monitors and TVs
• Mobile PC docking
• PC motherboards
• Portable hub boxes
• Printers and scanners
Specifications
Attribute | Value |
|---|---|
| Family Name | ATmega |
| Package Type | TQFP |
| Mounting Type | Surface Mount |
| Pin Count | 44 |
| Device Core | AVR |
| Data Bus Width | 8bit |
| Program Memory Size | 64 kB |
| Maximum Frequency | 20MHz |
| RAM Size | 4 kB |
| USB Channels | 0 |
| Number of PWM Units | 1 |
| Number of SPI Channels | 1 |
| Number of CAN Channels | 0 |
| Number of I2C Channels | 1 |
| Number of UART Channels | 1 |
| Number of USART Channels | 1 |
| Typical Operating Supply Voltage | 5.5 (Maximum) V |
| Number of PCI Channels | 0 |
| Maximum Operating Temperature | +85 °C |
| Instruction Set Architecture | RISC |
| Number of Ethernet Channels | 0 |
| Dimensions | 10.1 x 10.1 x 1.05mm |
| Minimum Operating Temperature | -40 °C |
| Width | 10.1mm |
| Pulse Width Modulation | 1 (6 Channel) |
| Program Memory Type | Flash |
| Number of LIN Channels | 0 |
| Height | 1.05mm |
| Number of ADC Units | 1 |
| Maximum Number of Ethernet Channels | 0 |
| Length | 10.1mm |
| ADCs | 8 x 10 bit |
Related links
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