Microchip Technology ATMEGA644P-20PU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $7.12 | $7.12 |
| 15+ | $6.89 | $103.35 |
| 25+ | $6.74 | $168.50 |
| 50+ | $6.37 | $318.50 |
| 100+ | $5.62 | $562.00 |
| N+ | $1.12 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATmega |
| Packaging | Tube | |
| 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) | 2.7V ~ 5.5V |
| Data Converters | A/D 8x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Through Hole |
| Supplier Device Package | 40-PDIP |
| Package / Case | 40-DIP (0.600", 15.24mm) |
| ROHS |  |
The Microchip ATMEGA644P-20PU is a low-power 8-bit AVR microcontroller with 64KB flash and 4KB SRAM. It runs at 20MHz and supports 2.7V to 5.5V supply. The picoPower feature minimizes energy consumption, making it ideal for battery-operated devices. Housed in a 40-pin DIP, it includes PWM, WDT, and brown-out detection for robust embedded designs.
- picoPower technology: Reduces power consumption for energy-efficient designs.
- High memory capacity: 64KB flash and 4KB SRAM support complex firmware.
- Flexible voltage: 2.7V to 5.5V operation suits various power sources.
- Reliable operation: Brown-out reset and watchdog timer enhance system stability.
Battery-Powered Sensor Nodes
The picoPower technology reduces idle current, extending battery life in wireless sensor networks while the 20MHz core handles data processing.
HVAC Control Systems
With 64KB flash and 4KB SRAM, it can manage multi-zone climate control algorithms and drive actuators via PWM.
Portable Instrumentation
The wide voltage range and low-power sleep modes make it suitable for handheld multimeters and data loggers.
Automotive Body Electronics
Industrial temperature range and robust reset circuitry ensure reliable operation in car body control modules.
Industrial Process Controllers
Its rich timer set and PWM outputs allow precise control of valves and pumps in chemical processing.
Security Systems
Fast wake-up from sleep and multiple I/O pins support motion detectors and alarm panels.
- Q: What is the difference between ATMEGA644P and ATMEGA644?
- A: The P version features picoPower technology for lower power consumption, while maintaining the same 64KB flash and 20MHz speed.
- Q: What is the operating voltage range?
- A: It operates from 2.7V to 5.5V, making it flexible for battery or 5V logic systems.
- Q: Does it have a brown-out detector?
- A: Yes, it includes brown-out detection, power-on reset, PWM, and watchdog timer.
- Q: What package is available?
- A: It is offered in a 40-pin PDIP package (0.600" width) for through-hole assembly.
ATMEGA644P-20PU.pdf
- Q: What is the difference between ATMEGA644P and ATMEGA644?
- A: The P version features picoPower technology for lower power consumption, while maintaining the same 64KB flash and 20MHz speed.
- Q: What is the operating voltage range?
- A: It operates from 2.7V to 5.5V, making it flexible for battery or 5V logic systems.
- Q: Does it have a brown-out detector?
- A: Yes, it includes brown-out detection, power-on reset, PWM, and watchdog timer.
- Q: What package is available?
- A: It is offered in a 40-pin PDIP package (0.600" width) for through-hole assembly.
