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Microchip ATMEGA644P-20MU
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Compliance
Lead Free
Lead Free
Radiation Hardening
No
REACH SVHC
No SVHC
RoHS
Compliant
Dimensions
Height
950 µm
Length
7.1 mm
Width
7.1 mm
Physical
Case/Package
VQFN
Contact Plating
Tin
Mount
Surface Mount
Number of Pins
44
Supply Chain
Lifecycle Status
Production
Technical
Access Time
20 µs
Core Architecture
AVR
Data Bus Width
8 b
Density
512 kb
Frequency
20 MHz
Interface
950 µm
Max Frequency
20 MHz
Max Operating Temperature
85 °C
Max Supply Voltage
85 °C
Memory Size
64 kB
Memory Type
FLASH
Min Operating Temperature
-40 °C
Min Supply Voltage
-40 °C
Number of ADC Channels
8
Number of I/Os
32
Number of I2C Channels
1
Number of Programmable I/O
32
Number of PWM Channels
6
Number of SPI Channels
1
Number of Timers/Counters
3
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
RAM Size
4 kB
Termination
SMD/SMT
Watchdog Timer
Yes