| Model Number |
| PIC16F1938-E/ML |
ATMEGA644P-15MT1 |
| Model Name |
| Microchip Tech PIC16F1938-E/ML |
Microchip Tech ATMEGA644P-15MT1 |
| Category |
| Microcontroller Units (MCUs/MPUs/SOCs) |
Microcontroller Units (MCUs/MPUs/SOCs) |
| Brand |
| Microchip Tech |
Microchip Tech |
| Description |
| 28KB 1.8V~5.5V PIC 32MHz FLASH 25 QFN-28-EP(6x6) Microcontroller Units (MCUs/MPUs/SOCs) ROHS |
64KB 2.7V~5.5V AVR 16MHz 32 VQFN-44(7x7) Microcontroller Units (MCUs/MPUs/SOCs) ROHS |
| RoHS |
| Lead free / RoHS Compliant |
Lead free / RoHS Compliant |
| Unit |
| Piece |
Piece |
| Weight: |
| 1.000 grams / 0.035274 oz |
1.000 grams / 0.035274 oz |
| Package / Case |
| QFN-28-EP(6x6) |
VQFN-44(7x7) |
| Package / Arrange |
| Tube-packed |
Tape & Reel (TR) |
| Battery |
| No |
No |
| ECCN |
| 3A991A2 |
EAR99 |
| Infrared Data Association |
| - |
N/A |
| Low-Voltage Detect |
| Yes |
Yes |
| CCP Capture/Compare |
| - |
N/A |
| LCD Module |
| Yes |
N/A |
| Program Storage Size |
| 28KB |
64KB |
| Internal Comparator |
| - |
N/A |
| communication protocol |
| - |
N/A |
| Operating Temperature Range |
| -40℃~+125℃ |
-40℃~+105℃ |
| Operating Voltage Range |
| 1.8V~5.5V |
2.7V~5.5V |
| Watchdog |
| Yes |
Yes |
| CPU Core |
| PIC |
AVR |
| Peripheral/Function |
| LCD/LED Driver |
N/A |
| Real-Time Clock |
| - |
N/A |
| Secure Digital Input and Output |
| - |
N/A |
| Universal Serial Bus |
| - |
N/A |
| Direct Memory Access |
| - |
N/A |
| EEPROM |
| 256Byte |
N/A |
| PWM (Bit) |
| - |
N/A |
| Internal Oscillator |
| Yes |
Yes |
| CPU Maximum Speed |
| 32MHz |
16MHz |
| DAC (Bit) |
| - |
N/A |
| Program Memory Type |
| FLASH |
N/A |
| ADC (Bit) |
| 10bit |
10bit |
| GPIO Ports Number |
| 25 |
32 |
