ATMEGA644P-A15MZ vs ATMEGA644P-20MQ Comparison
Detailed side-by-side comparison of ATMEGA644P-A15MZ by Microchip Technology and ATMEGA644P-20MQ by Microchip Technology. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Microchip Technology
ATMEGA644P-A15MZ - 64KB AVR MCU, 16MHz, VQFN-44 | Microchip
ATMEGA644P-A15MZ NrndMicrochip Technology
ATMEGA644P-20MQ - 8-bit AVR MCU 64KB 20MHz VQFN-44 | Microchip
ATMEGA644P-20MQ NrndSpecification Comparison
| Parameter | ATMEGA644P-A15MZ | ATMEGA644P-20MQ |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Nrnd | Nrnd |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.00 | $2.48 |
| Core Processor | AVR | β |
| Core Size | 8-Bit | β |
| Max Clock Speed | 16 MHz | β |
| Flash Memory | 64 KB (32K x 16) | β |
| SRAM | 4 KB | 4 KB (4,096 bytes) |
| EEPROM | 2 KB | 2 KB (2,048 bytes) |
| Supply Voltage | 4.5 V to 5.5 V | β |
| Number of GPIO | 32 | β |
| USART | 2 | β |
| ADC Resolution | 10-bit | β |
| ADC Channels | 8 | β |
| Connectivity | I2C (TWI), SPI, UART/USART | β |
| Timers | 3 timers/counters with compare modes and PWM | β |
| Throughput | 16 MIPS at 16 MHz | Up to 20 MIPS (1 MIPS per MHz) |
| Package | 44-VQFN (7x7 mm) | 44-VQFN (7x7 mm) with exposed pad |
| Mounting Type | Surface Mount | Surface Mount |
| Qualification | AEC-Q100 (automotive) | β |
| Operating Temperature Range | [DATA_NEEDED: Operating Temperature Range] | β |
| Packaging | Tray | Tape & Reel (TR) |
| Core Architecture | β | AVR 8-bit RISC |
| CPU Speed | β | 20 MHz |
| Flash Program Memory | β | 64 KB (32K x 16) |
| Operating Voltage | β | 5 V |
| Number of I/O | β | 32 |
| Digital Communication Peripherals | β | 2 UART |
| Oscillator Type | β | Internal |
| Instructions | β | 131 powerful instructions, most single-cycle |
| Temperature Grade | β | Industrial, extended temperature |
| Technology Feature | β | picoPower low-power, green/RoHS |
| Programming | β | ICSP via 2 I/O pins + reset, MPLAB SNAP compatible |
| Lifecycle | β | Mature; NRND - replaced by ATmega644PA |