ATMEGA644P-A15AZ vs ATMEGA644P-20PU Comparison
Detailed side-by-side comparison of ATMEGA644P-A15AZ by Microchip Technology and ATMEGA644P-20PU 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-A15AZ - 64KB Flash 16MHz 5V AVR MCU | Microchip
ATMEGA644P-A15AZ NrndMicrochip Technology
ATMEGA644P-20PU - 8-bit AVR MCU 20MHz 64KB Flash | Microchip
ATMEGA644P-20PU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA644P-A15AZ | ATMEGA644P-20PU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | NRND | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.42 | $8.55 |
| Core Architecture | AVR enhanced RISC 8-bit | AVR 8-bit RISC |
| Program Memory (Flash) | 64 KB | — |
| SRAM | 4 KB | 4KB |
| EEPROM | 2 KB | 2KB |
| Maximum Clock Speed | 16 MHz | — |
| Supply Voltage (Vcc) | 4.5 V to 5.5 V | — |
| General-Purpose I/O Pins | 53 | — |
| ADC | 10-bit, 8 channels | — |
| USART | 2 | — |
| SPI | 1 | — |
| TWI (I2C) | 1 | — |
| PWM Channels | 6 | 6 |
| Timers/Counters | 2x 8-bit + 1x 16-bit | 3 |
| Operating Temperature | -40 C to +85 C (industrial) / -40 C to +105 C (automotive grade) | -40C to +85C |
| Package | 44-pin TQFP (10x10 mm) | 40-PDIP (0.600 inch width) |
| Mounting Type | Surface Mount | Through Hole |
| Automotive Qualification | AEC-Q100 (per AZ speed-grade suffix) | — |
| RoHS Status | Compliant | [DATA_NEEDED: RoHS compliance status] |
| Core Size | — | 8-bit |
| Max Clock Frequency | — | 20 MHz |
| Flash Memory | — | 64KB (32K x 16) |
| I/O Count | — | 32 |
| ADC Channels | — | 8 channels, 10-bit |
| Communication Interfaces | — | I2C, SPI, UART/USART (2 x USART) |
| Supply Voltage (max speed) | — | 5 V (4.5V to 5.5V) |
| Program Memory Type | — | ISP FLASH (read-while-write) |
| Technology | — | picoPower low-power CMOS |
| MSL Level | — | N/A (through-hole) |