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