ATMEGA644P-A15AZ vs ATMEGA644PA-AU Comparison
Detailed side-by-side comparison of ATMEGA644P-A15AZ by Microchip Technology and ATMEGA644PA-AU 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
ATMEGA644PA-AU - 8-bit AVR MCU, 20MHz, 64KB Flash | Microchip
ATMEGA644PA-AU β ActiveSpecification Comparison
| Parameter | ATMEGA644P-A15AZ | ATMEGA644PA-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Nrnd | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.85 | $2.49 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Flash Memory | 64 KB | 64 KB (32K x 16), ISP, read-while-write |
| SRAM | 4 KB | 4 KB |
| EEPROM | 2 KB | 2 KB |
| Maximum Clock Frequency | 16 MHz | 20 MHz |
| Supply Voltage Range | 4.5 V to 5.5 V | β |
| I/O Ports / Lines | 53 I/O | β |
| Data Bus Width | 8 bit | β |
| Program Memory Type | Flash | β |
| USARTs | 2 | β |
| Package | 44-TQFP | 44-TQFP (10x10 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Product Family | ATmega644P (AVR ATmega) | β |
| Lifecycle Stage | Active (mature product, NRND per Microchip; replaced by ATmega644PA) | β |
| Programming / Debug Interface | ICSP (In-Circuit Serial Programming), supports MPLAB SNAP debugging | β |
| RoHS Status | [DATA_NEEDED: RoHS compliance status] | Compliant (RoHS Y per PartGenie) |
| Operating Temperature Range | [DATA_NEEDED: operating temperature range] | β |
| General Purpose I/O | β | 32 lines |
| Working Registers | β | 32 general purpose registers |
| Timers/Counters | β | 3 flexible timer/counters with compare modes and PWM |
| USART Interfaces | β | 2 |
| Serial Interfaces | β | TWI (I2C-compatible, byte-oriented), SPI |
| ADC | β | 8-channel, 10-bit |
| Real-Time Counter | β | Yes |
| Supply Voltage | β | 2.5 V / 3.3 V / 5 V |
| Low Power Technology | β | picoPower |
| Operating Temperature | β | [DATA_NEEDED: Operating Temperature Range] |
| MSL Rating | β | [DATA_NEEDED: Moisture Sensitivity Level] |
| Debug/Programming | β | ICSP via 2 I/O pins + reset; debug with MPLAB SNAP |