ATMEGA644PA-PU vs ATMEGA1284P-PU Comparison
Detailed side-by-side comparison of ATMEGA644PA-PU by Microchip Technology and ATMEGA1284P-PU 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-PU - 8-bit AVR MCU 20MHz 64KB Flash DIP-40 | Microchip
ATMEGA644PA-PU ✓ ActiveMicrochip Technology
ATMEGA1284P-PU - 128KB AVR MCU 20MHz 40-PDIP | Microchip
ATMEGA1284P-PU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA644PA-PU | ATMEGA1284P-PU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $5.15 | $6.05 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Core Series | AVR ATmega | — |
| Maximum Clock Frequency | 20 MHz | — |
| Flash Memory | 64 KB (32K x 16) | 128 KB (64K x 16) ISP Flash |
| SRAM | 4 KB | 16 KB |
| EEPROM | 2 KB | 4 KB |
| General Purpose I/O Lines | 32 | — |
| Working Registers | 32 | 32 general purpose |
| ADC | 8-channel, 10-bit | 8-channel 10-bit |
| USART Interfaces | 2 | — |
| Two-Wire Interface | Yes (byte-oriented, I2C-compatible) | — |
| Timer/Counters | 3, with compare modes and PWM | 3 with compare modes and PWM |
| Low Power Technology | picoPower | — |
| Package | 40-PDIP (0.600 in, 15.24 mm) | 40-PDIP (through-hole) |
| Mounting Type | Through Hole | Through Hole |
| Operating Voltage Range | [DATA_NEEDED: operating voltage range] | — |
| Operating Temperature Range | [DATA_NEEDED: operating temperature range] | — |
| RoHS Status | [DATA_NEEDED: RoHS status] | — |
| Max Clock Frequency | — | 20 MHz |
| Supply Voltage Range | — | 1.8 V to 5.5 V |
| GPIO Count | — | 32 general purpose I/O lines |
| USART Count | — | 2 |
| Serial Interfaces | — | 2x USART, TWI (I2C-compatible), SPI |
| Special Features | — | picoPower, Real Time Counter, Read-While-Write Flash |
| Instruction Set Throughput | — | Up to 1 MIPS per MHz |
| Lifecycle Status | — | Active |