ATMEGA649P-AUR vs ATMEGA645A-AUR Comparison
Detailed side-by-side comparison of ATMEGA649P-AUR by Microchip Technology and ATMEGA645A-AUR 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
ATMEGA649P-AUR - AVR 8-bit MCU 64KB Flash LCD | Microchip
ATMEGA649P-AUR ✓ ActiveMicrochip Technology
ATMEGA645A-AUR - 8-bit AVR MCU 64KB Flash 16MHz TQFP-64 | Microchip
ATMEGA645A-AUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA649P-AUR | ATMEGA645A-AUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.72 | $4.68 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Flash Memory | 64 KB ISP Flash (read-while-write) | 64 KB (32K x 16) ISP FLASH |
| EEPROM | 2 KB | 2 KB |
| SRAM | 4 KB | 4 KB |
| Maximum CPU Speed | 16 MHz | — |
| General Purpose I/O | 54/69 lines | 54 I/O lines |
| Working Registers | 32 general purpose | 32 x 8-bit |
| LCD Controller | Integrated segment LCD driver | Yes, segment driver (megaAVR LCD family) |
| Debug Interface | JTAG (on-chip debug, boundary scan) | — |
| Low Power Technology | picoPower | — |
| Supply Voltage | 1.8 V to 5.5 V (picoPower family) | — |
| Operating Temperature | -40C to +85C (industrial, per A-grade suffix) | — |
| Package | 64TQFP (TQFP-64) | 64-TQFP (14 x 14 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Packing | Tape & Reel (T&R) | — |
| RoHS / Green | GREEN package | — |
| Product Status | Active | — |
| Max Operating Frequency | — | 16 MHz |
| Operating Voltage Range | — | 2.5 V / 3.3 V / 5 V (per datasheet family listing) |
| ADC | — | 10-bit, 8 channels |
| Timers | — | Two 8-bit, one 16-bit |
| Serial Interfaces | — | 2 x USART, SPI, TWI (I2C compatible) |
| Debug / Programming | — | JTAG, ICSP (In-Circuit Serial Programming) |
| Operating Temperature (Max) | — | 85 C |
| Packaging | — | Tape & Reel (R suffix) |
| RoHS Status | — | Compliant |