ATMEGA649A-AUR vs ATMEGA649V-8AU Comparison
Detailed side-by-side comparison of ATMEGA649A-AUR by Microchip Technology and ATMEGA649V-8AU 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
ATMEGA649A-AUR - 8-Bit AVR MCU, 64KB Flash, TQFP-64 | Microchip
ATMEGA649A-AUR ✓ ActiveMicrochip Technology
ATMEGA649V-8AU - 64KB Flash 8MHz LCD AVR MCU | Microchip
ATMEGA649V-8AU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA649A-AUR | ATMEGA649V-8AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $5.72 | $7.28 |
| Core Architecture | 8-bit AVR RISC | — |
| Flash Program Memory | 64 KB (32K x 16) | — |
| EEPROM | 2 KB | 2 KB |
| SRAM | 4 KB | 4 KB |
| Maximum Clock Speed | 16 MHz | 8 MHz |
| Supply Voltage Range | 4.5 V to 5.5 V | 1.8 V to 5.5 V |
| I/O Ports | 53 general-purpose I/O lines | — |
| LCD Controller | Yes, on-chip with internal contrast control | Integrated segment LCD driver (up to 25 segments x 4 commons) |
| JTAG Interface | Yes (boundary-scan, on-chip debug, programming) | — |
| Instructions | 130 instructions, most single-cycle | — |
| Package | 64-TQFP (14x14 mm) | 64-TQFP, 14 x 14 mm |
| Mounting Type | Surface Mount | Surface Mount |
| Flash Programming | In-System Programmable (ISP), read-while-write | — |
| Operating Temperature Grade | Industrial | — |
| Data Bus Width | 8 bit | 8 Bit |
| Lifecycle Status | Active | — |
| Core | — | 8-bit AVR RISC |
| Flash Memory | — | 64 KB (32K x 16), ISP, read-while-write |
| General Purpose I/O | — | 54 I/O lines (69 available on 100-pin variant) |
| ADC | — | 10-bit, 8 channels |
| Debug / Boundary Scan | — | JTAG interface (IEEE 1149.1 boundary-scan) |
| Working Registers | — | 32 general purpose registers |
| Programming | — | In-System Programmable (ISP), ICSP via MPLAB SNAP |
| Operating Temperature | — | -40C to +85C (industrial) |
| RoHS / Green | — | GREEN package per ADatasheet listing |
| Peripherals | — | Timers, USART, SPI, TWI, RTC/TOSC pins |