ATMEGA649V-8AU vs ATMEGA640V-8AU Comparison
Detailed side-by-side comparison of ATMEGA649V-8AU by Microchip Technology and ATMEGA640V-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
ATMEGA649V-8AU - 64KB Flash 8MHz LCD AVR MCU | Microchip
ATMEGA649V-8AU β ActiveMicrochip Technology
ATMEGA640V-8AU - 8MHz 64KB Flash AVR MCU 100-TQFP | Microchip
ATMEGA640V-8AU β ActiveSpecification Comparison
| Parameter | ATMEGA649V-8AU | ATMEGA640V-8AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $7.28 | $3.95 |
| Core | 8-bit AVR RISC | β |
| Flash Memory | 64 KB (32K x 16), ISP, read-while-write | 64 KB (32K x 16) |
| EEPROM | 2 KB | 4 KB |
| SRAM | 4 KB | 8 KB |
| Maximum Clock Speed | 8 MHz | β |
| Supply Voltage Range | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| General Purpose I/O | 54 I/O lines (69 available on 100-pin variant) | 86 lines |
| LCD Controller | Integrated segment LCD driver (up to 25 segments x 4 commons) | β |
| ADC | 10-bit, 8 channels | 10-bit, 16-channel |
| Debug / Boundary Scan | JTAG interface (IEEE 1149.1 boundary-scan) | β |
| Working Registers | 32 general purpose registers | β |
| Programming | In-System Programmable (ISP), ICSP via MPLAB SNAP | β |
| Package | 64-TQFP, 14 x 14 mm | 100-TQFP (14 x 14 mm) |
| Operating Temperature | -40C to +85C (industrial) | β |
| Data Bus Width | 8 Bit | β |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS / Green | GREEN package per ADatasheet listing | β |
| Peripherals | Timers, USART, SPI, TWI, RTC/TOSC pins | β |
| Core Architecture | β | 8-bit AVR RISC |
| Max Clock Frequency | β | 8 MHz |
| Timers/Counters | β | 6 |
| USART Interfaces | β | 4 |
| Serial Interfaces | β | SPI, 2-wire (I2C-compatible), 4x USART |
| Analog Comparator | β | Yes, on-chip |
| Watchdog Timer | β | Yes, with separate on-chip oscillator |
| External Memory Interface | β | EBI/EMI |
| Program Memory Type | β | ISP Flash |
| Series | β | AVR ATmega |
| RoHS Status | β | Compliant |