ATMEGA649A-MU vs ATMEGA649V-8AU Comparison
Detailed side-by-side comparison of ATMEGA649A-MU 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-MU - 8-bit AVR MCU 64KB Flash 16MHz | Microchip
ATMEGA649A-MU ✓ ActiveMicrochip Technology
ATMEGA649V-8AU - 64KB Flash 8MHz LCD AVR MCU | Microchip
ATMEGA649V-8AU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA649A-MU | ATMEGA649V-8AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.42 | $7.28 |
| Core Architecture | 8-bit AVR RISC | — |
| Flash Memory | 64 KB (32K x 16) ISP Flash | 64 KB (32K x 16), ISP, read-while-write |
| EEPROM | 2 KB | 2 KB |
| SRAM | 4 KB | 4 KB |
| Maximum Clock Speed | 16 MHz | 8 MHz |
| Supply Voltage Range | 1.8 V to 5.5 V (4.5 V to 5.5 V for 16 MHz operation) | 1.8 V to 5.5 V |
| General Purpose I/O | 54/69 I/O lines | 54 I/O lines (69 available on 100-pin variant) |
| Working Registers | 32 general purpose registers | 32 general purpose registers |
| Debug Interface | JTAG (boundary scan and on-chip debug) | — |
| Package | 64-QFN (9x9 mm) with exposed pad (64-VFQFN) | 64-TQFP, 14 x 14 mm |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (industrial) |
| Program Memory Type | Flash (read-while-write) | — |
| Series | AVR ATmega | — |
| RoHS Status | Compliant (Green package) | — |
| Core Performance | Up to 16 MIPS at 16 MHz (single-cycle instructions) | — |
| Core | — | 8-bit AVR RISC |
| LCD Controller | — | Integrated segment LCD driver (up to 25 segments x 4 commons) |
| ADC | — | 10-bit, 8 channels |
| Debug / Boundary Scan | — | JTAG interface (IEEE 1149.1 boundary-scan) |
| Programming | — | In-System Programmable (ISP), ICSP via MPLAB SNAP |
| Data Bus Width | — | 8 Bit |
| RoHS / Green | — | GREEN package per ADatasheet listing |
| Peripherals | — | Timers, USART, SPI, TWI, RTC/TOSC pins |