ATMEGA645A-AUR vs ATMEGA6450A-AU Comparison
Detailed side-by-side comparison of ATMEGA645A-AUR by Microchip Technology and ATMEGA6450A-AU 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
ATMEGA645A-AUR - 8-bit AVR MCU 64KB Flash 16MHz TQFP-64 | Microchip
ATMEGA645A-AUR ✓ ActiveMicrochip Technology
ATMEGA6450A-AU - 8-bit AVR MCU 64KB 20MHz TQFP-100 | Microchip
ATMEGA6450A-AU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA645A-AUR | ATMEGA6450A-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.68 | $5.95 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC, 130 instructions |
| Max Operating Frequency | 16 MHz | — |
| 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 |
| Operating Voltage Range | 2.5 V / 3.3 V / 5 V (per datasheet family listing) | — |
| General Purpose I/O | 54 I/O lines | 54 / 69 lines |
| Working Registers | 32 x 8-bit | 32 x 8-bit |
| ADC | 10-bit, 8 channels | [DATA_NEEDED: ADC resolution and channels] |
| LCD Controller | Yes, segment driver (megaAVR LCD family) | — |
| Timers | Two 8-bit, one 16-bit | Three flexible timer/counters with compare modes |
| Serial Interfaces | 2 x USART, SPI, TWI (I2C compatible) | — |
| Debug / Programming | JTAG, ICSP (In-Circuit Serial Programming) | JTAG (boundary-scan, on-chip debug), ICSP |
| Package | 64-TQFP (14 x 14 mm) | 100-TQFP (14x14 mm) |
| Operating Temperature (Max) | 85 C | — |
| Mounting Type | Surface Mount | Surface Mount |
| Packaging | Tape & Reel (R suffix) | — |
| RoHS Status | Compliant | — |
| Maximum Clock Frequency | — | 20 MHz |
| Peak Throughput | — | 20 MIPS (at 20 MHz) |
| Supply Voltage | — | 2.5 V / 3.3 V / 5 V operating points |
| Operating Temperature | — | [DATA_NEEDED: operating temperature range] |
| Series | — | AVR ATmega, Industrial grade (IND) |
| Moisture Sensitivity Level | — | [DATA_NEEDED: MSL level] |