ATMEGA645A-AUR vs ATMEGA645-16AUR Comparison
Detailed side-by-side comparison of ATMEGA645A-AUR by Microchip Technology and ATMEGA645-16AUR 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
ATMEGA645-16AUR - 8-Bit AVR MCU 64KB 16MHz 64-TQFP | Microchip
ATMEGA645-16AUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA645A-AUR | ATMEGA645-16AUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.68 | $5.40 |
| Core Architecture | 8-bit AVR RISC | — |
| Max Operating Frequency | 16 MHz | — |
| Flash Memory | 64 KB (32K x 16) ISP FLASH | — |
| 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 | — |
| Working Registers | 32 x 8-bit | — |
| ADC | 10-bit, 8 channels | — |
| LCD Controller | Yes, segment driver (megaAVR LCD family) | — |
| Timers | Two 8-bit, one 16-bit | — |
| Serial Interfaces | 2 x USART, SPI, TWI (I2C compatible) | — |
| Debug / Programming | JTAG, ICSP (In-Circuit Serial Programming) | — |
| Package | 64-TQFP (14 x 14 mm) | 64-TQFP (14 x 14 mm) |
| Operating Temperature (Max) | 85 C | — |
| Mounting Type | Surface Mount | Surface Mount |
| Packaging | Tape & Reel (R suffix) | — |
| RoHS Status | Compliant | Compliant (R suffix) |
| Core | — | AVR 8-bit RISC |
| Core Size | — | 8-bit |
| Max Clock Frequency | — | 16 MHz |
| MIPS Throughput | — | 16 MIPS at 16 MHz |
| Program Memory (Flash) | — | 64 KB (32K x 16) |
| Supply Voltage Range | — | 4.5 V to 5.5 V |
| ADC Channels | — | 8-channel 10-bit |
| Programmable I/O Lines | — | 53 (TQFP-64 package) |
| Debug Interface | — | JTAG (on-chip debugging and boundary scan) |
| Instruction Count | — | 130 instructions, most single-cycle |
| Operating Temperature | — | -40C to +85C (A grade) |
| Lifecycle Stage | — | Active |