ATMEGA640-16AUR vs ATMEGA6450-16AUR Comparison
Detailed side-by-side comparison of ATMEGA640-16AUR by Microchip Technology and ATMEGA6450-16AUR 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
ATMEGA640-16AUR - 8-bit AVR MCU 64KB Flash 16MHz TQFP-100 | Microchip
ATMEGA640-16AUR ✓ ActiveMicrochip Technology
ATMEGA6450-16AUR - 8-Bit AVR MCU 64KB Flash 16MHz | Microchip
ATMEGA6450-16AUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA640-16AUR | ATMEGA6450-16AUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $6.20 | $5.66 |
| Core Architecture | 8-bit AVR RISC | AVR 8-bit RISC |
| Program Memory (Flash) | 64 KB (32K x 16) | 64 KB (32K x 16), ISP |
| SRAM | 8 KB | 4 KB |
| EEPROM | 4 KB | 2 KB |
| Maximum CPU Clock | 16 MHz | — |
| Operating Voltage (Vcc) | 4.5 V to 5.5 V | — |
| General-Purpose I/O Lines | 86 | — |
| General-Purpose Working Registers | 32 | — |
| Timer/Counters | 6 flexible timer/counters with compare/PWM | — |
| ADC | 10-bit, 8/16-channel | 8-channel 10-bit |
| USART | 2 programmable serial USARTs | — |
| SPI | 1 master/slave SPI | — |
| TWI (I2C-compatible) | 1 byte-oriented 2-wire interface | — |
| Analog Comparator | On-chip | — |
| Watchdog Timer | Programmable, with separate on-chip oscillator | — |
| Package | 100-pin TQFP (14x14 mm) | 100-TQFP (14 x 14 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C |
| In-System Programmable (ISP) | Yes | — |
| RoHS Status | Compliant | Compliant (green package, 'U' suffix) |
| Maximum Clock Frequency | — | 16 MHz |
| Performance (MIPS) | — | 16 MIPS at 16 MHz |
| Instructions | — | 130 instructions, most single-cycle |
| Supply Voltage Range | — | 2.7 V to 5.5 V (16 MHz requires 4.5 V to 5.5 V) |
| Debug Interface | — | JTAG (on-chip debug and boundary scan) |
| Programmable I/O | — | 68 lines |
| Data Bus Width | — | 8 Bit |
| Lifecycle Status | — | Active |