ATMEGA1280-16CUR vs ATMEGA640-16CU Comparison
Detailed side-by-side comparison of ATMEGA1280-16CUR by Microchip Technology and ATMEGA640-16CU 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
ATMEGA1280-16CUR - 8-Bit AVR MCU 16MHz 128KB CBGA | Microchip
ATMEGA1280-16CUR ✓ ActiveMicrochip Technology
ATMEGA640-16CU - 8-bit AVR MCU 16MHz 64KB CBGA-100 | Microchip
ATMEGA640-16CU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA1280-16CUR | ATMEGA640-16CU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $6.25 | $8.61 |
| Core | AVR 8-bit RISC | — |
| Core Size | 8-bit | — |
| Maximum Clock Frequency | 16 MHz | 16 MHz |
| Program Memory Size | 128 KB (64K x 16) FLASH | — |
| Program Memory Type | ISP FLASH | In-System Programmable FLASH |
| SRAM Size | 8 KB | 8KB |
| EEPROM Size | 4 KB | 4KB |
| Number of I/O | 86 | — |
| Operating Supply Voltage | 2.7 V to 5.5 V | — |
| Supply Voltage at 16 MHz | 4.5 V to 5.5 V | — |
| Instructions | 133 instructions, most single-cycle | — |
| Timers/Counters | Six flexible timer/counters with compare modes, PWM | — |
| USART | Four programmable serial USART | — |
| ADC | 16-channel, 10-bit | — |
| Serial Interfaces | SPI (master/slave), 2-wire serial interface, analog comparator | SPI, 2-wire (I2C-compatible TWI), USART |
| Package | 100-CBGA (9x9 mm) | 100-CBGA (9x9 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Watchdog Timer | Programmable, separate on-chip oscillator | Programmable, separate on-chip oscillator |
| Operating Temperature | [DATA_NEEDED: Operating Temperature Range] | Industrial temperature range (-40C to +85C) |
| Life Cycle Stage | ACTIVE | — |
| Core Architecture | — | 8-bit AVR RISC |
| Program Memory Size (FLASH) | — | 64KB (32K x 16) |
| Supply Voltage Range | — | 4.5 V to 5.5 V |
| I/O Ports / Lines | — | 53 I/O |
| Number of USARTs | — | 4 |
| ADC Resolution | — | 10-bit |
| ADC Channels | — | 8/16-channel (per datasheet family description) |
| Analog Comparator | — | On-chip |
| Data Bus Width | — | 8 Bit |
| RoHS / Green Status | — | Green package |
| Debug / Programming | — | ICSP via 2 I/O pins plus reset (MPLAB SNAP compatible) |