ATMEGA1280-16CU vs ATMEGA640-16CU Comparison
Detailed side-by-side comparison of ATMEGA1280-16CU 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
ATMEGA1280-16CU - 8-bit AVR MCU 128KB Flash 16MHz CBGA-100 | Microchip
ATMEGA1280-16CU ✓ ActiveMicrochip Technology
ATMEGA640-16CU - 8-bit AVR MCU 16MHz 64KB CBGA-100 | Microchip
ATMEGA640-16CU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA1280-16CU | ATMEGA640-16CU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $12.90 | $8.61 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Flash Memory | 128KB (64K x 16) In-System Programmable | — |
| SRAM | 8KB | — |
| EEPROM | 4KB | — |
| Maximum Clock Frequency | 16 MHz | 16 MHz |
| Supply Voltage Range | 2.7 V to 5.5 V | 4.5 V to 5.5 V |
| Data Bus Width | 8 bit | 8 Bit |
| General Purpose I/O Lines | 86 | — |
| ADC | 8/16-channel, 10-bit | — |
| USART | 4 (ATmega1280 configuration) | — |
| Timers | [DATA_NEEDED: timer count and resolution detail] | — |
| Serial Interfaces | 4x USART, SPI (Master/Slave), 2-wire serial (TWI) | SPI, 2-wire (I2C-compatible TWI), USART |
| Instructions | 133 powerful instructions, most single-cycle | — |
| Watchdog Timer | Programmable, separate on-chip oscillator | Programmable, separate on-chip oscillator |
| Package | 100-CBGA (9x9 mm) | 100-CBGA (9x9 mm) |
| Mounting Type | Surface Mount (BGA reflow) | Surface Mount |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | Industrial temperature range (-40C to +85C) |
| Lifecycle Stage | ACTIVE | — |
| RoHS Status | [DATA_NEEDED: RoHS compliance status] | — |
| Program Memory Size (FLASH) | — | 64KB (32K x 16) |
| Program Memory Type | — | In-System Programmable FLASH |
| SRAM Size | — | 8KB |
| EEPROM Size | — | 4KB |
| 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 |
| RoHS / Green Status | — | Green package |
| Debug / Programming | — | ICSP via 2 I/O pins plus reset (MPLAB SNAP compatible) |