ATMEGA640-16CU vs ATMEGA1280V-8CU Comparison
Detailed side-by-side comparison of ATMEGA640-16CU by Microchip Technology and ATMEGA1280V-8CU 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
ATMEGA640-16CU - 8-bit AVR MCU 16MHz 64KB CBGA-100 | Microchip
ATMEGA640-16CU β ActiveMicrochip Technology
ATMEGA1280V-8CU - AVR 8-Bit MCU 128KB 8MHz CBGA-100 | Microchip
ATMEGA1280V-8CU β ActiveSpecification Comparison
| Parameter | ATMEGA640-16CU | ATMEGA1280V-8CU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $8.61 | $6.10 |
| Core Architecture | 8-bit AVR RISC | β |
| Maximum Clock Frequency | 16 MHz | β |
| Program Memory Size (FLASH) | 64KB (32K x 16) | β |
| Program Memory Type | In-System Programmable FLASH | β |
| SRAM Size | 8KB | β |
| EEPROM Size | 4KB | β |
| Supply Voltage Range | 4.5 V to 5.5 V | 2.7 V to 5.5 V |
| I/O Ports / Lines | 53 I/O | β |
| Number of USARTs | 4 | β |
| ADC Resolution | 10-bit | 10-bit |
| ADC Channels | 8/16-channel (per datasheet family description) | 8/16-channel (ATmega1280: 16-channel) |
| Serial Interfaces | SPI, 2-wire (I2C-compatible TWI), USART | SPI, 2-wire (TWI/I2C) |
| Watchdog Timer | Programmable, separate on-chip oscillator | Programmable, separate on-chip oscillator |
| Analog Comparator | On-chip | β |
| Package | 100-CBGA (9x9 mm) | 100-CBGA (9x9 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | Industrial temperature range (-40C to +85C) | [DATA_NEEDED: operating temperature range] |
| Data Bus Width | 8 Bit | β |
| RoHS / Green Status | Green package | β |
| Debug / Programming | ICSP via 2 I/O pins plus reset (MPLAB SNAP compatible) | β |
| Core Processor | β | AVR |
| Core Size | β | 8-Bit |
| Instruction Set | β | RISC (133/135 instructions, most single-cycle) |
| Max Clock Speed | β | 8 MHz |
| Flash Memory | β | 128KB (64K x 16) In-System Programmable |
| SRAM | β | 8KB |
| EEPROM | β | 4KB |
| General Purpose I/O | β | 86 lines |
| USART | β | 4 channels |
| Timers | β | Six flexible timers with output compare modulator |
| Debug/Scan | β | JTAG boundary scan and on-chip debug |
| Working Registers | β | 32 general purpose |
| RoHS Status | β | GREEN (per distributor listing) |