ATMEGA644V-10AU vs ATMEGA644-20AU Comparison
Detailed side-by-side comparison of ATMEGA644V-10AU by Microchip Technology and ATMEGA644-20AU 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
ATMEGA644V-10AU - 8-bit AVR MCU 64KB Flash 10MHz | Microchip
ATMEGA644V-10AU ✓ ActiveMicrochip Technology
ATMEGA644-20AU - 8-Bit AVR MCU 64KB Flash 20MHz | Microchip
ATMEGA644-20AU NrndSpecification Comparison
| Parameter | ATMEGA644V-10AU | ATMEGA644-20AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | NRND |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $6.88 | $4.96 |
| Core | AVR 8-bit RISC | — |
| Series | ATmega644 | — |
| Maximum Clock Frequency | 10 MHz | 20 MHz |
| Program Memory Size | 64 KB (32K x 16) Flash | — |
| Program Memory Type | In-System Programmable Flash (ISP), read-while-write | — |
| EEPROM Size | 2 KB | — |
| SRAM Size | 4 KB | — |
| Number of I/O | 32 general-purpose I/O lines | — |
| Operating Voltage Range | 2.5 V / 3.3 V / 5 V supply classes | 2.7 V to 5.5 V |
| ADC Resolution | 10 bit | — |
| Operating Temperature Range | -40C to +85C | -40C to +85C |
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| USARTs | 2 | — |
| Timers/Counters | 3 (with compare modes and PWM) | — |
| Serial Interfaces | TWI (I2C-compatible), SPI, 2x USART | — |
| Throughput | Up to 10 MIPS at 10 MHz | Up to 20 MIPS at 20 MHz |
| Debug/Programming | ICSP via debugWIRE (MPLAB SNAP supported) | — |
| Core Architecture | — | 8-bit AVR RISC |
| Program Memory | — | 64 KB In-System Programmable Flash (32K x 16) |
| SRAM | — | 4 KB |
| EEPROM | — | 2 KB |
| General Purpose I/O Pins | — | 32 |
| General Purpose Working Registers | — | 32 |
| ADC | — | 8-channel, 10-bit successive approximation |
| USART Interfaces | — | 2 |
| Timer/Counters | — | 2 x 8-bit, 1 x 16-bit with compare and PWM modes |
| Two-Wire Serial Interface | — | 1 (byte-oriented, I2C compatible) |
| SPI Interface | — | 1 (master/slave) |
| Debug Interface | — | JTAG (IEEE 1149.1) with on-chip debug |
| Sleep Modes | — | 6 (Idle, ADC Noise Reduction, Power-save, Power-down, Standby, Extended Standby) |
| RoHS Status | — | Compliant |