ATMEGA644-20AU vs ATMEGA644V-10AU Comparison
Detailed side-by-side comparison of ATMEGA644-20AU by Microchip Technology and ATMEGA644V-10AU 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
ATMEGA644-20AU - 8-Bit AVR MCU 64KB Flash 20MHz | Microchip
ATMEGA644-20AU NrndMicrochip Technology
ATMEGA644V-10AU - 8-bit AVR MCU 64KB Flash 10MHz | Microchip
ATMEGA644V-10AU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA644-20AU | ATMEGA644V-10AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | NRND | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.96 | $6.88 |
| Core Architecture | 8-bit AVR RISC | — |
| Program Memory | 64 KB In-System Programmable Flash (32K x 16) | — |
| SRAM | 4 KB | — |
| EEPROM | 2 KB | — |
| Maximum Clock Frequency | 20 MHz | 10 MHz |
| Throughput | Up to 20 MIPS at 20 MHz | Up to 10 MIPS at 10 MHz |
| Operating Voltage Range | 2.7 V to 5.5 V | 2.5 V / 3.3 V / 5 V supply classes |
| 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) | — |
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature Range | -40C to +85C | -40C to +85C |
| 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 | — |
| Core | — | AVR 8-bit RISC |
| Series | — | ATmega644 |
| 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 |
| ADC Resolution | — | 10 bit |
| USARTs | — | 2 |
| Timers/Counters | — | 3 (with compare modes and PWM) |
| Serial Interfaces | — | TWI (I2C-compatible), SPI, 2x USART |
| Debug/Programming | — | ICSP via debugWIRE (MPLAB SNAP supported) |