ATMEGA644-20AU vs ATMEGA644PA-ANR Comparison
Detailed side-by-side comparison of ATMEGA644-20AU by Microchip Technology and ATMEGA644PA-ANR 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
ATMEGA644PA-ANR - 8-bit AVR MCU 64KB Flash 44-TQFP | Microchip
ATMEGA644PA-ANR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA644-20AU | ATMEGA644PA-ANR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | NRND | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.96 | $3.35 |
| 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 | — |
| Throughput | Up to 20 MIPS at 20 MHz | — |
| Operating Voltage Range | 2.7 V to 5.5 V | — |
| 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) | — |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature Range | -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 | Green (RoHS compliant per FindIC listing) |
| Core Processor | — | AVR |
| Core Size | — | 8-Bit |
| Speed | — | 16 MHz |
| Program Memory Size | — | 64 KB (32K x 16) |
| Program Memory Type | — | FLASH |
| EEPROM Size | — | 2 KB |
| RAM Size | — | 4 KB |
| Number of I/O | — | 32 |
| Oscillator Type | — | Internal |
| Peripherals | — | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | — | I2C, SPI, USART |
| ADC Resolution | — | 10-bit, 8 channels |
| Architecture Features | — | 131 instructions, most single-cycle, 2-cycle on-chip multiplier |
| Package / Case | — | 44-TQFP (10x10 mm) |
| Operating Temperature | — | -40C to +105C |
| Packaging | — | Tape & Reel (TR) |
| Technology | — | picoPower |
| Voltage - Supply | — | [DATA_NEEDED: Voltage - Supply] |