ATMEGA644PA-AU vs ATMEGA32A-ANR Comparison
Detailed side-by-side comparison of ATMEGA644PA-AU by Microchip Technology and ATMEGA32A-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
ATMEGA644PA-AU - 8-bit AVR MCU, 20MHz, 64KB Flash | Microchip
ATMEGA644PA-AU ✓ ActiveMicrochip Technology
ATMEGA32A-ANR - 8-bit AVR MCU, 32KB Flash, 16MHz, 44-TQFP
ATMEGA32A-ANR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA644PA-AU | ATMEGA32A-ANR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.61 | $3.32 |
| Core Architecture | AVR 8-bit RISC | AVR 8-bit RISC |
| Family | ATmega | — |
| Series | ATmega644P / picoPower | — |
| Maximum Clock Frequency | 20 MHz | — |
| Program Memory (Flash) | 64 KB (32K x 16) | 32 KB (16K x 16) |
| SRAM | 4 KB | 2 KB |
| EEPROM | 2 KB | 1 KB |
| Supply Voltage Range | 1.8 V to 5.5 V | — |
| Operating Temperature | -40C to +85C (industrial) | -40 C to +105 C |
| GPIO Pins | 32 | — |
| ADC | 8-channel, 10-bit | 8-channel, 10-bit |
| USART | 2 | — |
| I2C (TWI) | 1 | — |
| SPI | 1 | — |
| Timer/Counters | 3 (with PWM and compare modes) | — |
| Package | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| MIPS | 20 MIPS at 20 MHz | — |
| Programming Interface | ISP / ICSP / JTAG / debugWIRE | — |
| RoHS Status | Compliant | Compliant |
| Maximum CPU Speed | — | 16 MHz |
| MIPS Throughput | — | 16 MIPS at 16 MHz |
| Operating Voltage | — | 2.7 V to 5.5 V |
| Number of I/O Pins | — | 32 |
| Timers | — | 2x 8-bit + 1x 16-bit |
| Communication Interfaces | — | 2x USART, SPI, TWI (I2C) |
| Debug Interface | — | JTAG (IEEE 1149.1) |
| Packaging | — | Tape & Reel (TR) |