ATMEGA644-20MUR vs ATMEGA32A-MUR Comparison
Detailed side-by-side comparison of ATMEGA644-20MUR by Microchip Technology and ATMEGA32A-MUR 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
ATMEGA644-20MUR - 8-bit AVR MCU 64KB Flash 20MHz | Microchip
ATMEGA644-20MUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA644-20MUR | ATMEGA32A-MUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Architecture | 8-bit AVR RISC | — |
| Max Clock Frequency | 20 MHz | — |
| Program Memory (Flash) | 64KB (32K x 16) | — |
| SRAM | 4KB | 2 KB |
| EEPROM | 2KB | 1 KB |
| Supply Voltage Range | 4.5 V to 5.5 V | — |
| Data Bus Width | 8 Bit | — |
| General Purpose I/O | 32 I/O lines | — |
| Timers/Counters | 3 (with compare modes and PWM) | — |
| Communication Interfaces | USART, SPI, TWI (I2C) | I2C, SPI, UART/USART |
| ADC | 10-bit | 8-channel, 10-bit |
| Programming Interface | ICSP (In-Circuit Serial Programming), debugWIRE | — |
| Operating Temperature | Industrial (-40C to +85C) | [DATA_NEEDED: operating temperature range] |
| Package | 44-VQFN (7x7 mm) Exposed Pad | 44-VQFN, 7x7 mm |
| Mounting Type | Surface Mount | Surface mount |
| RoHS Status | [DATA_NEEDED: RoHS status] | [DATA_NEEDED: RoHS status] |
| Lifecycle Stage | ACTIVE | — |
| Product Type | — | 8-bit AVR microcontroller |
| Architecture | — | AVR enhanced RISC |
| Maximum Clock Speed | — | 16 MHz |
| Flash Memory | — | 32 KB |
| Supply Voltage | — | 4.5 V to 5.5 V |
| I/O Ports | — | 32 |
| Debug Interface | — | JTAG |
| Package Type | — | VQFN with exposed pad |
| Core | — | AVR 8-bit core |
| Program Memory Type | — | Self-programmable Flash |
| Instruction Set | — | 131 AVR instructions |
| ADC Resolution | — | 10 bit |
| REACH Status | — | [DATA_NEEDED: REACH status] |
| AEC-Q100 Qualification | — | [DATA_NEEDED: AEC-Q100 qualification] |
| Absolute Maximum Ratings | — | [DATA_NEEDED: absolute maximum ratings] |