ATMEGA644PA-PU vs ATMEGA32A-PU Comparison
Detailed side-by-side comparison of ATMEGA644PA-PU by Microchip Technology and ATMEGA32A-PU 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-PU - 8-bit AVR MCU 20MHz 64KB Flash DIP-40 | Microchip
ATMEGA644PA-PU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA644PA-PU | ATMEGA32A-PU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $5.15 | $3.85 |
| Core Architecture | 8-bit AVR RISC | — |
| Core Series | AVR ATmega | — |
| Maximum Clock Frequency | 20 MHz | 16 MHz |
| Flash Memory | 64 KB (32K x 16) | — |
| SRAM | 4 KB | 2 KB |
| EEPROM | 2 KB | 1 KB |
| General Purpose I/O Lines | 32 | — |
| Working Registers | 32 | — |
| ADC | 8-channel, 10-bit | 8-channel, 10-bit |
| USART Interfaces | 2 | — |
| Two-Wire Interface | Yes (byte-oriented, I2C-compatible) | — |
| Timer/Counters | 3, with compare modes and PWM | — |
| Low Power Technology | picoPower | — |
| Package | 40-PDIP (0.600 in, 15.24 mm) | 40-pin PDIP (PU) |
| Mounting Type | Through Hole | Through-Hole |
| Operating Voltage Range | [DATA_NEEDED: operating voltage range] | — |
| Operating Temperature Range | [DATA_NEEDED: operating temperature range] | — |
| RoHS Status | [DATA_NEEDED: RoHS status] | Compliant |
| Architecture | — | AVR 8-bit RISC (modified Harvard) |
| Program Memory (Flash) | — | 32 KB (16K x 16) |
| Instruction Throughput | — | 16 MIPS at 16 MHz |
| Supply Voltage (Vcc) | — | 4.5 V to 5.5 V |
| I/O Pins | — | 32 programmable |
| Timers/Counters | — | Two 8-bit, one 16-bit |
| Communication Interfaces | — | USART, SPI, TWI (I2C) |
| Debug Interface | — | JTAG (IEEE 1149.1) |
| Operating Temperature | — | -40 C to +85 C (industrial) |