ATMEGA324PA-MCH vs ATMEGA324A-MCHR Comparison
Detailed side-by-side comparison of ATMEGA324PA-MCH by Microchip Technology and ATMEGA324A-MCHR 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
ATMEGA324PA-MCH - 8-bit AVR MCU, 20MHz, 32KB Flash | Microchip
ATMEGA324PA-MCH ✓ ActiveMicrochip Technology
ATMEGA324A-MCHR - 8-bit AVR MCU 32KB Flash 20MHz VQFN-44 | Microchip
ATMEGA324A-MCHR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA324PA-MCH | ATMEGA324A-MCHR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Flash Memory | 32 KB (16K x 16) ISP Flash | 32 KB ISP Flash (read-while-write) |
| EEPROM | 1 KB | 1 KB |
| SRAM | 2 KB | 2 KB |
| Maximum Clock Frequency | 20 MHz | 20 MHz |
| Throughput | Up to 20 MIPS at 20 MHz | — |
| Operating Voltage Range | 2.5 V to 5.5 V | — |
| General Purpose I/O | 32 I/O lines | 32 I/O lines |
| Package | 44-QFN (5x5 mm) with exposed pad | VQFN-44 (MLF), 44QFN with exposed pad |
| Mounting Type | Surface Mount | Surface Mount |
| Instruction Set | 131 instructions, most single-cycle | — |
| Working Registers | 32 x 8 general purpose | 32 x 8-bit general purpose |
| Multiplier | On-chip 2-cycle multiplier | — |
| Low Power Technology | picoPower | — |
| Programmability | In-System Programmable (ISP), read-while-write | — |
| Supply Voltage Options | 2.5 V / 3.3 V / 5 V | — |
| Instructions | — | 131 instructions, most single-cycle |
| Minimum Supply Voltage | — | 1.80 V |
| Supply Voltage Range | — | [DATA_NEEDED: operating supply voltage range] |
| Timers | — | 3 timers with PWM (real time counter included) |
| Communication Interfaces | — | USART, SPI, TWI (I2C) |
| ADC | — | 10-bit ADC |
| Operating Temperature | — | Industrial range (see datasheet for exact limits) |
| Programming | — | In-System Programmable (ISP) |
| Lifecycle Status | — | Active |