ATMEGA324A-MCHR vs ATMEGA324PA-MCH Comparison
Detailed side-by-side comparison of ATMEGA324A-MCHR by Microchip Technology and ATMEGA324PA-MCH 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
ATMEGA324A-MCHR - 8-bit AVR MCU 32KB Flash 20MHz VQFN-44 | Microchip
ATMEGA324A-MCHR ✓ ActiveMicrochip Technology
ATMEGA324PA-MCH - 8-bit AVR MCU, 20MHz, 32KB Flash | Microchip
ATMEGA324PA-MCH ✓ ActiveSpecification Comparison
| Parameter | ATMEGA324A-MCHR | ATMEGA324PA-MCH |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.00 | $2.45 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Flash Memory | 32 KB ISP Flash (read-while-write) | 32 KB (16K x 16) ISP Flash |
| EEPROM | 1 KB | 1 KB |
| SRAM | 2 KB | 2 KB |
| Maximum Clock Frequency | 20 MHz | 20 MHz |
| Instructions | 131 instructions, most single-cycle | — |
| General Purpose I/O | 32 I/O lines | 32 I/O lines |
| Working Registers | 32 x 8-bit general purpose | 32 x 8 general purpose |
| 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 | — |
| Package | VQFN-44 (MLF), 44QFN with exposed pad | 44-QFN (5x5 mm) with exposed pad |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | Industrial range (see datasheet for exact limits) | — |
| Programming | In-System Programmable (ISP) | — |
| Lifecycle Status | Active | — |
| Throughput | — | Up to 20 MIPS at 20 MHz |
| Operating Voltage Range | — | 2.5 V to 5.5 V |
| Instruction Set | — | 131 instructions, most single-cycle |
| 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 |