ATMEGA324A-AU vs ATMEGA164A-AU Comparison
Detailed side-by-side comparison of ATMEGA324A-AU by Microchip Technology and ATMEGA164A-AU 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-AU - AVR MCU 32KB Flash 20MHz TQFP-44 | Microchip
ATMEGA324A-AU ✓ ActiveMicrochip Technology
ATMEGA164A-AU - 8-bit AVR MCU, 16KB Flash, 20MHz, 44-TQFP
ATMEGA164A-AU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA324A-AU | ATMEGA164A-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.09 | $2.65 |
| Core Architecture | 8-bit AVR RISC | AVR 8-bit RISC |
| Flash Memory | 32 KB (ISP, read-while-write) | — |
| EEPROM | 1 KB | 512 B |
| SRAM | 2 KB | 1 KB |
| Maximum CPU Frequency | 20 MHz | — |
| Supply Voltage Range | 1.8 V to 5.5 V (speed-grade dependent) | — |
| General Purpose I/O | 32 lines | 32 |
| General Purpose Working Registers | 32 | — |
| Instructions | 131 (most single-cycle) | — |
| Timers/Counters | 3 | Two 8-bit, One 16-bit |
| Real Time Counter | Yes | — |
| Serial Interfaces | USART, SPI, 2-Wire (I2C/TWI) | — |
| In-System Programming | Yes (ISP) | — |
| Package Type | TQFP-44, 10 x 10 mm, 1 mm height, 0.8 mm pitch | — |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (industrial) |
| Life Cycle Stage | Active | — |
| RoHS Status | Compliant | Compliant |
| Program Memory (Flash) | — | 16 KB (8K x 16) |
| Maximum CPU Speed | — | 20 MHz (20 MIPS) |
| Supply Voltage | — | 2.7 V to 5.5 V (4.5V-5.5V at 20MHz) |
| ADC | — | 8-channel, 10-bit |
| PWM Channels | — | 6 |
| Communication Interfaces | — | 2x USART, SPI, I2C (TWI) |
| Package | — | 44-TQFP (10x10 mm) |