ATMEGA324PA-CU vs ATMEGA164PA-CU Comparison
Detailed side-by-side comparison of ATMEGA324PA-CU by Microchip Technology and ATMEGA164PA-CU 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-CU
ATMEGA324PA-CU - 8-bit AVR MCU 32KB Flash 20MHz VFBGA-49 | Microchip
ATMEGA324PA-CU β ActiveMicrochip Technology
ATMEGA164PA-CU
ATMEGA164PA-CU - 8-bit AVR MCU 20MHz 16KB Flash 49-VFBGA | Microchip
ATMEGA164PA-CU β ActiveSpecification Comparison
| Parameter | ATMEGA324PA-CU | ATMEGA164PA-CU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.45 | $2.15 |
| Core Architecture | 8-bit AVR enhanced RISC | AVR 8-bit RISC |
| Flash Memory | 32 KB (16K x 16) ISP Flash | 16 KB (8K x 16) ISP, read-while-write |
| EEPROM | 1 KB | 512 B |
| SRAM | 2 KB | 1 KB |
| Maximum Clock Frequency | 20 MHz | 20 MHz |
| Supply Voltage | 2.5 V / 3.3 V / 5 V | β |
| I/O Lines | 32 | β |
| General Purpose Working Registers | 32 | β |
| Instruction Set | 131 instructions, most single-cycle | 133 powerful instructions, most single-cycle |
| Timers/Counters | 3 with compare modes and PWM | 3 flexible timer/counters with compare modes and PWM |
| USART | 2 | 2 |
| Serial Interface | TWI (I2C-compatible), byte-oriented | β |
| ADC | 8-channel, 10-bit | 8-channel 10-bit |
| Low-Power Technology | picoPower | β |
| Package | 49-VFBGA (5x5 mm) | 49-VFBGA (5x5 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Programming | In-System Programmable (ISP), read-while-write | β |
| Lifecycle Stage | ACTIVE | β |
| Data Bus Width | β | 8 bit |
| Supply Voltage Range | β | 2.7 V to 5.5 V (per datasheet summary; picoPower PA variants support lower VCC - verify in full datasheet) |
| I/O Ports | β | 32 general purpose I/O lines |
| Serial Interfaces | β | Two-Wire Interface (I2C), SPI, 2x USART |
| Low Power Technology | β | picoPower with sleep modes and real-time counter |
| Operating Temperature | β | [DATA_NEEDED: operating temperature range] |
| RoHS Status | β | Compliant (GREEN package per FindIC listing) |