ATMEGA164A-CU vs ATMEGA164PA-CU Comparison
Detailed side-by-side comparison of ATMEGA164A-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
ATMEGA164A-CU - 8-bit AVR MCU 16KB Flash 20MHz BGA | Microchip
ATMEGA164A-CU ✓ ActiveMicrochip Technology
ATMEGA164PA-CU - 8-bit AVR MCU 20MHz 16KB Flash 49-VFBGA | Microchip
ATMEGA164PA-CU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA164A-CU | ATMEGA164PA-CU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core | AVR 8-bit RISC | — |
| Data Bus Width | 8 bit | 8 bit |
| Maximum Clock Frequency | 20 MHz | 20 MHz |
| Throughput | 20 MIPS at 20 MHz | — |
| FLASH Program Memory | 16 KB (8K x 16) | — |
| EEPROM | 512 B | 512 B |
| SRAM | 1 KB | 1 KB |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V (per datasheet summary; picoPower PA variants support lower VCC - verify in full datasheet) |
| General Purpose I/O | 32 lines | — |
| Instruction Set | 133 instructions, most single-cycle | 133 powerful instructions, most single-cycle |
| Hardware Multiplier | On-chip 2-cycle multiplier | — |
| Working Registers | 32 x 8 bit | — |
| Programming | In-System Programmable (ISP), read-while-write | — |
| Package | 49-VFBGA (5 x 5 mm) | 49-VFBGA (5x5 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | [DATA_NEEDED: Operating Temperature] | [DATA_NEEDED: operating temperature range] |
| Lifecycle Status | Active | — |
| RoHS Status | unknown | Compliant (GREEN package per FindIC listing) |
| Core Architecture | — | AVR 8-bit RISC |
| Flash Memory | — | 16 KB (8K x 16) ISP, read-while-write |
| I/O Ports | — | 32 general purpose I/O lines |
| Timers/Counters | — | 3 flexible timer/counters with compare modes and PWM |
| USART | — | 2 |
| Serial Interfaces | — | Two-Wire Interface (I2C), SPI, 2x USART |
| ADC | — | 8-channel 10-bit |
| Low Power Technology | — | picoPower with sleep modes and real-time counter |