ATMEGA164PA-MU vs ATMEGA644A-MUR Comparison
Detailed side-by-side comparison of ATMEGA164PA-MU by Microchip Technology and ATMEGA644A-MUR 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
ATMEGA164PA-MU - 8-bit AVR MCU 20MHz 16KB Flash | Microchip
ATMEGA164PA-MU ✓ ActiveMicrochip Technology
ATMEGA644A-MUR - 8-bit AVR MCU 64KB Flash 20MHz | Microchip
ATMEGA644A-MUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA164PA-MU | ATMEGA644A-MUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.55 | $4.31 |
| Core Architecture | 8-bit AVR RISC | AVR enhanced RISC, 8-bit |
| Flash Memory | 16 KB (8K x 16) ISP Flash | 64 KB (32K x 16) ISP Flash with read-while-write |
| EEPROM | 512 B | 2 KB |
| SRAM | 1 KB | 4 KB |
| Maximum Clock Frequency | 20 MHz | 20 MHz |
| Supply Voltage Range | 2.7 V to 5.5 V | [DATA_NEEDED: exact VCC min/max per datasheet table] |
| General Purpose I/O Lines | 32 | — |
| Timers/Counters | 3 (with compare modes and PWM) | 3 flexible timers with compare modes and PWM |
| USART Channels | 2 | 2 |
| Two-Wire Interface (I2C) | Yes, byte-oriented TWI | — |
| ADC | 8-channel, 10-bit | — |
| Instructions | 133, most single-cycle | — |
| Low Power Technology | picoPower | — |
| Package | 44-VQFN (7x7 mm) | 44-VQFN (7x7 mm) exposed pad |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | Industrial, -40C to +85C |
| Programmability | In-System Programmable (ISP), read-while-write | — |
| CPU Throughput | — | Up to 20 MIPS at 20 MHz (1 MIPS per MHz) |
| General Purpose I/O | — | 32 I/O lines |
| Working Registers | — | 32 x 8-bit general purpose |
| Serial Interfaces | — | TWI (I2C-compatible), SPI, 2x USART |
| Real-Time Counter | — | Yes |
| Supply Voltage Options | — | 2.5 V / 3.3 V / 5 V |
| On-Chip Debug | — | JTAG |
| RoHS Status | — | Compliant |
| Packaging | — | Tape & Reel (R suffix) |