ATMEGA164P-20MU vs ATMEGA644P-20MU Comparison
Detailed side-by-side comparison of ATMEGA164P-20MU by Microchip Technology and ATMEGA644P-20MU 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
ATMEGA164P-20MU - 8-bit AVR MCU 20MHz 16KB Flash | Microchip
ATMEGA164P-20MU ✓ ActiveMicrochip Technology
ATMEGA644P-20MU - 8-bit AVR MCU 20MHz 64KB Flash | Microchip
ATMEGA644P-20MU NrndSpecification Comparison
| Parameter | ATMEGA164P-20MU | ATMEGA644P-20MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | NRND |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.98 | $5.02 |
| Core Processor | AVR | — |
| Core Size | 8-Bit | — |
| Speed | 20 MHz | — |
| Program Memory Size | 16 KB (8K x 16) FLASH | — |
| EEPROM Size | 512 B | — |
| RAM Size | 1 KB SRAM | — |
| Supply Voltage Range | 2.7 V to 5.5 V | — |
| Number of I/O | 32 | — |
| Timers/Counters | 3 (with compare modes and PWM) | — |
| Communication Interfaces | 2x USART, TWI (I2C), SPI | — |
| ADC | 8-channel 10-bit | 10-bit, up to 8 channels |
| RTC | Yes (real-time counter) | — |
| Instructions | 133 (advanced RISC, mostly single-cycle) | — |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | Industrial range |
| Package | 44-VQFN (7x7 mm) with Exposed Pad | 44-VQFN (7x7 mm) exposed pad |
| Mounting Type | Surface Mount | Surface Mount |
| Low Power Technology | picoPower | — |
| Programming | ISP (In-System Programming), read-while-write | — |
| Core Architecture | — | AVR 8-bit enhanced RISC |
| Maximum Clock Frequency | — | 20 MHz |
| Flash Memory | — | 64 KB (32K x 16) |
| SRAM | — | 4 KB |
| EEPROM | — | 2 KB |
| Supply Voltage | — | 4.5 V to 5.5 V (at 20 MHz) |
| USART Count | — | 2 |
| Interfaces | — | SPI, TWI (I2C-compatible), USART, JTAG |
| MIPS Rating | — | Up to 20 MIPS (1 MIPS/MHz) |
| RoHS Status | — | Green / RoHS compliant |
| Product Status | — | Mature product; not recommended for new designs, replaced by ATmega644PA |