ATMEGA644P-20PU vs ATMEGA164P-20PU Comparison
Detailed side-by-side comparison of ATMEGA644P-20PU by Microchip Technology and ATMEGA164P-20PU 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
ATMEGA644P-20PU - 8-bit AVR MCU 20MHz 64KB Flash | Microchip
ATMEGA644P-20PU ✓ ActiveMicrochip Technology
ATMEGA164P-20PU - 8-bit AVR MCU 16KB Flash 20MHz DIP-40 | Microchip
ATMEGA164P-20PU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA644P-20PU | ATMEGA164P-20PU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $8.55 | $1.55 |
| Core Architecture | AVR 8-bit RISC | 8-bit AVR RISC |
| Core Size | 8-bit | — |
| Max Clock Frequency | 20 MHz | — |
| Flash Memory | 64KB (32K x 16) | 16 KB (8K x 16) ISP FLASH |
| SRAM | 4KB | 1 KB |
| EEPROM | 2KB | 512 B |
| I/O Count | 32 | — |
| ADC Channels | 8 channels, 10-bit | — |
| PWM Channels | 6 | — |
| Timers/Counters | 3 | 3 with compare modes and PWM |
| Communication Interfaces | I2C, SPI, UART/USART (2 x USART) | — |
| Supply Voltage (max speed) | 5 V (4.5V to 5.5V) | — |
| Operating Temperature | -40C to +85C | — |
| Package | 40-PDIP (0.600 inch width) | 40-PDIP (DIP-40) through-hole |
| Mounting Type | Through Hole | Through Hole |
| Program Memory Type | ISP FLASH (read-while-write) | — |
| Technology | picoPower low-power CMOS | picoPower low-power |
| RoHS Status | [DATA_NEEDED: RoHS compliance status] | [DATA_NEEDED: RoHS status] |
| MSL Level | N/A (through-hole) | — |
| Maximum Clock Frequency | — | 20 MHz |
| Peak Throughput | — | Up to 20 MIPS at 20 MHz |
| Supply Voltage Range | — | 2.7 V to 5.5 V |
| General Purpose I/O Lines | — | 32 |
| ADC | — | 8-channel, 10-bit |
| USART | — | 2 |
| Serial Interfaces | — | TWI (I2C), SPI |
| Debug / Programming | — | JTAG (on-chip debug), ISP |
| Lifecycle Status | — | Active (newer ATMEGA164PA available) |