ATMEGA164P-15AT vs ATMEGA644P-15AT Comparison
Detailed side-by-side comparison of ATMEGA164P-15AT by Microchip Technology and ATMEGA644P-15AT 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-15AT - 16MHz AVR MCU 16KB Flash 44-TQFP | Microchip
ATMEGA164P-15AT ✓ ActiveMicrochip Technology
ATMEGA644P-15AT - 8-bit AVR MCU 64KB Flash 16MHz TQFP-44 | Microchip
ATMEGA644P-15AT ObsoleteSpecification Comparison
| Parameter | ATMEGA164P-15AT | ATMEGA644P-15AT |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Obsolete |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.35 | $4.12 |
| Core | 8-bit AVR RISC | — |
| Program Memory Size | 16 KB (8K x 16) FLASH | — |
| RAM Size | 1K x 8 SRAM | — |
| EEPROM | 512 B | 2 KB |
| Number of I/O | 32 | — |
| Maximum Clock Speed | 16 MHz | — |
| Supply Voltage Range | 2.7 V to 5.5 V | — |
| ADC Resolution | 10-bit | — |
| ADC Channels | 8-channel | — |
| Communication Interfaces | I2C (Two-Wire), SPI, 2x UART/USART | — |
| Timers/Counters | 3 (with compare modes and PWM) | — |
| Oscillator Type | Internal | — |
| Package / Case | 44-TQFP (10x10 mm) | — |
| Mounting Type | Surface Mount | Surface Mount |
| Packaging | Tape & Reel (TR) | — |
| Program Features | High-performance, low-power AVR 8-bit RISC, 131 instructions, 32 general-purpose working registers | — |
| Series | AVR ATmega, picoPower | — |
| Core Architecture | — | AVR 8-bit enhanced RISC |
| Program Memory (Flash) | — | 64 KB (32K x 16) |
| SRAM | — | 4 KB |
| Maximum Clock Frequency | — | 16 MHz (at 5V) |
| Throughput | — | Up to 1 MIPS per MHz (16 MIPS peak) |
| Operating Voltage (VCC) | — | 2.7 V to 5.5 V |
| General-Purpose I/O Lines | — | 32 |
| ADC | — | 8-channel, 10-bit, with differential mode |
| USART | — | 2 (dual USART, 'P' variant) |
| SPI | — | 1 master/slave |
| TWI (I2C) | — | 1 byte-oriented |
| Timer/Counters | — | 3 with PWM and compare modes |
| Watchdog Timer | — | Yes, programmable |
| Package | — | 44-pin TQFP (10x10 mm) |
| Operating Temperature | — | -40C to +85C (industrial) |
| AEC-Q100 Qualification | — | Grade 1 |
| RoHS Status | — | Compliant |
| In-System Programmable | — | Yes (Flash, Read-While-Write) |
| picoPower Technology | — | Yes |