ATMEGA644P-15AZ vs ATMEGA644PA-AU Comparison
Detailed side-by-side comparison of ATMEGA644P-15AZ by Microchip Technology and ATMEGA644PA-AU 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-15AZ - 8-bit AVR MCU 64KB 16MHz TQFP-44 | Microchip
ATMEGA644P-15AZ ObsoleteMicrochip Technology
ATMEGA644PA-AU - 8-bit AVR MCU, 20MHz, 64KB Flash | Microchip
ATMEGA644PA-AU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA644P-15AZ | ATMEGA644PA-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Obsolete | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.98 | $4.61 |
| Core | AVR 8-bit | — |
| Core Size | 8-Bit | — |
| Speed | 16 MHz | — |
| Program Memory Size | 64 KB (32K x 16) Flash | — |
| RAM Size | 4 KB | — |
| EEPROM Size | 2 KB | — |
| Number of I/O | 32 | — |
| Package / Case | 44-TQFP (10x10 mm) | — |
| Operating Voltage | 4.5 V to 5.5 V (15 MHz speed grade) | — |
| Oscillator Type | Internal | — |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT | — |
| Connectivity | I2C, SPI, 2x USART | — |
| ADC | 10-bit, up to 8 channels | 8-channel, 10-bit |
| Architecture Features | 131 instructions, most single-cycle, 1 MIPS/MHz | — |
| Technology | picoPower low-power CMOS | — |
| Debug Interface | JTAG (on-chip debug) | — |
| Packaging | Tape & Reel (TR) | — |
| Qualification | Verified during product qualification per AEC-Q100 grade 1 (per datasheet family notes) | — |
| Programmer Compatibility | AVR ISP / STK600 / XPRO toolchain | — |
| Core Architecture | — | AVR 8-bit RISC |
| Family | — | ATmega |
| Series | — | ATmega644P / picoPower |
| Maximum Clock Frequency | — | 20 MHz |
| Program Memory (Flash) | — | 64 KB (32K x 16) |
| SRAM | — | 4 KB |
| EEPROM | — | 2 KB |
| Supply Voltage Range | — | 1.8 V to 5.5 V |
| Operating Temperature | — | -40C to +85C (industrial) |
| GPIO Pins | — | 32 |
| USART | — | 2 |
| I2C (TWI) | — | 1 |
| SPI | — | 1 |
| Timer/Counters | — | 3 (with PWM and compare modes) |
| Package | — | 44-pin TQFP (10x10 mm) |
| Mounting Type | — | Surface Mount |
| MIPS | — | 20 MIPS at 20 MHz |
| Programming Interface | — | ISP / ICSP / JTAG / debugWIRE |
| RoHS Status | — | Compliant |