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Part number atmega644pa-au
BRAND ATMEL Corporation [ATMEL]
Date code 12+
Summary 64-QFN, 8-bitMicrocontroller, High-performance, Low-power, Two 8-bit PWM Channels
Description as follow:
The ATMEGA644PA-AU is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATMEGA644PA-AU achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed. By combining an 8-bit RISC CPU with In-System Self-Programmable Flash on a monolithic chip, the ATMEGA644PA-AU is a powerful microcontroller that provides a highly flexible and cost effective solution to many embedded control applications.
ATMEGA644PA-AU general specifications: (1)supply voltage(Vcc/Vdd): 1.8 V to 5.5 V; (2)Lead Free Status:Lead Free ; (3)RoHS Status:RoHS Compliant ; (4)Program Memory Size:64KB (32K x 16) ; (5)RAM Size:4K x 8 ; (6)Number of I /O:32 ; (7)Package / Case:44-TQFP ; (8)Speed:20MHz ; (9)Oscillator Type:Internal ; (10)Packaging:Tray ; (11)Program Memory Type:FLASH ; (12)EEPROM Size:2K x 8 ; (13)Core Processor:AVR ; (14)Data Converters:A/D 8x10b ; (15)Core Size:8-Bit ; (16)Operating Temperature:-40℃ to 85℃.
ATMEGA644PA-AU features: (1)131 Powerful Instructions - Most Single-clock Cycle Execution; (2)32 x 8 General Purpose Working Registers; (3)Fully Static Operation; (4)Up to 20 MIPS Throughput at 20 MHz; (5)On-chip 2-cycle Multiplier; (6)16/32/64/128K Bytes of In-System Self-programmable Flash program memory; (7)512B/1K/2K/4K Bytes EEPROM; (8)1/2/4/16K Bytes Internal SRAM; (9)Write/Erase Cycles: 10, 000 Flash/ 100, 000 EEPROM; (10)Data retention: 20 years at 85℃/ 100 years at 25℃; (11)Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes; (12)One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode; (13)Real Time Counter with Separate Oscillator; (14)Six PWM Channels; (15)8-channel, 10-bit ADC; (16)Byte-oriented Two-wire Serial Interface; (17)Two Programmable Serial USART; (18)Master/Slave SPI Serial Interface; (19)Programmable Watchdog Timer with Separate On-chip Oscillator; (20)On-chip Analog Comparator; (21)Interrupt and Wake-up on Pin Change; (22)Power-on Reset and Programmable Brown-out Detection; (23)Internal Calibrated RC Oscillator; (24)External and Internal Interrupt Sources.