厂商: Atmel Atmel
分类: 半导体集成电路 - IC
描述: 8-bit microcontrollers - mcu 32kb In-system flash 20mhz 1.8V-5.5V
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Manufacturer: Atmel
Product Category: 8-bit Microcontrollers - MCU
RoHS: Yes
A/D Bit Size: 10 bit
Core: AVR
Data Bus Width: 8 bit
Maximum Clock Frequency: 20 MHz
Program Memory Size: 32 kB
Data RAM Size: 2 kB
On-Chip ADC: Yes
Operating Supply Voltage: 1.8 V to 5.5 V
Maximum Operating Temperature: + 85 C
Package / Case: TQFP-32
Mounting Style: SMD/SMT
A/D Channels Available: 8
Brand: Atmel
Data RAM Type: SRAM
Data ROM Size: 1 kB
Interface Type: I2C, SPI, USART
Minimum Operating Temperature: - 40 C
Number of Programmable I/Os: 23
Number of Timers: 3
Packaging: Tray
Processor Series: megaAVR
Program Memory Type: Flash
Series: ATMEGA328
Factory Pack Quantity: 250
Supply Voltage - Max: 5.5 V
Supply Voltage - Min: 1.8 V
Tradename: ATMEGA
Atmel 8-bit Microcontroller with 4/8/16/32KBytes  
In-System Programmable Flash  
ATmega48A; ATmega48PA; ATmega88A; ATmega88PA;  
ATmega168A; ATmega168PA; ATmega328; ATmega328P  
High Performance, Low Power Atmel®AVR® 8-Bit Microcontroller Family  
Advanced RISC Architecture  
– 131 Powerful Instructions – Most Single Clock Cycle Execution  
– 32 x 8 General Purpose Working Registers  
– Fully Static Operation  
– Up to 20 MIPS Throughput at 20MHz  
– On-chip 2-cycle Multiplier  
High Endurance Non-volatile Memory Segments  
– 4/8/16/32KBytes of In-System Self-Programmable Flash program memory  
– 256/512/512/1KBytes EEPROM  
– 512/1K/1K/2KBytes Internal SRAM  
– Write/Erase Cycles: 10,000 Flash/100,000 EEPROM  
– Data retention: 20 years at 85C/100 years at 25C(1)  
– Optional Boot Code Section with Independent Lock Bits  
In-System Programming by On-chip Boot Program  
True Read-While-Write Operation  
– Programming Lock for Software Security  
Atmel® QTouch® library support  
– Capacitive touch buttons, sliders and wheels  
– QTouch and QMatrix® acquisition  
– Up to 64 sense channels  
Peripheral Features  
– Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode  
– One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode  
– Real Time Counter with Separate Oscillator  
– Six PWM Channels  
– 8-channel 10-bit ADC in TQFP and QFN/MLF package  
Temperature Measurement  
– 6-channel 10-bit ADC in PDIP Package  
Temperature Measurement  
– Programmable Serial USART  
– Master/Slave SPI Serial Interface  
– Byte-oriented 2-wire Serial Interface (Philips I2C compatible)  
– Programmable Watchdog Timer with Separate On-chip Oscillator  
– On-chip Analog Comparator  
– Interrupt and Wake-up on Pin Change  
Special Microcontroller Features  
– Power-on Reset and Programmable Brown-out Detection  
– Internal Calibrated Oscillator  
– External and Internal Interrupt Sources  
– Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby  
I/O and Packages  
– 23 Programmable I/O Lines  
– 28-pin PDIP, 32-lead TQFP, 28-pad QFN/MLF and 32-pad QFN/MLF  
Operating Voltage:  
– 1.8 - 5.5V  
Temperature Range:  
– -40C to 85C  
Speed Grade:  
– 0 - 4MHz@1.8 - 5.5V, 0 - 10MHz@2.7 - 5.5.V, 0 - 20MHz @ 4.5 - 5.5V  
Power Consumption at 1MHz, 1.8V, 25C  
– Active Mode: 0.2mA  
– Power-down Mode: 0.1µA  
– Power-save Mode: 0.75µA (Including 32kHz RTC)