參數(shù)資料
型號(hào): ATSAM3SD8BA-MU
廠商: Atmel
文件頁(yè)數(shù): 31/57頁(yè)
文件大?。?/td> 0K
描述: IC MCU 2X256KB CORTEX-M3 64-QFN
標(biāo)準(zhǔn)包裝: 260
系列: SAM3S
核心處理器: ARM? Cortex?-M3
芯體尺寸: 32-位
速度: 64MHz
連通性: I²C,IrDA,MMC,SPI,SSC,UART/USART,USB
外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,DMA,I²S,POR,PWM,WDT
輸入/輸出數(shù): 47
程序存儲(chǔ)器容量: 512KB(512K x 8)
程序存儲(chǔ)器類(lèi)型: 閃存
RAM 容量: 64K x 8
電壓 - 電源 (Vcc/Vdd): 1.62 V ~ 1.95 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 11x12b,D/A 2x12b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 64-VFQFN 裸露焊盤(pán)
包裝: 托盤(pán)
37
11090BS–ATARM–22-Oct-13
SAM3S8/SD8 Summary
10.9
Real-Time Timer
Real-Time Timer, allowing backup of time with different accuracies
– 32-bit Free-running backup Counter
– Integrates a 16-bit programmable prescaler running on slow clock
– Alarm Register capable to generate a wake-up of the system through the Shut Down
Controller
10.10 Real Time Clock
Low power consumption
Full asynchronous design
Two hundred year Gregorian and Persian calendar
Programmable Periodic Interrupt
Trimmable 32.7682 kHz crystal oscillator clock source
Alarm and update parallel load
Control of alarm and update Time/Calendar Data In
Waveform output capability on GPIO pins in low power modes
10.11 General-Purpose Backed-up Registers
Eight 32-bit backup general-purpose registers
10.12 Nested Vectored Interrupt Controller
Thirty maskable external interrupts
Sixteen priority levels
Processor state automatically saved on interrupt entry, and restored on
Dynamic reprioritizing of interrupts
Priority grouping.
– selection of pre-empting interrupt levels and non pre-empting interrupt levels.
Support for tail-chaining and late arrival of interrupts.
– back-to-back interrupt processing without the overhead of state saving and
restoration between interrupts.
Processor state automatically saved on interrupt entry, and restored on interrupt exit, with no
instruction overhead.
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