參數(shù)資料
型號: AT91SAM9G20B-CU
廠商: Atmel
文件頁數(shù): 18/42頁
文件大?。?/td> 0K
描述: IC ARM9 MPU 217-LFBGA
產(chǎn)品培訓(xùn)模塊: SAM9 MPU Boot Solutions & Application Deployment
MCU Product Line Introduction
標(biāo)準(zhǔn)包裝: 126
系列: SAM9G
核心處理器: ARM9
芯體尺寸: 16/32-位
速度: 400MHz
連通性: EBI/EMI,以太網(wǎng),I²C,IrDA,ISI,MMC,SPI,SSC,UART/USART,USB
外圍設(shè)備: DMA,POR,PWM,WDT
輸入/輸出數(shù): 96
程序存儲器容量: 64KB(64K x 8)
程序存儲器類型: ROM
RAM 容量: 96K x 8
電壓 - 電源 (Vcc/Vdd): 0.9 V ~ 1.1 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 4x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 217-LFBGA
包裝: 托盤
配用: AT91SAM9G20-EK-ND - KIT EVAL FOR AT91SAM9G20 MCU
AT91SAM-ICE-ND - EMULATOR FOR AT91 ARM7/ARM9
其它名稱: AT91SAM9G20-CU
AT91SAM9G20-CU-ND
25
6384DS–ATARM–13-Jan-10
AT91SAM9G20 Summary
9.2
Reset Controller
Based on two Power-on-Reset cell
– one on VDDBU and one on VDDCORE
Status of the last reset
– Either general reset (VDDBU rising), wake-up reset (VDDCORE rising), software
reset, user reset or watchdog reset
Controls the internal resets and the NRST pin output
– Allows shaping a reset signal for the external devices
9.3
Shutdown Controller
Shutdown and Wake-Up logic
– Software programmable assertion of the SHDWN pin
– Deassertion Programmable on a WKUP pin level change or on alarm
9.4
Clock Generator
Embeds a Low Power 32768 Hz Slow Clock Oscillator and a Low power RC oscillator
selectable with OSCSEL signal
– Provides the permanent Slow Clock SLCK to the system
Embeds the Main Oscillator
– Oscillator bypass feature
– Supports 3 to 20 MHz crystals
Embeds 2 PLLs
– The PLL A outputs 400-800 MHz clock
– The PLL B outputs 100 MHz clock
– Both integrate an input divider to increase output accuracy
– PLL A and PLL B embed their own filters
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