參數(shù)資料
型號: AT32UC3A3256-CTUR
廠商: Atmel
文件頁數(shù): 11/94頁
文件大小: 0K
描述: IC MCU 256KB FLASH 144TBGA
產(chǎn)品培訓模塊: MCU Product Line Introduction
AVR® UC3 Introduction
標準包裝: 1
系列: AVR®32 UC3 A3
核心處理器: AVR
芯體尺寸: 32-位
速度: 66MHz
連通性: EBI/EMI,I²C,IrDA,MMC,SPI,SSC,UART/USART,USB OTG
外圍設(shè)備: 欠壓檢測/復位,DMA,POR,WDT
輸入/輸出數(shù): 110
程序存儲器容量: 256KB(256K x 8)
程序存儲器類型: 閃存
RAM 容量: 128K x 8
電壓 - 電源 (Vcc/Vdd): 1.65 V ~ 1.95 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 144-TFBGA
包裝: 標準包裝
其它名稱: AT32UC3A3256-CTURDKR
19
32072SH–AVR32–10/2012
AT32UC3A3
3.4
I/O Line Considerations
3.4.1
JTAG Pins
TMS and TDI pins have pull-up resistors. TDO pin is an output, driven at up to VDDIO, and has
no pull-up resistor.
3.4.2
RESET_N Pin
The RESET_N pin is a schmitt input and integrates a permanent pull-up resistor to VDDIO. As
the product integrates a power-on reset cell, the RESET_N pin can be left unconnected in case
no reset from the system needs to be applied to the product.
3.4.3
TWI Pins
When these pins are used for TWI, the pins are open-drain outputs with slew-rate limitation and
inputs with inputs with spike filtering. When used as GPIO pins or used for other peripherals, the
pins have the same characteristics as other GPIO pins.
3.4.4
GPIO Pins
All the I/O lines integrate a programmable pull-up resistor
. Programming of this pull-up resistor is
performed independently for each I/O line through the I/O Controller. After reset, I/O lines default
as inputs with pull-up resistors disabled, except when indicated otherwise in the column “Reset
State” of the I/O Controller multiplexing tables.
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