參數(shù)資料
型號(hào): AT91SAM7X128-CU-999
廠商: Atmel
文件頁數(shù): 6/44頁
文件大?。?/td> 0K
描述: IC MCU ARM7 128KB FLASH 100TFBGA
產(chǎn)品培訓(xùn)模塊: SAM9 MPU Boot Solutions & Application Deployment
AT91SAM7X and SAM7XC Flash-based Microcontrollers
MCU Product Line Introduction
標(biāo)準(zhǔn)包裝: 3,000
系列: SAM7X
核心處理器: ARM7
芯體尺寸: 16/32-位
速度: 55MHz
連通性: CAN,以太網(wǎng),I²C,SPI,SSC,UART/USART,USB
外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,DMA,POR,PWM,WDT
輸入/輸出數(shù): 62
程序存儲(chǔ)器容量: 128KB(128K x 8)
程序存儲(chǔ)器類型: 閃存
RAM 容量: 32K 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: 100-TFBGA
包裝: 帶卷 (TR)
配用: AT91SAM-ICE-ND - EMULATOR FOR AT91 ARM7/ARM9
AT91SAM7X-EK-ND - KIT EVAL FOR AT91SAM7X256/128
14
6120GS–ATARM–07-Apr-11
SAM7X512/256/128 Summary
6.5
PIO Controller Lines
All the I/O lines, PA0 to PA30 and PB0 to PB30, are 5V-tolerant and all integrate a programma-
ble pull-up resistor. Programming of this pull-up resistor is performed independently for each I/O
line through the PIO controllers.
5V-tolerant means that the I/O lines can drive voltage level according to VDDIO, but can be
driven with a voltage of up to 5.5V. However, driving an I/O line with a voltage over VDDIO while
the programmable pull-up resistor is enabled will create a current path through the pull-up resis-
tor from the I/O line to VDDIO. Care should be taken, in particular at reset, as all the I/O lines
default to input with pull-up resistor enabled at reset.
6.6
I/O Lines Current Drawing
The PIO lines PA0 to PA3 are high-drive current capable. Each of these I/O lines can drive up to
16 mA permanently.
The remaining I/O lines can draw only 8 mA.
However, the total current drawn by all the I/O lines cannot exceed 200 mA.
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