參數(shù)資料
型號: AT90S4433-8AC
廠商: Atmel
文件頁數(shù): 73/126頁
文件大小: 0K
描述: IC MCU 4K FLSH 8MHZ A/D 32TQFP
標(biāo)準(zhǔn)包裝: 250
系列: AVR® 90S
核心處理器: AVR
芯體尺寸: 8-位
速度: 8MHz
連通性: SPI,UART/USART
外圍設(shè)備: 欠壓檢測/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 20
程序存儲器容量: 4KB(2K x 16)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 256 x 8
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 4 V ~ 6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 6x10b
振蕩器型: 外部
工作溫度: 0°C ~ 70°C
封裝/外殼: 32-TQFP
包裝: 托盤
50
AT90S/LS4433
1042H–AVR–04/03
pins are inputs. When SS is driven high, externally all pins are inputs and the SPI is
passive, which means that it will not receive incoming data. Note that the SPI logic will
be reset once the SS pin is brought high. If the SS pin is brought high during a
transmission, the SPI will stop sending and receiving immediately and both data
received and data sent must be considered as lost.
Data Modes
There are four combinations of SCK phase and polarity with respect to serial data,
which are determined by control bits CPHA and CPOL. The SPI data transfer formats
are shown in Figure 38 and Figure 39.
Figure 38. SPI Transfer Format with CPHA = 0 and DORD = 0
Figure 39. SPI Transfer Format with CPHA = 1 and DORD = 0
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