參數(shù)資料
型號： SAL-XC866L-4FRA
廠商： INFINEON TECHNOLOGIES AG
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 75 MHz, MICROCONTROLLER, PDSO38
封裝： GREEN, PLASTIC, TSSOP-38
文件頁數(shù)： 80/113頁
文件大?。?/td> 2289K
代理商： SAL-XC866L-4FRA
SAL-XC866
Functional Description
PRELIMINARY
Data Sheet
65
V1.0, 2011-02
If the WDT is not serviced before the timer overflow, a system malfunction is assumed.
As a result, the WDT NMI is triggered (assert WDTTO) and the reset prewarning is
entered. The prewarning period lasts for 30H count, after which the system is reset
(assert WDTRST).
The WDT has a “programmable window boundary” which disallows any refresh during
the WDT’s count-up. A refresh during this window boundary constitutes an invalid
access to the WDT, causing the reset prewarning to be entered but without triggering the
WDT NMI. The system will still be reset after the prewarning period is over. The window
boundary is from 0000H to the value obtained from the concatenation of WDTWINB and
00H.
After being serviced, the WDT continues counting up from the value (<WDTREL> * 28).
The time period for an overflow of the WDT is programmable in two ways:
the input frequency to the WDT can be selected to be either fPCLK/2 or fPCLK/128
the reload value WDTREL for the high byte of WDT can be programmed in register
WDTREL
The period, PWDT, between servicing the WDT and the next overflow can be determined
by the following formula:
If the Window-Boundary Refresh feature of the WDT is enabled, the period PWDT
between servicing the WDT and the next overflow is shortened if WDTWINB is greater
than WDTREL, see Figure 27. This period can be calculated using the same formula by
replacing WDTREL with WDTWINB. For this feature to be useful, WDTWINB should not
be smaller than WDTREL.
Figure 27
WDT Timing Diagram
P
WDT
2 1WDTIN
+6
×
()
216
WDTREL
–28
×
()
×
f
PCLK
------------------------------------------------------------------------------------------------------
=
WDTREL
WDTWINB
time
Count
FFFF
H
No refresh
allowed
Refresh allowed
相關(guān)PDF資料
PDF描述
SAL-XC886C-6FFA5V 8-BIT, FLASH, 80 MHz, MICROCONTROLLER, PQFP48
SAL-XC886CLM-8FFA5V 8-BIT, FLASH, 80 MHz, MICROCONTROLLER, PQFP48
SAL-XC886C-8FFA5V 8-BIT, FLASH, 80 MHz, MICROCONTROLLER, PQFP48
SARCC433M92BXP0R12 1-PORT SAW RESONATOR, 433.92 MHz
SARCC315M00BXP0R05 1-PORT SAW RESONATOR, 315 MHz
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAL-XC886-8FFA 5V AC 功能描述:8位微控制器 -MCU 8-Bit Single Chip Microcontroller RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
SAL-XC886CLM 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit Single Chip Microcontroller
SAL-XC886CLM-8FFA 5V AC 功能描述:8位微控制器 -MCU 8-Bit Single Chip Microcontroller RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
SAL-XC886CM-8FFA 5V AC 功能描述:8位微控制器 -MCU 8-Bit Single Chip Microcontroller RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
SAL-XC886LM-8FFA 5V AC 功能描述:8位微控制器 -MCU 8-Bit Single Chip Microcontroller RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*