- 您现在的位置：买卖IC网 > PDF目录69333 > SAF-C868A-1SGBA (INFINEON TECHNOLOGIES AG) 8-BIT, 40 MHz, MICROCONTROLLER, PDSO28 PDF资料下载
参数资料
| 型号： | SAF-C868A-1SGBA |
| 厂商： | INFINEON TECHNOLOGIES AG |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, 40 MHz, MICROCONTROLLER, PDSO28 |
| 封装： | PLASTIC, SO-28 |
| 文件页数： | 61/82页 |
| 文件大小： | 1252K |
| 代理商： | SAF-C868A-1SGBA |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页当前第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页
C868
Data Sheet
64
V 1.0, 2003-05
SFR SCUWDT) consecutively. This double instruction sequence has been implemented
to increase system security.
It must be noted, however, that the watchdog timer is halted during the idle mode and
power-down mode of the processor (see section "Power Saving Modes"). It is not
possible to use the idle mode in combination with the watchdog timer function.
Therefore, even the watchdog timer cannot reset the device when one of the power
saving modes has been entered accidentally.
The time period for an overflow of the Watchdog Timer is programmable in two ways :
– the input frequency to the Watchdog Timer can be selected via bit WDTIN in
register WDTCON to be either f
SYS/2 or fSYS/128.
– the reload value WDTREL for the high byte of WDT can be programmed in register
WDTCON.
The period PWDT between servicing the Watchdog Timer and the next overflow can
therefore be determined by the following formula:
[0.1]
Table 14 lists the possible ranges for the watchdog time which can be achieved using a
certain module clock. Some numbers are rounded to 3 significant digits.
For safety reasons, the user is advised to rewrite WDTCON each time before the
Watchdog Timer is serviced.
Table 14
Watchdog Time Ranges
Reload value
in WDTREL
Prescaler for f
SYS
2 (WDTIN = ‘0’)
128 (WDTIN = ‘1’)
40 MHz
20 MHz
16 MHz
40 MHz
20 MHz
16 MHz
FFH
12.8 s
25.6 s
32.0 s
819.2 s 1.64 ms 2.05 ms
7FH
1.65 ms 3.3 ms
4.13 ms
105.7 ms 211.3 ms 264 ms
00H
3.28 ms 6.55 ms 8.19 ms 209.7 ms 419.4 ms 524 ms
PWDT =
f
SYS
2(1 +WDTIN*6) * (216 - WDTREL * 28)
相关PDF资料 |
PDF描述 |
|---|---|
| SAF-C868P-1SGBA | 8-BIT, 40 MHz, MICROCONTROLLER, PDSO28 |
| SAK-C868A-1SGBA | 8-BIT, 40 MHz, MICROCONTROLLER, PDSO28 |
| SAK-C868-1RRBA | 8-BIT, MROM, 40 MHz, MICROCONTROLLER, PDSO38 |
| SAF-TC1130-L150EB-GBB | 32-BIT, FLASH, 150 MHz, MICROCONTROLLER, PBGA208 |
| SAF-XC164D-32F40F | 16-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP100 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SAF-C868P-1SR BA | 功能描述:IC MCU 8BIT ROM/LESS TSSOP-38-1 RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:C5xx/C8xx 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:260 系列:73S12xx 核心处理器:80515 芯体尺寸:8-位 速度:24MHz 连通性:I²C，智能卡，UART/USART，USB 外围设备:LED，POR，WDT 输入/输出数:9 程序存储器容量:64KB（64K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:2K x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 5.5 V 数据转换器:- 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:68-VFQFN 裸露焊盘 包装:管件 |
| SAFC869MF70T | 制造商:MURATA 制造商全称:Murata Manufacturing Co., Ltd. 功能描述:CERAMIC MICROWAVE FILTERS SAW FILTERS |
| SAFC881.5MC90T | 制造商:MURATA 制造商全称:Murata Manufacturing Co., Ltd. 功能描述:CERAMIC MICROWAVE FILTERS SAW FILTERS |
| SAFC881.5MD90T | 制造商:MURATA 制造商全称:Murata Manufacturing Co., Ltd. 功能描述:CERAMIC MICROWAVE FILTERS SAW FILTERS |
| SAFC881.5MWC90T | 制造商:MURATA 制造商全称:Murata Manufacturing Co., Ltd. 功能描述:CERAMIC MICROWAVE FILTERS SAW FILTERS |
发布紧急采购，3分钟左右您将得到回复。