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X5645S14-2.7 PDF预览

X5645S14-2.7

更新时间： 2024-01-26 05:17:54
品牌 Logo 应用领域
XICOR 监控可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数 文件大小 规格书
19页 117K
描述
CPU Supervisor with 64Kbit SPI EEPROM

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中文翻译

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X5645S14-2.7 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：SOIC包装说明：PLASTIC, SOIC-14
针数：14Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.75可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY MANAGEMENT CIRCUITJESD-30 代码：R-PDSO-G14
JESD-609代码：e0长度：8.65 mm
湿度敏感等级：1信道数量：1
功能数量：1端子数量：14
最高工作温度：70 °C最低工作温度：
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：240认证状态：Not Qualified
座面最大高度：1.75 mm最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：2.7 V标称供电电压 (Vsup)：5 V
表面贴装：YES温度等级：COMMERCIAL
端子面层：Tin/Lead (Sn/Pb)端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3.9 mm
Base Number Matches：1

X5645S14-2.7 数据手册

 浏览型号X5645S14-2.7的Datasheet PDF文件第2页浏览型号X5645S14-2.7的Datasheet PDF文件第3页浏览型号X5645S14-2.7的Datasheet PDF文件第4页浏览型号X5645S14-2.7的Datasheet PDF文件第5页浏览型号X5645S14-2.7的Datasheet PDF文件第6页浏览型号X5645S14-2.7的Datasheet PDF文件第7页 
Replaces X25643/X25645  
X5643/X5645  
CPU Supervisor with 64Kbit SPI EEPROM  
FEATURES  
• Selectable watchdog timer  
• Low V detection and reset assertion  
DESCRIPTION  
These devices combine four popular functions, Power-  
on Reset Control, Watchdog Timer, Supply Voltage  
Supervision, and Block Lock Protect Serial EEPROM  
Memory in one package. This combination lowers sys-  
tem cost, reduces board space requirements, and  
increases reliability.  
CC  
—Five standard reset threshold voltages  
—Re-program low V reset threshold voltage  
CC  
using special programming sequence  
—Reset signal valid to V = 1V  
CC  
• Determine watchdog or low voltage reset with a  
volatile flag bit  
Applying power to the device activates the power on  
reset circuit which holds RESET/RESET active for a  
period of time. This allows the power supply and oscilla-  
tor to stabilize before the processor can execute code.  
• Long battery life with low power consumption  
—<50µA max standby current, watchdog on  
—<1µA max standby current, watchdog off  
—<400µA max active current during read  
• 64Kbits of EEPROM  
• Built-in inadvertent write protection  
—Power-up/power-down protection circuitry  
—Protect 0, 1/4, 1/2 or all of EEPROM array with  
Block Lock™ protection  
—In circuit programmable ROM mode  
• 2MHz SPI interface modes (0,0 & 1,1)  
• Minimize EEPROM programming time  
—32-byte page write mode  
The Watchdog Timer provides an independent protection  
mechanism for microcontrollers. When the microcon-  
troller fails to restart a timer within a selectable time out  
interval, the device activates the RESET/RESET signal.  
The user selects the interval from three preset values.  
Once selected, the interval does not change, even after  
cycling the power.  
The device’s low V  
detection circuitry protects the  
CC  
user’s system from low voltage conditions, resetting  
the system when V  
falls below the minimum V  
CC  
CC  
—Self-timed write cycle  
trip point. RESET/RESET is asserted until V  
returns  
CC  
—5ms write cycle time (typical)  
• 2.7V to 5.5V and 4.5V to 5.5V power supply  
operation  
• Available packages  
—8-lead PDIP, 14-lead SOIC  
to proper operating level and stabilizes. Five industry  
standard V thresholds are available, however,  
TRIP  
Xicor’s unique circuits allow the threshold to be repro-  
grammed to meet custom requirements or to fine-tune  
the threshold for applications requiring higher precision.  
BLOCK DIAGRAM  
Watchdog Transition  
Detector  
Watchdog  
Timer Reset  
WP  
Protect Logic  
RESET/RESET  
SI  
Data  
Register  
Status  
Register  
SO  
Command  
Decode &  
Control  
Reset &  
Watchdog  
Timebase  
X5643 = RESET  
X5645 = RESET  
SCK  
16Kbits  
16Kbits  
CS/WDI  
Logic  
V
Threshold  
Reset logic  
CC  
32Kbits  
Power On and  
Low Voltage  
Reset  
V
+
-
CC  
Generation  
V
TRIP  
Characteristics subject to change without notice. 1 of 19  
REV 1.1.1 3/5/01  
www.xicor.com  
1234567...19

中文翻译

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