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X5323S8IZ-2.7 PDF预览

X5323S8IZ-2.7

更新时间： 2024-11-07 22:12:39
品牌 Logo 应用领域
英特矽尔 - INTERSIL 光电二极管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
21页 359K
描述
CPU Supervisor with 32Kb SPI EEPROM

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X5323S8IZ-2.7 数据手册

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X5323, X5325  
®
(Replaces X25323, X25325)  
Data Sheet  
October 27, 2005  
FN8131.1  
DESCRIPTION  
CPU Supervisor with 32Kb SPI EEPROM  
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  
system cost, reduces board space requirements, and  
increases reliability.  
FEATURES  
• Selectable watchdog timer  
• Low V detection and reset assertion  
CC  
—Five standard reset threshold voltages  
—Re-program low V reset threshold voltage  
CC  
using special programming sequence  
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.  
—Reset signal valid to V = 1V  
CC  
• Determine watchdog or low voltage reset with a  
volatile flag bit  
• 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  
• 32Kbits of EEPROM  
The Watchdog Timer provides an independent protec-  
tion mechanism for microcontrollers. When the micro-  
controller 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.  
• 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  
The device’s low V  
detection circuitry protects the  
CC  
—In circuit programmable ROM mode  
• 2MHz SPI interface modes (0,0 & 1,1)  
• Minimize EEPROM programming time  
—32-byte page write mode  
user’s system from low voltage conditions, resetting the  
system when V falls below the minimum V trip  
CC  
CC  
point. RESET/RESET is asserted until V  
returns to  
CC  
proper operating level and stabilizes. Five industry stan-  
dard V thresholds are available, however, Intersil’s  
—Self-timed write cycle  
TRIP  
—5ms write cycle time (typical)  
• 2.7V to 5.5V and 4.5V to 5.5V power supply  
operation  
unique circuits allow the threshold to be reprogrammed  
to meet custom requirements or to fine-tune the thresh-  
old for applications requiring higher precision.  
• Available packages  
—14 Ld TSSOP, 8 Ld SOIC, 8 Ld PDIP  
• Pb-free plus anneal available (RoHS compliant)  
BLOCK DIAGRAM  
Watchdog Transition  
Detector  
Watchdog  
Timer Reset  
WP  
Protect Logic  
RESET/RESET  
X5323 = RESET  
SI  
Data  
Register  
Status  
Register  
SO  
Command  
Decode &  
Control  
Reset &  
Watchdog  
Timebase  
X5325 = RESET  
SCK  
8Kbits  
8Kbits  
CS/WDI  
Logic  
VCC Threshold  
Reset Logic  
16Kbits  
Power-on and  
Low Voltage  
Reset  
V
+
-
CC  
Generation  
V
TRIP  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.  
Copyright Intersil Americas Inc. 2005. All Rights Reserved  
1
All other trademarks mentioned are the property of their respective owners.  
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X5323S8IZ-2.7 替代型号

型号 品牌 替代类型 描述 数据表
X5323S8I-2.7 INTERSIL

完全替代

 CPU Supervisor with 32Kb SPI EEPROM

与X5323S8IZ-2.7相关器件

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X5323S8IZ-2.7A INTERSIL

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X5323S8IZ-2.7A-T RENESAS

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 		1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8, ROHS COMPLIANT, PLASTIC, SOIC-8
X5323S8IZ-2.7A-T1 RENESAS

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 		1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8, ROHS COMPLIANT, PLASTIC, SOIC-8
X5323S8IZ-2.7-T RENESAS

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 		IC,SERIAL EEPROM,4KX8,CMOS,SOP,8PIN,PLASTIC
X5323S8IZ-4.5A INTERSIL

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 		CPU Supervisor with 32Kb SPI EEPROM
X5323S8IZ-4.5A-T RENESAS

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 		IC,SERIAL EEPROM,4KX8,CMOS,SOP,8PIN,PLASTIC
X5323S8IZ-4.5A-T1 RENESAS

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 		1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8, ROHS COMPLIANT, PLASTIC, SOIC-8
X5323S8IZ-T RENESAS

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 		IC,SERIAL EEPROM,4KX8,CMOS,SOP,8PIN,PLASTIC
X5323S8-T1 RENESAS

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 		1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8, PLASTIC, SOIC-8
X5323S8Z INTERSIL

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 		CPU Supervisor with 32Kb SPI EEPROM

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