參數(shù)資料
型號(hào)： X5645
元件分類(lèi)： CPU監(jiān)測(cè)
英文描述： RTC Module With CPU Supervisor
中文描述： 時(shí)鐘模塊CPU監(jiān)控
文件頁(yè)數(shù)： 1/19頁(yè)
文件大?。?/td> 312K
代理商： X5645
1
FN8135.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-352-6832
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
X5643, X5645
(Replaces X25643, X25645)
CPU Supervisor with 64Kbit SPI EEPROM
FEATURES
Selectable watchdog timer
Low V
CC
detection and reset assertion
—Five standard reset threshold voltages
—Re-program low V
CC
reset threshold voltage
using special programming sequence
—Reset signal valid to V
CC
= 1V
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
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
—Self-timed write cycle
—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
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.
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.
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
CC
detection circuitry protects the
user’s system from low voltage conditions, resetting
the system when V
CC
falls below the minimum V
CC
trip point. RESET/RESET is asserted until V
CC
returns
to proper operating level and stabilizes. Five industry
standard V
TRIP
thresholds are available, however,
Intersil’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
Timer Reset
Data
Register
Command
Decode &
Control
Logic
SI
SO
SCK
CS/WDI
V
CC
Reset &
Watchdog
Timebase
Power-on and
Low Voltage
Generation
V
TRIP
+
-
RESET/RESET
Reset
Status
Register
Protect Logic
16Kbits
16Kbits
32Kbits
E
Watchdog Transition
Detector
WP
V
CC
Threshold
Reset logic
X5643 = RESET
X5645 = RESET
Data Sheet
July 18, 2005
相關(guān)PDF資料
PDF描述
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X5648S14-1.8 SPI Serial EEPROM with Supervisory Features
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
X5645P 功能描述:IC CPU SUPRV 64K EE RST HI 8DIP RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類(lèi)型:簡(jiǎn)單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:開(kāi)路漏極或開(kāi)路集電極 復(fù)位:低有效 復(fù)位超時(shí):標(biāo)準(zhǔn)傳輸延遲為 60 µs 電壓 - 閥值:3V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:Digi-Reel® 其它名稱(chēng):LM8364BALMF30DKR
X5645P-4.5A 制造商:XICOR 制造商全稱(chēng):Xicor Inc. 功能描述:CPU Supervisor with 64Kbit SPI EEPROM
X5645S14 功能描述:IC CPU SUPRV 64K EE RST HI SO14 RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類(lèi)型:簡(jiǎn)單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:開(kāi)路漏極或開(kāi)路集電極 復(fù)位:低有效 復(fù)位超時(shí):標(biāo)準(zhǔn)傳輸延遲為 60 µs 電壓 - 閥值:3V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:Digi-Reel® 其它名稱(chēng):LM8364BALMF30DKR
X5645S14-1.8 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:SPI Serial EEPROM with Supervisory Features
X5645S14-2.7 功能描述:IC CPU SUPRV 64K EE RST HI SO14 RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類(lèi)型:簡(jiǎn)單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:開(kāi)路漏極或開(kāi)路集電極 復(fù)位:低有效 復(fù)位超時(shí):標(biāo)準(zhǔn)傳輸延遲為 60 µs 電壓 - 閥值:3V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:Digi-Reel® 其它名稱(chēng):LM8364BALMF30DKR
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