參數(shù)資料
型號(hào)： X5643(中文)
元件分類： 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)： 1/23頁(yè)
文件大?。?/td> 114K
代理商： X5643(中文)
Replaces X25643/X25645
ó
9900-3002.5 2/12/99 T0/C0/D0
Xicor, Inc. 1999 Patents Pending
1
Characteristics subject to change without notice
X5643/X5645
CPU Supervisor with 64Kb SPI EEPROM
FEATURES
Selectable Watchdog Timer
Low Vcc Detection and Reset Assertion
—Five Standard Reset Threshold Voltages
—Re-program Low Vcc Reset Threshold Voltage
using special programming sequence
—Reset Signal Valid to Vcc=1V
Determine Watchdog or Low Voltage Reset with a
Volatile Flag bit
Long Battery Life With Low Power Consumption
—<50
m
A Max Standby Current, Watchdog On
—<1
m
A Max Standby Current, Watchdog Off
—<400
m
A 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)
1.8V to 3.6V, 2.7V to 5.5V and 4.5V to 5.5V Power
Supply Operation
Available Packages
—14-Lead SOIC, 8-Lead PDIP
TM
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 micro-control-
ler 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 Vcc detection circuitry protects the
user’s system from low voltage conditions, resetting the
system when Vcc falls below the minimum Vcc trip point.
RESET/RESET is asserted until Vcc returns to proper
operating level and stabilizes. Five industry standard
V
TRIP
thresholds are available, however, Xicor’s unique
circuits allow the thresold to be reprogrammed 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
16K BITS
16K BITS
32K BITS
E
WATCHDOG TRANSITION
DETECTOR
WP
X5643 = RESET
X5645 = RESET
VCC THRESHOLD
RESET LOGIC
相關(guān)PDF資料
PDF描述
X5643 RTC Module With CPU Supervisor
X5645 RTC Module With CPU Supervisor
X5648S8-2.7A SPI Serial EEPROM with Supervisory Features
X5648S8I-4.5A SPI Serial EEPROM with Supervisory Features
X5648V14 Industrial Control IC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
X5643P 功能描述:IC CPU SUPRV 64K EE RST LO 8DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:簡(jiǎn)單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:開路漏極或開路集電極 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:LM8364BALMF30DKR
X5643P-4.5A 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:CPU Supervisor with 64Kbit SPI EEPROM
X5643S14 功能描述:IC CPU SUPRV 64K EE RST LO SO14 RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:簡(jiǎn)單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:開路漏極或開路集電極 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:LM8364BALMF30DKR
X5643S14-1.8 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SPI Serial EEPROM with Supervisory Features
X5643S14-2.7 功能描述:IC CPU SUPRV 64K EE RST LO SO14 RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:簡(jiǎn)單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:開路漏極或開路集電極 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:LM8364BALMF30DKR
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

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

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

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*