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參數(shù)資料
| 型號： | X40620 |
| 元件分類： | CPU監(jiān)測 |
| 英文描述： | RTC Module With CPU Supervisor |
| 中文描述： | 時鐘模塊CPU監(jiān)控 |
| 文件頁數(shù)： | 1/17頁 |
| 文件大?。?/td> | 350K |
| 代理商： | X40620 |
9900-3003.5 4/24/00 EP
Xicor, Inc. 2000 Patents Pending
Characteristics subject to change without notice.
1 of 17
64K
X40620
BLOCK DIAGRAM
Command
Decode
and
Control
Logic
HV Generation
Timing and Control
X
Y Decoder
Data Register
Write Control
Logic
WP
SCL
SDA
V
CC
V2FAIL
(V
CC
) Control Signal
V2MON
RESET
Power on and
Low Voltage
Generation
V
2TRIP
+
-
Reset
V
TRIP
+
-
Reset &
Watchdog
Timebase
Watchdog
Timer Reset
EEPROM Array
(64Kbits)
Dual Voltage CPU Supervisor with 64K Serial EEPROM
FEATURES
Dual Voltage Detection and Reset Assertion
—Three standard reset threshold settings. (3.1V/
2.6V, 3.1V/1.7V, 2.9V/2.3V)
—Adjust low voltage reset threshold voltages
using special programming sequence
—RESET signal valid down to V
Watchdog Timer (150ms)
Power On Reset (150ms)
Low Power CMOS
—10μA typical standby current, watchdog on
—400μA typical standby current, watchdog off
64kbit 2-Wire Serial EEPROM
—1MHz serial interface speed
—64-byte page write mode
—Self-timed write cycle
—5ms write cycle time (typical)
2.5 to 3.7V Power Supply Operation
8-Lead TSSOP package
CC
=1V
DESCRIPTION
The X40620 combines several functions into one
device. The first is a dual voltage monitoring, power-on
reset control, watchdog timer and 64Kbit serial
EEPROM memory in one package. This combination
lowers system cost, reduces board space require-
ments, and increases reliability.
Applying voltage to V
circuit which holds RESET active for a period of time.
This allows the power supply and system oscillator to
stabilize before the processor can execute code.
CC
activates the power on reset
Low V
from low voltage conditions, resetting the system when
V
CC
falls below the set minimum Vtrip point. RESET is
active until V
CC
returns to proper operating level and
stabilizes.
CC
detection circuitry protects the user’s system
A second voltage monitor circuit (V2MON) tracks the
unregulated supply to provide a power fail warning or
monitors different power supply voltage. When the
second monitored voltage drops below a preset
V2
TRIP
voltage. V2FAIL is active until V2 returns to
proper operating level and above the V2
TRIP
voltage.
Five common low voltage combinations are available,
however, Xicor’s unique circuits allows the threshold
for either voltage monitor to be reprogrammed to meet
special needs or to fine-tune the threshold for applica-
tions requiring higher precision.
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PDF描述 |
|---|---|
| X4163 | RTC Module With CPU Supervisor |
| X4165 | RTC Module With CPU Supervisor |
| X4165 | 16MHZ, MLF, IND TEMP(MCU AVR) |
| X4165S8 | CPU Supervisor with 16K EEPROM |
| X4165S8-2.7 | CPU Supervisor with 16K EEPROM |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| X40620V8-2.9 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| X40620V8-3.1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| X40620V8-3.1A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| X40620V8E-2.9 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| X40620V8E-3.1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
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