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參數資料
| 型號： | ZXCM209LF |
| 英文描述： | Voltage Detector |
| 中文描述： | 電壓檢測器 |
| 文件頁數： | 1/8頁 |
| 文件大小： | 311K |
| 代理商： | ZXCM209LF |
ISSUE 2 - MARCH 2000
ZXCM209
ZXCM210
DESCRIPTION
The ZXCM209/210 are three terminal supervisory
circuits used to monitor the power supplies in
microprocessor and digital systems. They provide a
high performance economical solution when used
with 5V, 3V or lower powered circuits. Reset
thresholds suitable for operation with a variety of
supply voltages are available.
These devices provide a reset signal whenever the
supply voltage falls below a preset threshold, keeping
it asserted for a minimum delay period of 140ms after
the supply has risen above the reset level. The
ZXCM209 has an active-low RESET output (which is
guaranteed to be in the correctstate forsupplies down
to 1V), while the ZXCM210 has an active-high RESET
output.
Theresetcomparatorhas inbuilthysteresis to prevent
erratic operation and is designed to ignore supply
transients. Low supply current (typically 2μA) makes
the ZXCM209/210 devices ideal for use in portable
equipment. They are available in a 3-pin SOT23
surface mount package with an industry standard
pinout.
FEATURES
Enhanced alternative to MAX809/810 and similar
parts
Precision monitoring of 5V, 3.3V, 3V power
supply voltages
1% threshold tolerance
2μA typical supply current
140ms minimum power on reset pulse width
Alternative minimum pulse widths available,
contact your local sales office for availability
RESET LOW Output (ZXCM209)
RESET HIGH Output (ZXCM210)
Power supply transient immunity
No latch up
No external components
3-Pin SOT23 package
APPLICATIONS
Computer systems
Controllers
Instrumentation
Microprocessor power monitoring
Microcontroller power monitoring
Power supplies
Portable/Battery-powered equipment
Automotive
VERY LOW POWER MICROPROCESSOR RESET DEVICES
APPLICATION CIRCUIT
v
cc
ZXCM
Reset
Output
Gnd
v
cc
v
cc
Micro
Reset
Input
Gnd
1
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| ZXCM209LFTA | IC-SM-SUPERVISORY CIRCUIT |
| ZXCM209MF | Voltage Detector |
| ZXCM209RF | Voltage Detector |
| ZXCM210JF | Analog IC |
| ZXCT1010E | Analog IC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ZXCM209LFTA | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:IC-SM-SUPERVISORY CIRCUIT |
| ZXCM209MF | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage Detector |
| ZXCM209RF | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage Detector |
| ZXCM209SF | 制造商:ZETEX 制造商全稱:ZETEX 功能描述:IC-SM-2.93V RESET MONITOR |
| ZXCM209T | 制造商:ZETEX 制造商全稱:ZETEX 功能描述:Supply Monitor - obsolete |
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