參數(shù)資料
型號(hào): MAX811
廠商: ON SEMICONDUCTOR
英文描述: 4-Pin μP Reset Monitor(3腳μP監(jiān)控電路復(fù)位監(jiān)視器(低電平復(fù)位))
中文描述: 4引腳微處理器電壓監(jiān)視器,帶有手動(dòng)復(fù)位輸入
文件頁數(shù): 1/8頁
文件大?。?/td> 52K
代理商: MAX811
Semiconductor Components Industries, LLC, 2001
January, 2001 – Rev. 3
1
Publication Order Number:
MAX811/D
MAX811, MAX812
4-Pin
μ
P Reset Monitors
The MAX811 and MAX812 are cost–effective system supervisor
circuits designed to monitor V
CC
in digital systems and provide a reset
signal to the host processor when necessary. A manual reset input is
provided to override the reset monitor, and is suitable for use as a
push–button reset. No external components are required.
The reset output is driven active within 20
μ
sec (4
μ
sec for
F version) of V
CC
falling through the reset voltage threshold. RESET
is maintained active for a minimum of 140 msec after V
CC
rises above
the reset threshold. The MAX812 has an active–high RESET output
while the MAX811 has an active–low RESET output. The output of
the MAX811 is guaranteed valid down to V
CC
= 1 V. Both devices are
available in a 4–Pin SOT–143 package.
The MAX811/12 are optimized to reject fast transient glitches on
the V
CC
line. Low supply current of 7
μ
A (V
CC
= 3.3 V) makes these
devices suitable for battery powered applications.
Features
Precision V
CC
Monitor for 1.8 V, 2.7 V, 3.0 V, 3.3 V, 5.0 V
Nominal Supplies
Manual Reset Input
140 msec Guaranteed Minimum RESET, RESET Output Duration
RESET Output Guaranteed to V
CC
= 1.0 V (MAX811)
Low 7
μ
A Supply Current
V
CC
Transient Immunity
Small SOT–143–4 Package
No External Components
Typical Applications
Computers
Embedded Systems
Battery Powered Equipment
Critical
μ
P Power Supply Monitoring
Typical Operating Circuit
GND
MAX811
PUSH–
BUTTON
VCC
RESET
MR
VCC
RESET
INPUT
(ACTIVE LOW)
GND
PROCESSOR
VCC
http://onsemi.com
PIN CONNECTIONS
1
GND
4 V
CC
2
MAX811 (RESET)
MAX812 (RESET)
3 MR
SOT–143
CASE 318A
1
2
3
4
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
ORDERING INFORMATION
See general marking information in the device marking
section on page 6 of this data sheet.
DEVICE MARKING INFORMATION
相關(guān)PDF資料
PDF描述
MAX812 4-Pin μP Reset Monitor(3腳μP監(jiān)控電路復(fù)位監(jiān)視器(高電平復(fù)位))
MAX812_EUS-T 4-Pin レP Voltage Monitors with Manual Reset Input
MAX812 4-Pin μp Voltage Monitors with Manual Reset Input(4管腳μP電壓監(jiān)控器,低有效復(fù)位輸出)
MAX814 Accuracy, Low-Power, +3V and +5V μp Supervisory Circuits(高精度,±1%,低功耗,3V和5VμP監(jiān)控電路)
MAX818 Microprocessor Supervisory Circuits(5VμP監(jiān)控電路,斷電警告)
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參數(shù)描述
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