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參數資料
| 型號： | MIC812_U |
| 廠商： | Micrel Semiconductor,Inc. |
| 元件分類： | 復位半導體 |
| 英文描述： | Microprocessor Reset Circuits |
| 中文描述： | 微處理器復位電路 |
| 文件頁數： | 1/8頁 |
| 文件大小： | 159K |
| 代理商： | MIC812_U |
1
The MIC811/MIC812 are inexpensive microprocessor
supervisory circuits that monitor power supplies in
microprocessor based systems.
The function of these devices is to assert a reset if
either the power supply drops below a designated reset
threshold level or MR is forced low. Several different
reset threshold levels are available to accomodate 3V,
3.3V or 5V powered systems.
The MIC811 has an active low RESET output, while the
MIC812 offers an active high RESET output. The reset
output is guaranteed to remain asserted for a minimum
of 140ms after VCChas risen above the designated
reset threshold level. The MIC811/MIC812 come in a 4-
pin SOT-143 package.
1
2
4
V
CC
GND
MIC812
RESET
3
MR
1
2
4
V
CC
GND
MIC811
RESET
3
MR
Top View
Part
MIC811_U
MIC812_U
Package
4-Lead SOT-143
4-Lead SOT-143
Temp. Range
-40°C to +85°C
-40°C to +85°C
Place the device suffix of desired reset threshold voltage from table above in
blank to complete the part number.
·
Portable Equipment
·
Intelligent Instruments
·
Critical Microprocessor Power Monitoring
·
Printers/Computers
·
Controllers
·
RESET Remains Valid with VCC as Low
as 1.4V
·
Precision Voltage Monitor for 3V, 3.3V
or 5V Power Supplies
·
Available in 4-Pin SOT-143 Package
·
<15
μ
A Supply Current
·
140ms Minimum Reset Pulse Width
·
Manual Reset Input
VCC
RESET
μP
RESET
VCC
MIC811
VCC
MR
Typical Operating Circuit
Features
Description
Pin Configuration
Ordering Information
Typical Applications
Reset Threshold
Voltage (V)
4.63
4.38
4.00
3.08
2.93
2.63
Device
Suffix
L
M
J
T
S
R
MIC811/MIC812 Microprocessor Reset Circuits
MIC811/MIC812
Microprocessor Reset Circuits
相關PDF資料 |
PDF描述 |
|---|---|
| MIC812 | Microprocessor Reset Circuit(微處理器復位電路（監視基于微處理器系統的電源）) |
| MIC820 | Teeny Ultra Low Power Op Amp |
| MIC820BC5 | Teeny Ultra Low Power Op Amp |
| MIC833 | 30000 SYSTEM GATE 3.3 VOLT LOGIC CELL AR - NOT RECOMMENDED for NEW DESIGN |
| MIC833BM5 | 30000 SYSTEM GATE 3.3 VOLT LOGIC CELL AR - NOT RECOMMENDED for NEW DESIGN |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MIC820 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Teeny Ultra Low Power Op Amp |
| MIC820BC5 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Teeny Ultra Low Power Op Amp |
| MIC826 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Voltage Supervisor with Watchdog Timer,Manual Reset, and Dual Outputs In 1.6mm x 1.6mm TDFN |
| MIC826LYMT T5 | 制造商:Micrel Inc 功能描述:SUPERVISOR 制造商:Micrel Inc 功能描述:MIC826 Series Dual Output 5.5 V Voltage Supervisor Manual Reset/Watchdog -TDFN-6 制造商:Micrel Inc 功能描述:SUPERVISOR, Threshold Voltage:4.625V, No. of Supervisors / Monitors:1, Supply Voltage Min:1V, Supply Voltage Max:5.5V, Reset Type:Active-High, Active-Low, Digital IC Case Style:TDFN, No. of Pins:6, Supply Current:4.8A, Delay |
| MIC826LYMT TR | 功能描述:監控電路 Voltage Supervisor Watchdog/Dual Output RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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