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參數(shù)資料
| 型號(hào)： | MIC70__M |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | レP Supervisory Circuits |
| 中文描述： | レP監(jiān)控電路 |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大?。?/td> | 185K |
| 代理商： | MIC70__M |
1
The MIC706P/R/S/T and MIC708R/S/T are inexpensive
microprocessor supervisory circuits that monitor power
supplies in 3.0 and 3.3 Volt microprocessor based
systems. The circuit functions include a watchdog timer,
microprocessor reset, power failure warning and a
debounced manual reset input.
The MIC706 offers a watchdog timer function, while the
MIC708 has no watchdog timer but has an active high
reset output in addition to the active low reset output.
The R, S, and T versions are similar in all respects
except for supply voltage reset threshold levels. The
threshold levels are 2.63, 2.93, and 3.08V respectively.
When the supply voltage drops below the reset
threshold level, RESET (and RESET for the MIC708) is
asserted.
The MIC706P is identical to the MIC706R, except that
the Reset output is asserted high.
1
2
3
4
V
CC
GND
PFI
8
7
6
5
WDO
RESET
(RESET for MIC706P)
WDI
PFO
MIC706
MR
1
2
3
4
V
CC
GND
PFI
8
7
6
5
RESET
RESET
NC
PFO
MIC708
MR
Top View
N Package - 8 Lead Plastic DIP Package
M Package - 8 Lead Plastic SOIC Package
Part
MIC70_ _N
MIC70_ _M
Package
8-Lead PDIP
8-Lead SOIC
Temp. Range
-40°C to +85°C
-40°C to +85°C
·
Laptop Computers
·
Intelligent Instruments
·
Critical Microprocessor Power Monitoring
·
Printers
·
Computers
·
Controllers
·
30
μ
A Maximum Supply Current
·
Debounced Manual Reset Input is
TTL/CMOS Compatible
·
Reset Pulse Width, 200ms
·
Watchdog Timer, 1.6s (MIC706)
·
Precision Supply Voltage Monitor
·
Early Power Fail Warning
or Low Battery
Detect
VCC
RESET
μP
RESET
VCC
MIC706
+3.0 or +3.3V (Regulated)
MR
WDI
WDO
I/O Line
NMI
PFO
Interrupt
PFI
DC Voltage
(Unregulated)
Manual
Reset
Typical Operating Circuit
Features
Description
Pin Configuration
Ordering Information
Typical Applications
MIC706P/R/S/T, MIC708R/S/T μP Supervisory Circuits
MIC706P/R/S/T, MIC708R/S/T
μP Supervisory Circuits
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MIC70__N | 40000 SYSTEM GATE 3.3 VOLT LOGIC CELL AR - NOT RECOMMENDED for NEW DESIGN |
| MIC708T | μP Supervisory Circuit(μP監(jiān)控電路（帶電源故障警告和手動(dòng)復(fù)位）) |
| MIC706R | μP Supervisory Circuit(μP監(jiān)控電路（帶看門(mén)狗定時(shí)器，微處理器復(fù)位，電源故障警告和手動(dòng)復(fù)位功能）) |
| MIC706T | μP Supervisory Circuit(μP監(jiān)控電路（帶看門(mén)狗定時(shí)器，微處理器復(fù)位，電源故障警告和手動(dòng)復(fù)位功能）) |
| MIC708R | μP Supervisory Circuit(μP監(jiān)控電路（帶電源故障警告和手動(dòng)復(fù)位）) |
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