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參數資料
| 型號： | MAX704TMJA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 3.0V/3.3V Microprocessor Supervisory Circuits |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, CDIP8 |
| 封裝： | 0.300 INCH, CERDIP-8 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 100K |
| 代理商： | MAX704TMJA |
_______________General Desc ription
These microprocessor (μP) supervisory circuits reduce
the complexity and number of components required for
power-supply monitoring and battery-control functions
in μP systems. They significantly improve system relia-
bility and accuracy compared to separate ICs or
discrete components.
These devices are designed for use in systems powered
by 3.0V or 3.3V supplies. See the selector guide in the
back of this data sheet for similar devices designed for
5V systems. The suffixes denote different reset threshold
voltages: 3.075V (T), 2.925V (S), and 2.625V (R) (see
Reset Threshold section in the Detailed Description. All
these parts are available in 8-pin DIP and SO packages.
Functions offered in this series are as follows:
________________________Applic ations
Battery-Powered Computers and Controllers
Embedded Controllers
Intelligent Instruments
Automotive Systems
Critical μP Power Monitoring
Portable Equipment
____________________________Features
o
–R————and RESET Outputs
o
Manual Reset Input
o
Precision Supply-Voltage Monitor
o
200ms Reset Time Delay
o
Watchdog Timer (1.6sec timeout)
o
Battery-Backup Power Switching—
Battery Can Exceed V
CC
in Normal Operation
o
40μA V
CC
Supply Current
o
1μA Battery Supply Current
o
Voltage Monitor for Power-Fail or
Low-Battery Warning
o
Guaranteed –R———— Assertion to V
CC
= 1V
o
8-Pin DIP and SO Packages
______________Ordering Information
Ordering Information continued on last page.
* Contact factory for dice specifications.
**These parts offer a choice of reset threshold voltage. Select
the letter corresponding to the desired nominal reset threshold
voltage (T = 3.075V, S = 2.925V, R = 2.625V) and insert it into
the blank to complete the part number.
_________Typic al Operating Circ uits
M
3.0V /3.3V Mic roproc essor S upervisory Circ uits
________________________________________________________________ Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.
1
MAX690T/S/R
MAX802T/S/R
MAX804T/S/R
MAX805T/S/R
0.1
μ
F
V
OUT
RESET
(RESET)
PFO
WDI
R1
VBATT
V
CC
GND
GND
GND
V
CC
CMOS RAM
0.1
μ
F
0.1
μ
F
3.6V
LITHIUM
BATTERY
μ
P
V
CC
RESET
NMI
I/OLINE
UNREGULATED
DC
REGULATED +3.3V OR +3.0V
R2
BUS
( ) ARE FOR MAX804T/S/R, MAX805T/S/R
SeelastpageforMAX704T/S/R, MAX806T/S/R.
PFI
__________________Pin Configuration
1
2
3
4
8
7
6
5
DIP/SO
TOP VIEW
PFO
VBATT
RESET (RESET)
WDI
<
MR
>
V
OUT
V
CC
GND
PFI
MAX690T/S/R
MAX704T/S/R
MAX802T/S/R
MAX804T/S/R
MAX805T/S/R
MAX8
ARE FOR MAX804T/S/R, MAX805T/S/R
< >
ARE FOR MAX704T/S/R, MAX806T/S/R
19-0243; Rev 1; 9/94
PART**
MAX690
_CPA
MAX690_CSA
MAX690_C/D
MAX690_EPA
MAX690_ESA
MAX690_MJ A
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
Dice*
8 Plastic DIP
8 SO
8 Plastic DIP
PIN-PACKAGE
Part
MAX690
MAX704
MAX802
MAX804
MAX805
MAX806
8 CERDIP
8 SO
Atv-Wtho nu
MnaTrsodAcrc
Ipt
Sic
PCmaao
±4%
±4%
±2%
±2%
±4%
±2%
PwRstWno
±75mV
±75mV
±2%
±2%
±75mV
±2%
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