參數(shù)資料
型號： MAX808N
廠商： Maxim Integrated Products, Inc.
英文描述： 8-Pin &#181.P Supervisory Circuits with &#177.1.5&#37. Reset Accuracy
中文描述： 8引腳微處理器監(jiān)控電路，提供±1.5%的復位門限精度
文件頁數(shù)： 1/12頁
文件大?。?/td> 91K
代理商： MAX808N
_______________General Desc ription
The MAX801/MAX808 microprocessor (μP) supervisory
circuits monitor and control the activities of +5V μPs by
providing backup-battery switchover, low-line indica-
tion, and μP reset. Additional features include a watch-
dog for the MAX801 and CMOS RAM write protection
for the MAX808.
The MAX801/MAX808 offer a choice of reset-threshold
voltage (denoted by suffix letter): 4.675V (L), 4.575V
(N), and 4.425V (M). These devices are available in
8-pin DIP and SO packages.
________________________Applic ations
Computers
Controllers
Intelligent Instruments
Critical μP Power Monitoring
Portable/Battery-Powered Equipment
Embedded Systems
____________________________Features
o
Precision Voltage Monitoring, ±1.5% Reset
Accuracy
o
200ms Power-OK/Reset Time Delay
o
RESET Output (MAX808)
RESET and RESET Outputs (MAX801)
o
Watchdog Timer (MAX801)
o
On-Board Gating of Chip-Enable Signals (MAX808):
Memory Write-Cycle Completion
3ns CE Gate Propagation Delay
o
1μA Standby Current
o
Power Switching:
250mA in V
CC
Mode
20mA in Battery-Backup Mode
o
MaxCap/SuperCap Compatible
o
RESET Guaranteed Valid to V
CC
= 1V
o
Low-Line Threshold 52mV Above Reset
Threshold
M
8-Pin μP S upervisory Circ uits
with ±1.5% Reset Ac c urac y
________________________________________________________________ Maxim Integrated Products
1
0.1
μ
F
0.1
μ
F
0.1
μ
F
μ
P
POWER
POWER FOR
CMOS RAM
NMI
BATT
V
CC
OUT
+5V
GND
RESET
FROM I/OSYSTEM OR
ADDRESS DECODER
TOCMOS RAM
CE IN
CE OUT
LOWLINE
RESET
MAX808
μP SYSTEM
__________Typic al Operating Circ uit
19-1086; Rev 0; 6/96
PART*
MAX801
_CPA
MAX801_CSA
MAX801_EPA
MAX801_ESA
MAX801_MJ A
MAX808
_CPA
MAX808_CSA
MAX808_EPA
MAX808_ESA
MAX808_MJ A
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
8 Plastic DIP
8 SO
8 Plastic DIP
8 SO
8 CERDIP**
8 Plastic DIP
8 SO
8 Plastic DIP
8 SO
8 CERDIP**
______________Ordering Information
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
MaxCap is a trademark of The Carborundum Corp.
SuperCap is a trademark of Baknor Industries.
Pin Configurations appear at end of data sheet.
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-55°C to +125°C
-55°C to +125°C
-40°C to +85°C
*These parts offer a choice of reset threshold voltage. From the
table below, select the suffix corresponding to the desired
threshold and insert it into the blank to complete the part number.
**Contact factory for availability and processing to MIL-STD-883.
RESET THRESHOLD (V)
L
4.60
4.675
N
4.50
4.75
M
4.35
4.575
4.65
4.425
4.50
MIN
MAX
SUFFIX
TYP
相關PDF資料
PDF描述
MAX801NCPA Interface IC
MAX801NCSA Interface IC
MAX801NEPA Interface IC
MAX801NESA Interface IC
MAX801NMJA Interface IC
相關代理商/技術參數(shù)
參數(shù)描述
MAX808NCPA 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)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(jiān)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
MAX808NCPA+ 功能描述:監(jiān)控電路 8-Pin uPower Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)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(jiān)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
MAX808NCSA 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)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(jiān)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
MAX808NCSA+ 功能描述:監(jiān)控電路 8-Pin uPower Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)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(jiān)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
MAX808NCSA+T 功能描述:監(jiān)控電路 8-Pin uPower Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)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(jiān)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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