參數(shù)資料
型號(hào)： MAX691A
廠商： Maxim Integrated Products, Inc.
英文描述： Microprocessor Supervisory Circuits(帶看門狗復(fù)位、片選和支持備用電池的復(fù)位器)
中文描述： 微處理器監(jiān)控電路
文件頁(yè)數(shù)： 1/16頁(yè)
文件大?。?/td> 164K
代理商： MAX691A
_______________General Desc ription
The MAX691A/MAX693A/MAX800L/MAX800M micro-
processor (μP) supervisory circuits are pin-compatible
upgrades to the MAX691, MAX693, and MAX695. They
improve performance with 30μA supply current, 200ms
typ reset active delay on power-up, and 6ns chip-
enable propagation delay. Features include write pro-
tection of CMOS RAM or EEPROM, separate watchdog
put that is valid with V
down to 1V. The MAX691A/
MAX800L have a 4.65V typical reset-threshold voltage,
and the MAX693A/MAX800M’s reset threshold is 4.4V
typical. The MAX800L/MAX800M guarantee power-fail
accuracies to ±2%.
________________________Applic ations
Computers
Controllers
Intelligent Instruments
Automotive Systems
Critical μP Power Monitoring
____________________________Features
o
200ms Power-OK/Reset Timeout Period
o
1μA Standby Current, 30μA Operating Current
o
On-Board Gating of Chip-Enable Signals,
10ns Max Delay
o
MaxCap
or SuperCap
Compatible
o
Guaranteed –R————Assertion to V
CC
= 1V
o
Voltage Monitor for Power-Fail or Low-Battery
Warning
o
Power-Fail Accuracy Guaranteed to ±2%
(MAX800L/M)
o
Available in 16-Pin Narrow SO and Plastic
DIP Packages
______________Ordering Information
Ordering Information continued on last page.
*Dice are specified at T
A
= +25°C.
M
Mic roproc essor S upervisory Circ uits
________________________________________________________________ Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.
1
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
RESET
RESET
WDO
CE IN
GND
V
CC
V
OUT
VBATT
TOP VIEW
MAX691A
MAX693A
MAX800L
MAX800M
CE OUT
WDI
PFO
PFI
OSC SEL
OSC IN
LOW LINE
BATT ON
DIP/SO
__________________Pin Configuration
MAX691A
MAX693A
MAX800L
MAX800M
V
OUT
V
CC
BATT ON
CE OUT
CE IN
WDI
PFO
RESET
VBATT
PFI
GND
OSC IN
OSC SEL
1
9
4
7
8
ADDRESS
DECODE
AUDIBLE
ALARM
5V
REGULATOR
8V
0.1
μ
F
CMOS RAM
2
12
11
10
15
13
5
3
A0-A15
I/O
μ
P
NMI
RESET
LOW LINE WDO
6
SYSTEM STATUS INDICATORS
NO
CONNECTION
0.47F*
1N4148
*MaxCap
14
__________Typic al Operating Circ uit
19-0094; Rev 6; 7/95
PART
MAX691A
CPE
MAX691ACSE
MAX691ACWE
MAX691AC/D
MAX691AEPE
MAX691AESE
MAX691AEWE
0°C to +70°C
0°C to +70°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
16 Plastic DIP
16 Narrow SO
16 Wide SO
Dice*
16 Plastic SO
16 Narrow SO
16 Wide SO
MAX691AEJ E
MAX691AMJ E
-40°C to +85°C
-55°C to +125°C
16 CERDIP
16 CERDIP
-40°C to +85°C
-40°C to +85°C
SuperCap is a registered trademark of Baknor Industries. MaxCap is a registered trademark of The Carborundum Corp.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX691AC/D 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX691ACPE 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX691ACPE+ 功能描述:監(jiān)控電路 MPU Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX691ACSE 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX691ACSE+ 功能描述:監(jiān)控電路 MPU Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
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