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| 型号： | MAX814TCSA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR MPU LP 8SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 推挽式，推挽式 |
| 复位： | 高有效/低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 3.03V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
19-0412; Rev 1; 12/05
±1% Accuracy, Low-Power, +3V and +5V
μP Supervisory Circuits
_______________General Description
The MAX814/MAX815/MAX816 are high-accuracy
microprocessor (μP) supervisory circuits that provide
power-on reset, watchdog, and power-fail functions.
They eliminate manual trimming and improve reliability
in critical applications needing high-accuracy reset
thresholds. The RESET output is guaranteed to be in
the correct state for V CC down to 1V. The reset com-
parator is designed to ignore fast transients on V CC .
Reset thresholds are available for operation with a vari-
ety of 3V and 5V supply voltages.
A 75μA maximum supply current makes the MAX814/
MAX815/MAX816 ideal for use in portable equipment. All
three devices are available in 8-pin DIP and SO pack-
ages. See the Selector Table for a review of features.
_____________________Selector Table
____________________________Features
? ±1% Worst-Case Reset Threshold Accuracy
? 4.8V, 4.7V, 4.55V, 3.03V, or Adjustable Reset
Thresholds
? ±1% Low-Line Threshold Accuracy (MAX814)
60mV Above Reset Threshold
? 200ms Reset Time Delay
? Active-Low RESET Output
Active-High RESET Output (MAX814/MAX816)
? 75μA Max Supply Current
? Guaranteed RESET Valid to V CC = 1V
? Manual Reset Input
? ±2% Power-Fail Comparator
? Independent Watchdog with 1.56sec Timeout
(MAX815)
FEATURE
RESET Output
RESET Output
Manual Reset
V CC Reset Voltage
MAX814
?
?
?
K, L, N, T
MAX815
?
?
K, L, N, T
MAX816
?
?
?
Adjustable
? Power-Supply Glitch Immunity
? 8-Pin SO and DIP Packages
______________Ordering Information
Power-Fail Monitor
Low-Line Detector
?
?
?
?
PART*
MAX814 _CPA
TEMP RANGE
0°C to +70°C
PIN-PACKAGE
8 PDIP
Watchdog Circuit
?
* The MAX814/MAX815 offer a choice of reset threshold voltages.
From the Reset Trip Threshold table, select the suffix corre-
sponding to the desired threshold and insert it into the blank to
________________________Applications
Medical Equipment
Controllers
Intelligent Instruments
Critical μP Power Monitoring
Portable/Battery-Powered Equipment
Set-Top Boxes
complete the part number.
Devices are available in both leaded and lead-free packaging.
Specify lead free by adding the + symbol at the end of the part
number when ordering.
Ordering Information continued at end of data sheet.
Reset Trip Thresholds table appears at end of data sheet.
__________________________________________________________Pin Configurations
TOP VIEW
MR 1
8
RESET
MR 1
8
WDO
MR 1
8
RESET
V CC 2
MAX814
7
RESET
V CC 2
MAX815
7
RESET
V CC 2
MAX816
7
RESET
GND 3
PFI 4
6
5
LOW LINE
PFO
GND 3
PFI 4
6
5
WDI
PFO
GND 3
PFI 4
6
5
RESET IN
PFO
DIP/SO
DIP/SO
DIP/SO
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX814TE | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:【1% Accuracy, Low-Power, +3V and +5V レP Supervisory Circuits |
| MAX814TEPA | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX814TEPA+ | 功能描述:监控电路 3V & 5V uPower Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX814TESA | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX814TESA+ | 功能描述:监控电路 3V & 5V uPower Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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