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| 型号： | MAX6823MUK+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/9页 |
| 文件大小： | 0K |
| 描述： | IC MPU SUPERVISOR SOT23-5 |
| 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，图腾柱 |
| 复位： | 低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 4.38V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-23-5 |
| 包装： | 带卷 (TR) |
19-1868; Rev 2; 12/05
Low-Voltage SOT23 μP Supervisors with
Manual Reset and Watchdog Timer
General Description
The MAX6821–MAX6825 are low-voltage microprocessor
(μP) supervisory circuits that combine voltage monitor-
ing, watchdog timer, and manual reset input functions in
a 5-pin SOT23 package. Microprocessor supervisory cir-
cuits significantly improve system reliability and accura-
cy compared to separate ICs or discrete components.
These devices assert a reset signal whenever the moni-
tored voltage drops below its preset threshold, keeping it
asserted for a minimum timeout period after V CC rises
above the threshold. In addition, a watchdog timer moni-
tors against code execution errors. A debounced manual
reset is also available. The MAX6821–MAX6825 monitor
voltages from +1.8V to +5.0V. These outputs are guaran-
teed to be in the correct state for V CC down to +1.0V.
Nine preprogrammed reset threshold voltages are
available (see the Threshold Suffix Guide ). The
MAX6821, MAX6822, and MAX6823 all have a manual
reset input and a watchdog timer. The MAX6821 has
push-pull RESET, the MAX6822 has open-drain RESET ,
Features
o Monitors +1.8V, +2.5V, +3.0V, +3.3V, +5.0V
Supplies
o 140ms (min) Reset Timeout Delay
o 1.6s Watchdog Timeout Period
(MAX6821/MAX6822/MAX6823/MAX6824)
o Manual Reset Input
(MAX6821/MAX6822/MAX6823/MAX6825)
o Three Reset Output Options
Push-Pull RESET
Push-Pull RESET
Open-Drain RESET
o Guaranteed Reset Valid to V CC = +1.0V
o Immune to Short Negative V CC Transients
o No External Components
o Small 5-Pin SOT23 Packages
Ordering Information
and the MAX6823 has push-pull RESET . The MAX6824
has a watchdog timer and both push-pull RESET and
push-pull RESET. The MAX6825 has a manual reset
input and both push-pull RESET and push-pull RESET.
The Selector Guide explains the functions offered in
this series of parts.
________________________Applications
PART*
MAX6821 _UK-T
MAX6822 _UK-T
MAX6823 _UK-T
MAX6824 _UK-T
MAX6825 _UK-T
TEMP RANGE
-40 ° C to +125 ° C
-40 ° C to +125 ° C
-40 ° C to +125 ° C
-40 ° C to +125 ° C
-40 ° C to +125 ° C
PIN-PACKAGE
5 SOT23-5
5 SOT23-5
5 SOT23-5
5 SOT23-5
5 SOT23-5
Set-Top Boxes
Computers and
Controllers
Automotive Systems
Critical μP Monitoring
Portable/Battery-
* Insert the desired suffix letter (from the table below) into the blank
to complete the part number
Devices are available in both leaded and lead-free packaging.
Specify lead-free by replacing “-T” with “+T” when ordering.
Embedded Controllers
Intelligent Instruments
Powered Equipment
Threshold Suffix Guide
TOP VIEW
Pin Configurations
SUFFIX
L
M
T
RESET
THRESHOLD (V)
4.63
4.38
3.08
RESET(RESET) 1
GND 2
MR 3
MAX6821
MAX6822
MAX6823
5
4
V CC
WDI
S
R
Z
Y
W
2.93
2.63
2.32
2.19
1.67
V
1.58
(RESET) MAX6821 ONLY
SOT23-5
Note: Bold indicates standard versions. Samples are typically
available for standard versions only. All parts require a 2.5k
Pin Configurations continued at end of data sheet.
Typical Operating Circuit appears at end of data sheet.
minimum order increment. Contact factory for availability.
Selector Guide appears at end of data sheet.
________________________________________________________________ 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 |
|---|---|
| MAX6823RUK | 制造商:Maxim Integrated Products 功能描述:LOW-VOLTAGE SOT23 MICROPROCESSOR SU - Cut Tape Product |
| MAX6823RUK+ | 制造商:Maxim Integrated Products 功能描述:MAXIM MAX6823RUK+, SUPERVISORS - Tape and Reel 制造商:Maxim Integrated Products 功能描述:Maxim MAX6823RUK+, Microprocessor Supervisory Circuit 2.63V Reset Threshold 1.8V/2.5V/3V/3.3V/5V 5-pin SOT23 |
| MAX6823RUK+T | 功能描述:监控电路 Single 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 |
| MAX6823RUK-T | 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 |
| MAX6823SUK | 制造商:Maxim Integrated Products 功能描述:LOW-VOLTAGE SOT23 MICROPROCESSOR SU - Rail/Tube |
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