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| 型号： | MAX6864UK16D2S+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/17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 40 ms |
| 电压 - 阀值： | 1.575V |
| 工作温度： | -40°C ~ 85°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) |
19-3139; Rev 4; 12/05
Nanopower μP Supervisory Circuits with
Manual Reset and Watchdog Timer
General Description
The MAX6854/MAX6855/MAX6856/MAX6858/MAX6860–
MAX6869 ultra-low-current (170nA, typ) microprocessor
(μP) supervisory circuits combine voltage monitoring,
watchdog timer, and manual reset input functions in a 5-
pin SOT23 package. These devices assert a reset signal
whenever the monitored voltage drops below the factory-
trimmed reset threshold voltage, manual reset is assert-
ed, or the watchdog timer expires. The reset output
remains asserted for a minimum timeout period after V CC
rises above the reset threshold and manual reset is
deasserted. Factory-trimmed reset threshold voltages
are offered from +1.575V to +4.625V in approximately
100mV increments (see the Threshold Suffix Guide ).
Each device is offered with six minimum reset timeout
options, ranging from 10ms to 1200ms.
The MAX6854/MAX6855/MAX6856/MAX6858/MAX6860–
MAX6869 are offered in a variety of configurations (see
the Selector Guide ). The MAX6854/MAX6855/MAX6856/
MAX6861–MAX6869 provide a manual reset input, MR .
The MAX6864–MAX6869 offer a watchdog timer that
monitors activity at the WDI input to prevent code execu-
tion errors. The MAX6864–MAX6869 offer watchdog
timeout options of 3.3s or 209s (typ). The MAX6861/
MAX6862/MAX6863 feature a pin-selectable reset delay
period of 10ms or 150ms (min). Push-pull active-low,
push-pull active-high, and open-drain active-low reset
outputs are available.
Features
? Ultra-Low 170nA (typ) Supply Current
? Reset Thresholds from +1.575V to +4.625V in
Approximately 100mV Increments
? Six Minimum Reset Timeout Period Options from
10ms to 1200ms
? Manual Reset Option
? Watchdog Timer Option
? Pin-Selectable 10ms/150ms (min) Reset Timeout
Period (MAX6861/MAX6862/MAX6863)
? Immune to Short V CC Transients
? Guaranteed Reset Valid to V CC = +1.1V
? Three Reset Output Options:
Push-Pull RESET
Push-Pull RESET
Open-Drain RESET
? No External Components
? Small 5-Pin SOT23 Package
? Pin Compatible to the TPS3836/TPS3837/TPS3838
(MAX6861/MAX6862/MAX6863)
Ordering Information
Applications
Portable/Battery-Powered Equipment
PART ?
MAX6854 UK_ _D_-T
TEMP RANGE
-40°C to +85°C
PIN-PACKAGE
5 SOT23-5
PDAs/Cell Phones
MP3 Players/Pagers
Glucose Monitors/Patient Monitors
Typical Operating Circuit
MAX6855 UK_ _D_-T -40°C to +85°C 5 SOT23-5
? Insert reset threshold suffix (see Table 2, Threshold Suffix
Guide) after UK. Insert the number corresponding to the
desired reset timeout period (see Table 4, Reset Timeout
Period) after D.
Note: Sample stock is generally held on standard versions
only (see Table 5, Standard Versions Table). Standard versions
have an order increment of 2500 pieces. Nonstandard versions
V CC
V CC
RESET
0.1 μ F
RESET
V CC
have an order increment of 10,000 pieces. Contact factory for
availability of nonstandard versions.
Devices are available in both leaded and lead-free packaging.
Specify lead-free by replacing “-T” with “+T” when ordering.
MAX6864
MAX6867
μ P
Pin Configurations and Selector Guide appear at end of
data sheet.
MANUAL
RESET
MR
GND
WDI
I/O
GND
Ordering Information continued 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.
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相关代理商/技术参数 |
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|---|---|
| MAX6864UK16D3L+ | 制造商:Maxim from Components Direct 功能描述:MAXIM MAX6864UK16D3L+ PROCESSOR SUPERVISORS - Boxed Product (Development Kits) 制造商:Maxim 功能描述:Maxim MAX6864UK16D3L+ Processor Supervisors |
| MAX6864UK16D3L+T | 功能描述:监控电路 Single nPower 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 |
| MAX6864UK16D3L-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 |
| MAX6864UK16D3S | 制造商:Maxim Integrated Products 功能描述:NANOPOWER MICROPROCESSOR SUPERVISOR - Cut Tape Product |
| MAX6864UK16D3S+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 1.575V 7UA 5PIN SOT-23 - Rail/Tube |
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