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参数资料
| 型号： | MIC809TYC3 |
| 厂商： | Micrel Inc |
| 文件页数： | 5/6页 |
| 文件大小： | 0K |
| 描述： | IC RESET GEN 3.08V VTH SC70 |
| 标准包装： | 1 |
| 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： | 3.08V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-70，SOT-323 |
| 供应商设备封装： | SC-70-3 |
| 包装： | 管件 |
MIC809/810
Applications Information
Microprocessor Reset
The /RESET (or RESET) pin is asserted whenever V CC falls
below the reset threshold voltage. The /RESET pin remains
asserted for a period of 140ms after V CC has risen above
the reset threshold voltage. The reset function ensures the
microprocessor is properly reset and powers up in a known
condition after a power failure. /RESET will remain valid with
V CC as low as 1.4V (1V for SC-70 package).
V CC Transients
The MIC809/810 are relatively immune to negative-going V CC
glitches below the reset threshold. Typically, a negative-going
transient 125mV below the reset threshold with a duration of
20μs or less (SC70 package) will not cause a reset.
Micrel
Interfacing to Bidirectional Reset Pins
The MIC809/810 can interface with μPs with bidirectional
reset pins by connecting a 4.7kΩ resistor in series with the
MIC809/810 output and the μP reset pin.
/RESET Valid at Low Voltage
A resistor can be added from the /RESET pin to ground to
ensure the /RESET output remains low with V CC down to
0V. A 100kΩ resistor connected from the /RESET to ground
is recommended. The resistor should be small enough to
pull-down any stray leakage currents and large enough not
to load the reset output. See Figure below.
VCC
VCC VCC
MIC809
RESET
μP
RESET
100K
Reset Valid to V CC = 0V
April 2005
5
M0450-041405
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC809TYC3 TR | 功能描述:监控电路 3-Pin Microprocessor Reset Circuit with Push-Pull Active-Low Output, 3.08V Threshold, 140ms reset pulse in SC70-3 - Lead Free 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 |
| MIC810 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Microprocessor Reset Circuits |
| MIC810_U | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Microprocessor Reset Circuits |
| MIC810JBC3 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Microprocessor Reset Circuits |
| MIC810JU | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Microprocessor Reset Circuits |
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