参数资料
型号: MIC1815-10U TR
厂商: Micrel Inc
文件页数: 5/6页
文件大小: 0K
描述: IC SUPERVSR RESET 2.88V SOT23-3
标准包装: 3,000
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 100 ms
电压 - 阀值: 2.88V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: TO-236-3,SC-59,SOT-23-3
供应商设备封装: SOT-23-3
包装: 带卷 (TR)
其它名称: MIC1815-10UTR
MIC1815
Applications Information
Microprocessor Reset
The /RESET pin is asserted whenever V CC falls below the
reset threshold voltage. The reset pin remains asserted for a
period of t RST after V CC has risen above the reset threshold
voltage. The reset function ensures the microprocessor is
properly reset and powers up into a known condition after
a power failure. /RESET will remain valid with V CC as low
as 1V.
Micrel
/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 /RESET-to-ground is
recommended. The resistor should be large enough not to
load the /RESET output and small enough to pull-down any
stray leakage currents. See Figure below.
VCC
V CC Transients
The MIC1815 is 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 will not cause an unwanted reset.
VCC
MIC1815
RESET
VCC
μP
RESET
100K
/RESET Valid to V CC = 0V
July 2005
5
MIC1815
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