参数资料
型号: MIC810TYC3 TR
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: 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: 高有效
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: 带卷 (TR)
其它名称: MIC810TYC3TR
MIC810TYC3TR-ND
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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