參數(shù)資料
型號: MIC1555BM5 TR
廠商: Micrel Inc
文件頁數(shù): 4/17頁
文件大?。?/td> 0K
描述: IC OSC MONO TIMING 5MHZ SOT23-5
標(biāo)準(zhǔn)包裝: 3,000
系列: IttyBitty®
類型: 555 型,計時器/振蕩器(單路)
頻率: 5MHz
電源電壓: 2.7 V ~ 18 V
電流 - 電源: 350µA
工作溫度: -40°C ~ 85°C
封裝/外殼: SC-74A,SOT-753
包裝: 帶卷 (TR)
供應(yīng)商設(shè)備封裝: SOT-23-5
安裝類型: 表面貼裝
其它名稱: MIC1555BM5TR
MIC1555BM5TR-ND
Micrel, Inc.
MIC1555/1557
March 11, 2014
12
Revision 6.0
Figure 2. Oscillator Diagram
The MIC1555 or MIC1557 can be used to construct an
oscillator.
The frequency of an astable oscillator is:
RC
k
1
f
1
=
where:
f = frequency (Hz)
k1 = Constant (see Typical Characteristics)
R = Resistance ()
C = Capacitance (F)
To use the MIC1555 as an oscillator, connect TRG to
THR.
Figure 3. MIC1555 Oscillator Configuration
The MIC1555YMU and MIC1557 feature a CS input. With
a logic-low signal, CS places the part into a <1A
shutdown state. If unused, the CS input must be pulled
up.
Figure 4. MIC1557 Oscillator Configuration
Falling-Edge Triggered Monostable Circuit
The MIC1555 may be triggered by an AC-coupled falling-
edge, as shown in Figure 5. The RC time constant of the
input capacitor and pull-up resistor should be less than
the output pulse time, to prevent multiple output pulses. A
diode across the timing resistor provides a fast reset at
the end of the positive timing pulse.
Figure 5. Falling Edge Trigger Configuration
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