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參數資料
| 型號： | APR3001-35B |
| 廠商： | Anpec Electronics Corporation |
| 元件分類： | 復位半導體 |
| 英文描述： | MicroPower Microprocessor Reset Circuit |
| 中文描述： | 微功耗微處理器復位電路 |
| 文件頁數： | 9/15頁 |
| 文件大?。?/td> | 153K |
| 代理商： | APR3001-35B |
Copyright
ANPEC Electronics Corp.
Rev. A.3 - Feb., 2004
APR3001/ 2/ 3
www.anpec.com.tw
9
Application I nformation
V
CC
Transient Rejec tion
The APR3001/2/3 have the function to reject the tran-
sient glitches from the power line. The Maximum Tran-
sient Duration vs. Reset Threshold Overdrive shows
at Typical Characteristics.The transient voltage with
the duration under the curve will not generate a reset
signal, e.g. a transient of 100mV below the reset
threshold voltage have the duration more than 35us, it
will generate a reset signal. Connect a 0.1uF bypass
capacitor to the V
CC
pin can improve the transient
immunity.
Reset Output
The APR3001/2/3 have 3 output stage versions:
APR3001 is an active low push-pull output, when the
V
CC
drops below the reset threshold, the RESET out-
put generates a low signal. APR3002 is an active high
push-pull output, when the V
CC
drops below the reset
threshold, the RESET output generates a high signal
(see Timing Chart). APR3003 is an active low open
drain output, the RESET output must be connected a
pull-up resistor to a supply voltage that is lower than
6V, it suits to use in multiple voltage systems (see
Figure 2). The APR3001 RESET output is valid until
the V
CC
=1.2V, below 1.2V the IC is shutdown, and
the output becomes a floating state. If it is a trouble, a
resistor should be connected from reset output to
ground to keep the reset output low (see Figure 1).
For The APR3002, a pull-up resistor to V
CC
is required
to keep the valid reset output for V
CC
below 1.2V.
RESET
V
CC
GND
V
CC
100K
Figure 1. Ensuring RESET Valid to V
CC
= 0 V
V
CC
APR3003
RESET
GND
+3.3V
+5.0V
V
CC
GND
RESET
INPUT
5V
System
100k
Figure 2. APR3003 Open Drain Output with Multiple
Supplies
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| APR3001-36A | MicroPower Microprocessor Reset Circuit |
| APR3001-36B | MicroPower Microprocessor Reset Circuit |
| APR3001-37A | MicroPower Microprocessor Reset Circuit |
| APR3001-37B | MicroPower Microprocessor Reset Circuit |
| APR3001-38A | MicroPower Microprocessor Reset Circuit |
相關代理商/技術參數 |
參數描述 |
|---|---|
| APR3001-36A | 制造商:ANPEC 制造商全稱:Anpec Electronics Coropration 功能描述:MicroPower Microprocessor Reset Circuit |
| APR3001-36B | 制造商:ANPEC 制造商全稱:Anpec Electronics Coropration 功能描述:MicroPower Microprocessor Reset Circuit |
| APR3001-37A | 制造商:ANPEC 制造商全稱:Anpec Electronics Coropration 功能描述:MicroPower Microprocessor Reset Circuit |
| APR3001-37B | 制造商:ANPEC 制造商全稱:Anpec Electronics Coropration 功能描述:MicroPower Microprocessor Reset Circuit |
| APR3001-38A | 制造商:ANPEC 制造商全稱:Anpec Electronics Coropration 功能描述:MicroPower Microprocessor Reset Circuit |
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