- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄378742 > UPD65944 CMOS-9HD Family.EA-9HD Family Block Library Ver.6.0 | Block Library[12/2000] PDF資料下載
參數(shù)資料
| 型號： | UPD65944 |
| 英文描述： | CMOS-9HD Family.EA-9HD Family Block Library Ver.6.0 | Block Library[12/2000] |
| 中文描述： | CMOS的9HD Family.EA - 9HD家庭座圖書館Ver.6.0 |座圖書館[12/2000] |
| 文件頁數(shù)： | 27/64頁 |
| 文件大?。?/td> | 399K |
| 代理商： | UPD65944 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁當(dāng)前第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁
27
μ
PD64A, 65
Data Sheet U14380EJ2V0DS00
7. POC CIRCUIT
The POC circuit monitors the power supply voltage and applies an internal reset in the microcontroller at the
time of battery replacement.
Cautions 1. There are cases in which the POC circuit cannot detect a low power supply voltage of less
than 1 ms. Therefore, if the power supply voltage has become low for a period of less than
1 ms, the POC circuit may malfunction because it does not generate an internal reset signal.
2. Clock oscillation is stopped by the resonator due to low power supply voltage before the
POC circuit generates the internal reset signal. In this case, malfunction may result, for
example when the power supply voltage is recovered after the oscillation is stopped. This
type of phenomenon takes place because the POC circuit does not generate an internal reset
signal (because the power supply voltage recovers before the low power supply voltage is
detected) even though the clock has stopped. If, by any chance, a malfunction has taken
place, remove the battery for a short time and put it back. In most cases, normal operation
will be resumed.
3. In order to prevent malfunction, be sure to input a low level to more than one of pins K
I0
to
K
I3
when POC is released due to supply voltage startup).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UPD65945 | CMOS Gate Array.Embedded Array Ver.2.0 for Package | Design Manual[05/2003] |
| UPD65946 | CMOS-9HD Family.EA-9HD Family Block Library Ver.6.0 | Block Library[12/2000] |
| UPD65948 | CMOS Gate Array.Embedded Array Ver.2.0 for Package | Design Manual[05/2003] |
| UPD65964 | CMOS-9HD Family.EA-9HD Family Block Library Ver.6.0 | Block Library[12/2000] |
| UPD65966 | CMOS Gate Array.Embedded Array Ver.2.0 for Package | Design Manual[05/2003] |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UPD65944GJ-039-JEU-A | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD65945 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CMOS Gate Array.Embedded Array Ver.2.0 for Package | Design Manual[05/2003] |
| UPD65946 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CMOS-9HD Family.EA-9HD Family Block Library Ver.6.0 | Block Library[12/2000] |
| UPD65948 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CMOS Gate Array.Embedded Array Ver.2.0 for Package | Design Manual[05/2003] |
| UPD65948S1-068 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SYSTEM CONTROLLER |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。