- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98067 > S-35192A-I8T1U 1 TIMER(S), REAL TIME CLOCK, PDSO8 PDF資料下載
參數(shù)資料
| 型號： | S-35192A-I8T1U |
| 元件分類： | 時鐘/數(shù)據(jù)恢復(fù)及定時提取 |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO8 |
| 封裝： | HALOGEN FREE AND LEAD FREE, SNT-8 |
| 文件頁數(shù)： | 11/41頁 |
| 文件大?。?/td> | 366K |
| 代理商： | S-35192A-I8T1U |
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頁當前第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
3-WIRE REAL-TIME CLOCK
Rev.2.0_00
S-35192A
Seiko Instruments Inc.
19
Low Power Supply Voltage Detection Circuit
The S-35192A has a low power supply voltage detection circuit, so that users can monitor drops in the power supply
voltage by reading the BLD flag (B1 in the status register 1). There is a hysteresis width of approx. 0.15 V (Typ.) between
detection voltage and release voltage (refer to “
Characteristics (Typical Data)”). The low power supply voltage
detection circuit does the sampling operation only once in one sec for 15.6 ms.
If the power supply voltage decreases to the level of detection voltage (VDET) or less, “1” is set to the BLD flag so that
sampling operation stops. Once “1” is detected in the BLD flag, no sampling operation is performed even if the power
supply voltage increases to the level of release voltage or more, and “1” is held in the BLD flag. After initialization, or once
the BLD flag is read, the BLD flag is automatically set to “0” to restart the sampling operation.
If the BLD flag is “1” even after the power supply voltage is recovered, the internal circuit may be in the indefinite status. In
this case, be sure to initialize the circuit.
VDD
BLD flag
Stop
Sampling pulse
Hysteresis width
0.15 V approximately
BLD flag reading
Detection
voltage
1 s
Release
voltage
15.6 ms
Figure 21
Timing of Low Power Supply Voltage Detection Circuit
Circuits Power-on and Low Power Supply Voltage Detection
Figure 22 shows the changes of the POC flag and BLD flag due to VDD fluctuation.
VDD
BLD flag
Status register 1
reading
POC flag
VSS
Low power supply
voltage detection
voltage
Low power supply
voltage detection
voltage
Figure 22
POC Flag and BLD Flag
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S-3530AECA | REAL TIME CLOCK, UUC8 |
| S-3531AECA-TB-01 | REAL TIME CLOCK, UUC8 |
| S-35380A-T8T1G | REAL TIME CLOCK, PDSO8 |
| S-35380A-J8T1G | REAL TIME CLOCK, PDSO8 |
| S-35390A-I8T1-G | 1 TIMER(S), REAL TIME CLOCK, PDSO8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S-35199A01 | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:3-WIRE REAL-TIME CLOCK |
| S-35199A01-HRT1 | 制造商:Seiko Instruments Inc (SII) 功能描述:3WIRE REAL TIME CLCK |
| S3-5-1AE | 制造商:OENINDIA 制造商全稱:OEN India Limited 功能描述:MINI AUTOMOTIVE RELAY |
| S3-5-1ANIL | 制造商:OENINDIA 制造商全稱:OEN India Limited 功能描述:MINI AUTOMOTIVE RELAY |
| S3-5-1CE | 制造商:OENINDIA 制造商全稱:OEN India Limited 功能描述:MINI AUTOMOTIVE RELAY |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。