- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98067 > S-35190A-T8T1 REAL TIME CLOCK, PDSO8 PDF資料下載
參數(shù)資料
| 型號： | S-35190A-T8T1 |
| 元件分類： | 時鐘/數(shù)據(jù)恢復(fù)及定時提取 |
| 英文描述： | REAL TIME CLOCK, PDSO8 |
| 封裝： | TSSOP-8 |
| 文件頁數(shù)： | 9/47頁 |
| 文件大?。?/td> | 527K |
| 代理商： | S-35190A-T8T1 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁當(dāng)前第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
3-WIRE REAL-TIME CLOCK
Rev.1.2_00
S-35190A
Seiko Instruments Inc.
17
Power Supply Voltage Detector
S-35190A has an internal power supply voltage detector, which monitors drops in the power supply voltage
by reading the BLD flag. This circuit samples the voltage for only 15.6 ms per second. If the power supply
voltage drops below the detection voltage (VDET), the BLD latch circuit latches the “H” level, bit 6 (BLD flag)
of internal status register_1 is set to “1”, and sampling stops. Detection voltage and release voltage have
approximate 0.15 V (Typ.) of hysteresis width respectively (Refer to “Characteristics”). Once “1” is
detected in the BLD flag, no detection operation is performed unless initialization is performed or the BLD
flag is read by the status register_1 access command, and “1” is held in the BLD flag. Sampling resumes
only when the subsequent communication action is initialization or BLD flag read.
In addition, if this BLD flag is “1” after the power supply voltage is recovered, it must be initialized.
Caution In case the power supply voltage falls and returns after the latch circuit latches “H”, the
BLD flag can be read as “1” by a status register_1 accsess command first. After that the
sampling is resumed and the read-out of the next BLD flag is performed, the BLD flag is
reset and read as “0”. Refer to the timing chart below.
VDD
Latch circuit
output
BLD flag
1 s
Stop
(0)
(1)
(0)
Sampling pulse
Hysteresis width
0.15 V approximately
Status register_1
reading
Detection
voltage
Release
voltage
15.6 ms
Figure 18 Timing of Power Supply Voltage Detector
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S-35192A-I8T1U | 1 TIMER(S), REAL TIME CLOCK, PDSO8 |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S-35190A-T8T1G | 功能描述:實(shí)時時鐘 3-Wire 1.3-5.5V RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| S-35192A | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:3-WIRE REAL-TIME CLOCK |
| S-35192A-I8T1G | 制造商:Seiko Instruments Inc (SII) 功能描述:3WIRE REAL TIME CLCK |
| 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。