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參數(shù)資料
| 型號(hào)： | S-35380A-J8T1G |
| 元件分類： | 時(shí)鐘/數(shù)據(jù)恢復(fù)及定時(shí)提取 |
| 英文描述： | REAL TIME CLOCK, PDSO8 |
| 封裝： | SOP-8 |
| 文件頁數(shù)： | 8/47頁 |
| 文件大?。?/td> | 504K |
| 代理商： | S-35380A-J8T1G |
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2-WIRE REAL-TIME CLOCK
S-35380A
Rev.2.0_00
Seiko Instruments Inc.
16
Power Supply Voltage Detector
S-35380A 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. 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
VDET
1 s
Stop
(0)
(1)
(0)
Status register_1
reading
Sampling pulse
Figure 16 Timing of Power Supply Voltage Detector
DISCONTINUED
PRODUCT
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S-35390A-I8T1-G | 1 TIMER(S), REAL TIME CLOCK, PDSO8 |
| S-35390A-J8T1G | 1 TIMER(S), REAL TIME CLOCK, PDSO8 |
| S-35390A-T8T1 | REAL TIME CLOCK, PDSO8 |
| S-35392A-I8T1U | 1 TIMER(S), REAL TIME CLOCK, PDSO8 |
| S-35399A03-J8T2U | 1 TIMER(S), REAL TIME CLOCK, PDSO8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S35390A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:RTC芯片 |
| S-35390A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:RTC芯片 |
| S-35390A-I8T1G | 功能描述:實(shí)時(shí)時(shí)鐘 2-wire 實(shí)時(shí)時(shí)鐘 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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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-35390A-I8T1U | 功能描述:IC RTC CLK/CALENDAR I2C SNT-8A 制造商:ablic u.s.a. inc. 系列:- 包裝:剪切帶（CT） 零件狀態(tài):在售 類型:時(shí)鐘/日歷 特性:警報(bào)器，閏年 存儲(chǔ)容量:- 時(shí)間格式:HH：MM：SS（12/24 小時(shí)） 日期格式:YY-MM-DD-dd 接口:I2C，2 線串口 電壓 - 電源:1.3 V ~ 5.5 V 電壓 - 電源，電池:- 電流 - 計(jì)時(shí)（最大）:0.93μA ~ 1.1μA @ 3V ~ 5V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SMD，扁平引線 供應(yīng)商器件封裝:SNT-8A 標(biāo)準(zhǔn)包裝:1 |
| S-35390A-J8T1 | 制造商:Seiko Instruments Inc (SII) 功能描述: |
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