參數(shù)資料
型號(hào)： S-35190A-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： 1 TIMER(S), REAL TIME CLOCK, PDSO8
封裝： LEAD FREE, SOP-8
文件頁(yè)數(shù)： 31/55頁(yè)
文件大?。?/td> 488K
代理商： S-35190A-J8T1G
3-WIRE REAL-TIME CLOCK
Rev.3.0_00
S-35190A
Seiko Instruments Inc.
37
2. Measurement of oscillation frequency
When the S-35190A is turned on, the internal power-on detection circuit operates and a signal of 1 Hz is output from the
INT pin to select the crystal oscillator and optimize the Cg value. Turn the power on and measure the signal with a
frequency counter following the circuit configuration shown in Figure 46.
If 1 Hz signal is not output, the power-on detection circuit does not operate normally. Turn off the power and then turn it
on again. For how to apply power, refer to “ Power-on Detection circuit and Register Status”.
Remark If the error range is
±1 ppm in relation to 1 Hz, the time is shifted by approximately 2.6 seconds per month
(calculated using the following expression).
10
–6 (1 ppm) × 60 seconds × 60 minutes × 24 hours × 30 days = 2.592 seconds
INT
CS
SIO
SCK
S-35190A
VDD
XOUT
XIN
VSS
Cg
10 k
Ω
10 k
Ω
10 k
Ω
Open
Frequency
counter
Figure 46 Configuration of Oscillation Frequency Measurement Circuit
Caution
1. Use a high-accuracy frequency counter of 7 digits or more.
2. Measure the oscillation frequency under the usage conditions.
3. Since the 1 Hz signal continues to be output, initialization must be executed during normal
operation.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
S-35190A-J8T1U 功能描述:IC RTC CLK/CALENDAR SER 8SOP 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:3 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）:8μA ~ 14μA @ 3V ~ 5V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商器件封裝:8-SOP-J 標(biāo)準(zhǔn)包裝:1
S-35190A-T8T1 功能描述:實(shí)時(shí)時(shí)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(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-35190A-T8T1G 功能描述:實(shí)時(shí)時(shí)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(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-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
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