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參數(shù)資料
| 型號： | S-35190A-T8T1 |
| 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： | TSSOP-8 |
| 文件頁數(shù)： | 26/47頁 |
| 文件大?。?/td> | 527K |
| 代理商： | S-35190A-T8T1 |
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3-WIRE REAL-TIME CLOCK
S-35190A
Rev.1.2_00
Seiko Instruments Inc.
32
2. Measurement of oscillation frequency
When the S-35190A is turned on, the internal power-on detector 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 37. A signal of 1 Hz
may not be output depending on the state in which power is applied, so set the selected frequency steady
interrupt using status register_2 and then set 1 Hz signal output using INT1 register_1 to generate a
normal output. For further details, refer to “Interrupts”.
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
S-35190A
Frequency
counter
VDD
XIN
XOUT
CS
INT
VSS
SIO
SCK
Cg
10
k
10
k
Open
10
k
Figure 37 Configuration of Oscillation Frequency Measurement Circuit
Caution 1. Use a high-accuracy frequency counter (1 ppm order).
2. Since the 1 Hz signal continues to be output, initialization must be executed during
normal operation.
3. Refer to the frequency slow/fast range characteristics for Cg.
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| 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(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 |
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