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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)： | 18/47頁 |
| 文件大小： | 527K |
| 代理商： | S-35190A-T8T1 |
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3-WIRE REAL-TIME CLOCK
Rev.1.2_00
S-35190A
Seiko Instruments Inc.
25
(2) If current oscillation frequency < target frequency (in case the clock is slow)
Register value
= Integral value
(Current oscillation frequency)
(Minimum resolution)
(Current oscillation frequency
actual measurement value)
(Target oscillation frequency)
×
+ 1
Caution The figure range which can be corrected is that the calculated value is from 0 to 62.
The example of calculated value 2
Current oscillation frequency actual measurement value
= 0.999920 [Hz],
Target oscillation frequency
= 1.000000 [Hz],
B7
= 0 (minimum resolution = 3.052 ppm),
Register value
= Integral value
(0.999920)
× (3.052 × 106)
(1.000000)
(0.999920)
+1
= Integral value (26.21) +1 = 26 +1 = 27
Thus, set up (B7,B6,B5,B4,B3,B2,B1,B0) = (0,0,0,1,1,0,1,1) for the clock register.
The example of calculated value 3
Current oscillation frequency actual measurement value = 0.999920 [Hz],
Target oscillation frequency = 1.000000 [Hz],
B7
= 1 (minimum resolution = 1.017 ppm),
Register value
= Integral value
(0.999920)
× (1.017 × 106)
(1.000000)
(0.999920)
+1
= Integral value (78.66) + 1
Thus, this calculated value exceeds the correctable range 0 to 62,
B7
= “1” (minimum resolution = 1.017 ppm) indicates the correction is impossible.
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| S-3531AECA-TB-01 | REAL TIME CLOCK, UUC8 |
| S-35380A-T8T1G | REAL TIME CLOCK, PDSO8 |
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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 |
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