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參數(shù)資料
| 型號： | S-35399A03-J8T2G |
| 元件分類： | 時鐘/數(shù)據(jù)恢復(fù)及定時提取 |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO8 |
| 封裝： | LEAD FREE, SOP-8 |
| 文件頁數(shù)： | 11/53頁 |
| 文件大小： | 472K |
| 代理商： | S-35399A03-J8T2G |
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2-WIRE REAL-TIME CLOCK
Rev.2.0_00
S-35399A03
Seiko Instruments Inc.
19
Power-on Detection Circuit and Register Status
The power-on detection circuit operates by power-on the S-35399A03, as a result each register is cleared; each register is
set as follows.
Real-time data register :
00 (Y), 01 (M), 01 (D), 0 (day of the week), 00 (H), 00 (M), 00 (S)
Status register 1 :
“01h”
Status register 2 :
“80h”
INT1 register :
“80h”
INT2 register :
“00h”
Clock correction register :
“00h”
Free register 1 :
“00h”
Free register 2 :
“00h”
Free register 3 :
“00h”
Up counter :
“00 00 00h”
Alarm expansion register 1 :
“00h”
Alarm expansion register 2 :
“00h”
“1” is set in the POC flag (B0 in the status register 1) to indicate that power has been applied. To correct the oscillation
frequency, the status register 2 goes in the mode the output of user-set frequency, so that 1 Hz clock pulse is output from
the
1
INT
pin. When “1” is set in the POC flag, be sure to initialize. The POC flag is set to “0” due to initialization so that the
output of user-set frequency mode is cleared. (Refer to “ Register Status After Initialization”.)
For the regular operation of power-on detection circuit, the period to power-up the S-35399A03 is that the voltage reaches
1.3 V within 10 ms after setting the IC’s power supply voltage at 0 V. When the power-on detection circuit is not working
normally is; the POC flag (B0 in the status register) is not in “1”, or 1 Hz is not output from the
1
INT pin. In this case,
power-on the S-35399A03 once again because the internal data may be in the indefinite status.
Do not transmit data immediately after power-on at least one sec because the power-on detection circuit is operating.
Within 10 ms
1.3 V
0 V
*1
*1.
0 V indicates that there are no potential differences between the VDD
pin and VSS pin of the S-35399A03.
Figure 20 How to raise the power supply voltage
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S-35399A03-J8T2U | 功能描述:IC RTC CLK/CALENDAR I2C 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:時鐘/日歷 特性:警報器，閏年 存儲容量:- 時間格式:HH：MM：SS（12/24 小時） 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 - 計時（最大）:14μA ~ 30μA @ 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 |
| S354 | 制造商:Johnson Electric / Parlex Corporation 功能描述: 制造商:Johnson Electric / Saia-Burgess 功能描述:Non Catalogue / S354 制造商:SAIA - BURGESS ELECTRONICS INC. 功能描述:Non Catalogue / S354 |
| S3540 | 制造商:Microsemi Corporation 功能描述:STD RECOVERY RECTFR 400V 70A 2PIN DO-203AB - Bulk 制造商:MERKLE-KORFF INDUSTRIES 功能描述:OLD COLMAN P/N: 8004002 |
| S354-006 | 功能描述:CABLE SCSI II C50M/M 6' RoHS:是 類別:電纜組件 >> D形，Centronics 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 配置:VHDCI 68 位置公型至公型 長度:10.00'（3.05m） 纜線類型:圓形 - 黑色 屏蔽:屏蔽 樣式:SCSI Ultra 2 |
| S3-5409-LAB (W/O COVER) | 制造商:Molex 功能描述:CONNECTOR - Bulk |
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