參數資料
型號: S-35390A-J8T1G
元件分類: 時鐘/數據恢復及定時提取
英文描述: 1 TIMER(S), REAL TIME CLOCK, PDSO8
封裝: LEAD FREE, SOP-8
文件頁數: 9/56頁
文件大?。?/td> 529K
代理商: S-35390A-J8T1G
2-WIRE REAL-TIME CLOCK
Rev.3.0_00
S-35390A
Seiko Instruments Inc.
17
Power-on Detection Circuit and Register Status
The power-on detection circuit operates by power-on the S-35390A, 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 :
“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, as seen in Figure 20, the period to power-up the S-35390A 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-35390A once again because the internal data may be in the indefinite status.
Do not transmit data immediately after power-on at least 0.5 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-35390A.
Figure 20
How to Raise the Power Supply Voltage
相關PDF資料
PDF描述
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
S-35399A03-J8T2G 1 TIMER(S), REAL TIME CLOCK, PDSO8
S-35L32AEFSG REAL TIME CLOCK, PDSO10
相關代理商/技術參數
參數描述
S-35390A-J8T1U 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) 供應商器件封裝:8-SOP-J 標準包裝:1
S-35390A-T8T1 功能描述:實時時鐘 2-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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
S-35390A-T8T1G 功能描述:實時時鐘 2-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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
S-35390A-T8T1U 功能描述:IC RTC CLK/CALENDAR I2C 8TSSOP 制造商:ablic u.s.a. inc. 系列:- 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-TSSOP(0.173",4.40mm 寬) 供應商器件封裝:8-TSSOP 標準包裝:1
S-35391A-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-SMD,扁平引線 供應商器件封裝:SNT-8A 標準包裝:1