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參數(shù)資料
| 型號： | DS1647-120 |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | Timer or RTC |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, DMA28 |
| 封裝： | MODULE, DIP-28 |
| 文件頁數(shù)： | 6/11頁 |
| 文件大?。?/td> | 370K |
| 代理商： | DS1647-120 |
DS1647/DS1647P
4 of 11
CLOCK ACCURACY (DIP MODULE)
The DS1647 is guaranteed to keep time accuracy to within
±1 minute per month at 25°C. The clock is
calibrated at the factory by Dallas Semiconductor using special calibration nonvolatile tuning elements.
The DS1647does not require additional calibration and temperature deviations will have a negligible
effect in most applications. For this reason, methods of field clock calibration are not available and not
necessary.
CLOCK ACCURACY (POWERCAP MODULE)
The DS1647P and DS9034PCX are each individually tested for accuracy. Once mounted together, the
module is guaranteed to keep time accuracy to within
±1.53 minutes per month (35 ppm) at 25°C.
DS1647 REGISTER MAP - BANK1 Table 2
DATA
ADDRESS
B7
B6
B5
B4
B3
B2
B1
B0
FUNCTION
7FFFF
-
YEAR
00-99
7FFFE
X
-
MONTH
01-12
7FFFD
X
-
DATE
01-31
7FFFC
X
FT
X
-
DAY
01-07
7FFFB
X
-
HOUR
00-23
7FFFA
X
-
MINUTES
00-59
7FFF9
OSC
-
SECONDS
00-59
7FFF8
W
R
X
CONTROL
A
OSC
= STOP BIT
R = READ BIT
FT = FREQUENCY TEST
W
= WRITE BIT
X = UNUSED
NOTE:
All indicated “X” bits are not dedicated to any particular function and can be used as normal RAM bits.
相關PDF資料 |
PDF描述 |
|---|---|
| DS1647P-120 | 0 TIMER(S), REAL TIME CLOCK, DMA34 |
| DS1647P | 0 TIMER(S), REAL TIME CLOCK, DMA34 |
| DS1647 | 0 TIMER(S), REAL TIME CLOCK, DMA32 |
| DS1670 | 0 TIMER(S), REAL TIME CLOCK, PDSO20 |
| DS1672-2 | 0 TIMER(S), REAL TIME CLOCK, PDIP8 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS1647-120+ | 功能描述:實時時鐘 NV Timekeeping RAM 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 |
| DS1647-15 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:NVRAM (Battery Based) |
| DS1647D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Bus Transceiver |
| DS1647L-12 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:NVRAM (Battery Based) |
| DS1647L-15 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:NVRAM (Battery Based) |
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