- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄97863 > DS1689SN (MAXIM INTEGRATED PRODUCTS INC) 1 TIMER(S), REAL TIME CLOCK, PDSO28 PDF資料下載
參數(shù)資料
| 型號： | DS1689SN |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | Timer or RTC |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO28 |
| 封裝： | 0.330 INCH, SOIC-28 |
| 文件頁數(shù)： | 14/36頁 |
| 文件大小： | 594K |
| 代理商： | DS1689SN |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁當(dāng)前第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁
DS1689/DS1693
21 of 36
EXTENDED CONTROL REGISTERS
Two extended control registers are provided to supply controls and status information for the extended
features offered by the DS1689/DS1693. These are designated as extended control registers A and B and
are located in register bank 1, locations 04AH and 04BH, respectively. The functions of the bits within
these registers are described as follows.
Extended Control Register 4A
MSB
LSB
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
VRT2
INCR
*
PAB
RF
WF
KF
*Reserved bits. These bits are reserved for future use by Dallas Semiconductor. They can be read and written, but have no effect on
operation.
Bit 7: VRT2. This status bit gives the condition of the auxiliary battery. It is set to a logic 1 condition
when the external lithium battery is connected to the VBAUX. If this bit is read as logic 0, the external
battery should be replaced.
Bit 6: INCR (Increment in Progress Status). This bit is set to 1 when an increment to the time/date
registers is in progress and the alarm checks are being made. INCR is set to 1 at 122
s before the update
cycle starts and is cleared to 0 at the end of each update cycle.
Bit 4: PAB (Power Active Bar Control). When this bit is 0, the
PWR pin is in the active-low state. The
user can write this bit to logic 1 or logic 0. If either [WF and WIE = 1] or [KF and KSE = 1], the PAB bit
is cleared to 0.
Bit 2: RF (RAM Clear Flag). This bit is set to logic 1 when a high-to-low transition occurs on the
RCLR
input if RCE = 1. The RF bit is cleared by writing it to logic 0. This bit can also be written to logic 1 to
force an interrupt condition.
Bit 1: WF (Wake-Up Alarm Flag). This bit is set to 1 when a wake-up alarm condition occurs or when
the user writes it to 1. WF is cleared by writing it to 0.
Bit 0: KF (Kickstart Flag). This bit is set to 1 when a kickstart condition occurs or when the user writes
it to 1. This bit is cleared by writing it to logic 0.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1689S | 1 TIMER(S), REAL TIME CLOCK, PDSO28 |
| DS1693 | 1 TIMER(S), REAL TIME CLOCK, PDMA28 |
| DS1689 | 1 TIMER(S), REAL TIME CLOCK, PDIP28 |
| DS1720S+T&R | DIGITAL TEMP SENSOR-SERIAL, 9BIT(s), RECTANGULAR, SURFACE MOUNT |
| DS1720S+ | DIGITAL TEMP SENSOR-SERIAL, 9BIT(s), RECTANGULAR, SURFACE MOUNT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1689SN/R | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:3V/5V Serialized Real-Time Clocks with NV RAM Control |
| DS1689SN/T | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:3V/5V Serialized Real-Time Clocks with NV RAM Control |
| DS1689SN/T&R | 制造商:Maxim Integrated Products 功能描述:IC RTC SER NV RAM CTRL IN 28SOIC |
| DS1689SN/T&R | 功能描述:實時時鐘 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 |
| DS1689SN+ | 功能描述:實時時鐘 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。