參數(shù)資料
型號： DS17885S-3+
廠商： Maxim Integrated Products
文件頁數(shù)： 9/31頁
文件大?。?/td> 0K
描述： IC RTC 3V 8K NV RAM 24-SOIC
產(chǎn)品培訓模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝： 31
類型： 時鐘/日歷
特點： 警報器，夏令時，閏年，NVSRAM，方波輸出
存儲容量： 8KB
時間格式： HH:MM:SS（12/24 小時）
數(shù)據(jù)格式： YY-MM-DD-dd
接口： 并聯(lián)
電源電壓： 2.7 V ~ 3.7 V
電壓 - 電源，電池： 2.5 V ~ 3.7 V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 24-SOIC（0.295"，7.50mm 寬）
供應商設備封裝： 24-SOIC W
包裝： 管件
產(chǎn)品目錄頁面： 1435 (CN2011-ZH PDF)
Bit 7: Interrupt Request Flag (IRQF). This bit is set to
1 when any of the following are true:
PF = PIE = 1
WF = WIE = 1
AF = AIE = 1
KF = KSE = 1
UF = UIE = 1
RF = RIE = 1
Any time the IRQF bit is 1, the IRQ pin is driven low.
Flag bits PF, AF, and UF are cleared after reading
Register C.
Bit 6: Periodic Interrupt Flag (PF). This is a read-only
bit that is set to 1 when an edge is detected on the
selected tap of the divider chain. The RS3–RS0 bits
establish the periodic rate. PF is set to 1 independent
of the state of the PIE bit. When both PF and PIE are 1s,
the IRQ signal is active and sets the IRQF bit. Reading
Register C clears this bit.
Bit 5: Alarm Interrupt Flag (AF). A 1 in this bit indicates
that the current time has matched the alarm time. If the
AIE bit is also 1, the IRQ pin goes low and a 1 appears in
the IRQF bit. Reading Register C clears this bit.
Bit 4: Update-Ended Interrupt Flag (UF). This bit is
set after each update cycle. When the UIE bit is set to
1, the 1 in UF causes the IRQF bit to be 1, which
asserts IRQ. Reading Register C clears this bit.
Bits 3 to 0: Unused. These unused bits always read 0
and cannot be written.
DS17285/DS17287/DS17485/DS17487/DS17885/DS17887
Real-Time Clocks
____________________________________________________________________
17
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
IRQF
PF
AF
UF
0000
Register C (0Ch)
MSB
LSB
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
VRT
00
00000
Register D (0Dh)
MSB
LSB
Register D (0Dh)
Bit 7: Valid RAM and Time (VRT). This bit indicates
the condition of the battery connected to the VBAT and
VBAUX pin. If either supply is above the internal voltage
threshold, VRTTRIP, the bit will be high. This bit is not
writeable and should always be a 1 when read. If a 0 is
ever present, an exhausted internal lithium energy
source is indicated and both the contents of the RTC
data and RAM data are questionable.
Bits 6 to 0: Unused. These bits cannot be written and,
when read, always read 0.
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相關代理商/技術參數(shù)
參數(shù)描述
DS17885S-3+ 功能描述:實時時鐘 3V/5V RTC 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
DS17885S-5 功能描述:實時時鐘 3V/5V RTC 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
DS17885S-5/T&R+ 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK MULTIPLEXED 8KBYTE 24SOIC - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC RTC 5V 8K NV RAM 24-SOIC
DS17885S-5/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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
DS17885S-5/T&R+ 功能描述:實時時鐘 3V/5V RTC 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
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