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參數資料
| 型號： | DS12R885S-33+T&R |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 10/23頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC RTC W/RAM 128 BYTE 24-SOIC |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 1,000 |
| 類型： | 時鐘/日歷 |
| 特點： | 警報器，閏年，NVSRAM，方波輸出，涓流充電器 |
| 存儲容量： | 114B |
| 時間格式： | HH:MM:SS（12/24 小時） |
| 數據格式： | YY-MM-DD-dd |
| 接口： | 并聯 |
| 電源電壓： | 2.97 V ~ 3.63 V |
| 電壓 - 電源，電池： | 2 V ~ 3.05 V |
| 工作溫度： | -40°C ~ 85°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： | 帶卷 (TR) |
DS12R885/DS12CR887/DS12R887
18
Maxim Integrated
Bit 7: Interrupt Request Flag (IRQF). This bit is set to
1 when any of the following are true:
PF = PIE = 1
AF = AIE = 1
UF = UIE = 1
Any time the IRQF bit is 1, the IRQ pin is driven low.
This bit can be cleared by reading Register C or with a
RESET.
Bit 6: Periodic Interrupt Flag (PF). This bit is read-
only and is set to 1 when an edge is detected on the
selected tap of the divider chain. The RS3 through RS0
bits establish the periodic rate. PF is set to 1 indepen-
dent of the state of the PIE bit. When both PF and PIE
are 1s, the IRQ signal is active and sets the IRQF bit.
This bit can be cleared by reading Register C or with a
RESET.
Bit 5: Alarm Interrupt Flag (AF). A 1 in the AF bit indi-
cates 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. This bit can be cleared by
reading Register C or with a RESET.
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 a 1, which
asserts the IRQ pin. This bit can be cleared by reading
Register C or with a RESET.
Bits 3 to 0: Unused. These bits are unused in Register
C. These bits always read 0 and cannot be written.
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
IRQF
PF
AF
UF
0000
Control Register C
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
VRT
0000000
Control Register D
Bit 7: Valid RAM and Time (VRT). This bit indicates
the condition of the battery connected to the VBACKUP
pin. This bit is not writeable and should always be 1
when read. If a 0 is ever present, an exhausted internal
lithium energy source is indicated and both the con-
tents of the RTC data and RAM data are questionable.
This bit is unaffected by RESET.
Bits 6 to 0: Unused. The remaining bits of Register D
are not usable. They cannot be written and they always
read 0.
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相關代理商/技術參數 |
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| DS12R885S-5 | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK MULTIPLEXED 114BYTE 24SOIC W - Bulk |
| DS12R885S-5/T&R | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK MULTIPLEXED 114BYTE 24SOIC W - Tape and Reel |
| DS12R885S-5+ | 功能描述:實時時鐘 RTC w/Constant V Trickle Charger 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 |
| DS12R885S-5+T&R | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK MULTIPLEXED 114BYTE - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC RTC W/RAM 128 BYTE 24-SOIC |
| DS12R885S-5+T&R | 功能描述:實時時鐘 RTC w/Constant V Trickle Charger 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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