- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄9319 > DS12885N (Maxim Integrated Products)IC RTC W/RAM 128 BYTE 24-DIP PDF資料下載
參數(shù)資料
| 型號： | DS12885N |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 9/22頁 |
| 文件大小： | 0K |
| 描述： | IC RTC W/RAM 128 BYTE 24-DIP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 16 |
| 類型： | 時(shí)鐘/日歷 |
| 特點(diǎn)： | 警報(bào)器，夏令時(shí)，閏年，NVSRAM，方波輸出 |
| 存儲容量： | 114B |
| 時(shí)間格式： | HH:MM:SS（12/24 小時(shí)） |
| 數(shù)據(jù)格式： | YY-MM-DD-dd |
| 接口： | 并聯(lián) |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 電壓 - 電源，電池： | 2.5 V ~ 4 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 24-DIP（0.600"，15.24mm） |
| 供應(yīng)商設(shè)備封裝： | 24-PDIP |
| 包裝： | 管件 |
DS12885/DS12887/DS12887A/DS12C887/DS12C887A
Real-Time Clocks
____________________________________________________________________
17
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 5: 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
0
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 VBAT pin.
This bit is not writeable and should always be 1 when
read. If a 0 is ever present, an exhausted internal lithi-
um energy source is indicated and both the contents 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.
MSB
LSB
MSB
LSB
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MCP4241-503E/P | IC DGTL POT DL 50K 2CH 14-DIP |
| DS12885SN | IC RTC W/RAM 128 BYTE IND 24SOIC |
| DS14285SN | IC RTC W/NV RAM CNTRL IND 24SOIC |
| MCP4242-104E/UN | IC DGTL POT DL 100K 2CH 10-MSOP |
| DS1501YS | IC RTC WDOG Y2KC 5V 28-SOIC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS12885N+ | 功能描述:實(shí)時(shí)時(shí)鐘 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(shí)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 |
| DS12885Q | 功能描述:實(shí)時(shí)時(shí)鐘 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(shí)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 |
| DS12885Q/T&R | 制造商:Rochester Electronics LLC 功能描述: 制造商:DSC 功能描述: |
| DS12885Q/T&R | 功能描述:實(shí)時(shí)時(shí)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(shí)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 |
| DS12885Q+ | 功能描述:實(shí)時(shí)時(shí)鐘 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(shí)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)。