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參數資料
| 型號： | DS1347T+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 3/17頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC RTC/CALENDAR SPI 8TDFN |
| 產品培訓模塊： | Obsolescence Mitigation Program |
| 標準包裝： | 1 |
| 類型： | 時鐘/日歷 |
| 特點： | 警報器，閏年，SRAM |
| 時間格式： | HH:MM:SS（12/24 小時） |
| 數據格式： | YY-MM-DD-dd |
| 接口： | SPI |
| 電源電壓： | 2 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-WDFN 裸露焊盤 |
| 供應商設備封裝： | 8-TDFN EP |
| 包裝： | 管件 |
Low-Current, SPI-Compatible
Real-Time Clock
Maxim Integrated
11
DS1347
Control Register (0Fh)
Status Register (17h)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
WP
0
ID
0
BIT 7
WP: Write-Protect RAM. If the WP bit is logic one, writing to the 31 bytes of RAM is inhibited. This bit is cleared
(0) when power is first applied.
BIT 0
ID: Device Identification Bit. The content of this bit does not alter the component functionality. This bit is cleared
(0) when power is first applied.
Alarm Configuration Register (15h)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
0
YEAR
DAY
MONTH
DATE
HOUR
MINUTE
SECOND
0
Alarm Seconds Register (19h)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
0
10 SECONDS
SECONDS
0
1
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
EOSC
DOSF
EGFIL
0
OSF
0
1
BIT 7
EOSC: Enable Oscillator. When the EOSC bit is logic 0, the oscillator is enabled. When this bit is logic 1, the
oscillator is disabled. This bit is cleared (0) when power is first applied.
BIT 6
DOSF: Disable Oscillator Stop Flag. When the DOSF bit is set to 1, sensing of the oscillator conditions that would
set the OSF bit is disabled. OSF remains at 0 regardless of what happens to the oscillator. This bit is cleared (0)
on the initial application of power.
BIT 5
EGFIL: Enable Glitch Filter. When the EGFIL bit is 1, the 5μs glitch filter at the output of crystal oscillator is
enabled. The glitch filter is disabled when this bit is 0. This bit is cleared (0) on the initial application of power.
BIT 2
OSF: Oscillator Stop Flag. If the OSF bit is 1, the oscillator either has stopped or was stopped for some period and
could be used to judge the validity of the clock and calendar data. This bit is edge triggered and is set to 1 when
the internal circuitry senses the oscillator has transitioned from a normal run state to a stop condition. This bit
remains at logic 1 until written to logic 0. Attempting to write OSF to 1 leaves the value unchanged. The following
are examples of conditions that can cause the OSF bit to be set:
1) The first time power is applied.
2) The voltage present on VCC is insufficient to support oscillation.
3) The
EOSC bit is set to logic 1.
4) External influences on the crystal (i.e., noise, leakage, etc.).
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相關代理商/技術參數 |
參數描述 |
|---|---|
| DS1347T+ | 功能描述:實時時鐘 Low Power SPI RTC For 12.5Pf Crystal 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 |
| DS1347T+T&R | 制造商:Maxim Integrated Products 功能描述:LOW POWER SPI RTC FOR 12.5PF CRYSTA - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC RTC/CALENDAR SPI 8TDFN 制造商:Maxim Integrated Products 功能描述:Real Time Clock Low Power SPI RTC For 12.5Pf Crystal |
| DS1347T+T&R | 功能描述:實時時鐘 Low Power SPI RTC For 12.5Pf Crystal 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 |
| DS135 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:1.0A Power Rectifier |
| DS1350AB | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:4096k Nonvolatile SRAM with Battery Monitor |
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