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參數(shù)資料
| 型號： | DS1315EN-33 |
| 英文描述： | Phantom Time Chip |
| 中文描述： | 幻影時鐘芯片 |
| 文件頁數(shù)： | 6/21頁 |
| 文件大?。?/td> | 523K |
| 代理商： | DS1315EN-33 |
DS1315
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ROM/TIME CHIP INTERFACE
Figure 4
TIME CHIP REGISTER INFORMATION
Time Chip information is contained in eight registers of 8 bits, each of which is sequentially accessed 1
bit at a time after the 64-bit pattern recognition sequence has been completed. When updating the Time
Chip registers, each must be handled in groups of 8 bits. Writing and reading individual bits within a
register could produce erroneous results. These read/write registers are defined in Figure 5.
Data contained in the Time Chip registers is in binary coded decimal format (BCD). Reading and writing
the registers is always accomplished by stepping though all eight registers, starting with bit 0 of register 0
and ending with bit 7 of register 7.
AM–PM/12/24 MODE
Bit 7 of the hours register is defined as the 12- or 24-hour mode select bit. When high, the 12-hour mode
is selected. In the 12-hour mode, bit 5 is the AM/PM bit with logic high being PM. In the 24-hour mode,
bit 5 is the second 10-hour bit (20-23 hours).
OSCILLATOR AND RESET BITS
Bits 4 and 5 of the day register are used to control the reset and oscillator functions. Bit 4 controls the
reset pin input. When the reset bit is set to logic 1, the reset input pin is ignored. When the reset bit is set
to logic 0, a low input on the reset pin will cause the Time Chip to abort data transfer without changing
data in the timekeeping registers. Reset operates independently of all other in-puts. Bit 5 controls the
oscillator. When set to logic 0, the oscillator turns on and the real time clock/calendar begins to
increment.
ZERO BITS
Registers 1, 2, 3, 4, 5, and 6 contain 1 or more bits that will always read logic 0. When writing these
locations, either a logic 1 or 0 is acceptable.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1315EN-5 | Phantom Time Chip |
| DS1318 | Parallel-Interface Elapsed Time Counter |
| DS1321 | Flexible Nonvolatile Controller with Lithium Battery Monitor |
| DS1330AB | 256k Nonvolatile SRAM with Battery Monitor |
| DS1330YP-100-IND | Isolation Transformer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1315EN-33/R | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Phantom Time Chip |
| DS1315EN-33/T | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Phantom Time Chip |
| DS1315EN-33/T&R | 制造商:Maxim Integrated Products 功能描述:MAXIM DS1315EN-33/T&R REAL TIME CLOCKS (RTC) - Tape and Reel 制造商:Maxim Integrated Products 功能描述:Maxim DS1315EN-33/T&R Real Time Clocks (RTC) 制造商:Maxim Integrated Products 功能描述:IC T-CHP PHANTOM 3.3V IN 20TSSOP |
| DS1315EN-33/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 |
| DS1315EN-33+ | 功能描述:實時時鐘 Phantom Time Chip 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 |
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