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参数资料
| 型号： | DS1315E-5 |
| 厂商： | DALLAS SEMICONDUCTOR |
| 元件分类： | Timer or RTC |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO20 |
| 封装： | TSSOP-20 |
| 文件页数： | 18/21页 |
| 文件大小： | 523K |
| 代理商： | DS1315E-5 |
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.
相关PDF资料 |
PDF描述 |
|---|---|
| DS1315SN-33 | 0 TIMER(S), REAL TIME CLOCK, PDSO16 |
| DS1330ABP-100 | 32K X 8 NON-VOLATILE SRAM MODULE, 100 ns, DMA34 |
| DS1330YP-100 | 32K X 8 NON-VOLATILE SRAM MODULE, 100 ns, DMA34 |
| DS1330ABP-70 | 32K X 8 NON-VOLATILE SRAM MODULE, 70 ns, DMA34 |
| DS1330WP-150 | 32K X 8 NON-VOLATILE SRAM MODULE, 150 ns, DMA34 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1315E-5+ | 功能描述:实时时钟 Phantom Time Chip RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| DS1315E-5V | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Real-Time Clock |
| DS1315EN-33 | 功能描述:实时时钟 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| DS1315EN-33/R | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Phantom Time Chip |
| DS1315EN-33/T | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Phantom Time Chip |
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