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参数资料
| 型号： | DS1500W |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | Timer or RTC |
| 英文描述： | REAL TIME CLOCK, PDIP32 |
| 封装： | DIP-32 |
| 文件页数： | 5/25页 |
| 文件大小： | 214K |
| 代理商： | DS1500W |
DS1500/DS1510
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PAB - Power Active Bar Control Bit (0 EH bit 4)
When this bit is "0", the PWR pin is in the active low state. When this bit is "1", the PWR pin is in the
high impedance state. This bit can be written to a "1" or "0" by the user. If either WF AND WIE = "1" OR
KF AND KSE = "1", the PAB bit will be cleared to a "0".
TDF - Time of Day/Date Alarm Flag (0 EH bit 3)
A "1" in the TDF bit indicates that the current time has matched the alarm time. If the TIE bit is also a
"1", the IRQ pin will go low and a "1" will appear in the IRQF bit.
KSF - Kickstart Flag (0 EH bit 2)
This bit is set to a "1" when a kickstart condition occurs or when the user writes it to a "1". This bit is
cleared by writing it to a "0".
WDF - Watchdog Flag (0 EH bit 1)
If the processor does not access the DS1500/DS1510 with a write within the period specified in addresses
0CH and 0DH, the WDF bit will be set to a "1". WDF is cleared by writing it to a "0".
IRQF - Interrupt Request Flag (0 EH bit 0)
The Interrupt Request Flag (IRQF) bit is set to a "1" when one or more of the following are true:
TDF = TIE = "1"
KSF = KIE = "1"
WDF = WDE = "1"
i.e., IRQF = (TDF
TIE) + (KSF KIE) + (WDF WDE)
Any time the IRQF bit is a "1", the IRQ pin is driven low.
TE - Transfer Enable Bit (0 FH bit 7)
When the TE bit is a "1", the update transfer functions normally by advancing the counts once per second.
When the TE bit is written to a "0", any update transfer is inhibited and the program can initialize the time
and calendar bytes without an update occurring in the midst of initializing. Read cycles can be executed in
a similar manner. TE is a read/write bit that is not modified by internal functions of the DS1500/DS1510.
CS - Crystal Select Bit (0 FH bit 6)
When CS is set to a "0", the oscillator is configured for operation with a crystal that has a 6 pF specified
load capacitance. When CS="1", the oscillator is configured for a 12.5 pF crystal. CS is disabled in the
DS1510 module and should be set to CS="0".
BME - Burst Mode Enable Bit (0 FH bit 5)
The burst mode enable bit allows the extended user RAM address registers to automatically increment for
consecutive reads and writes. When BME is set to a "1", the automatic incrementing will be enabled and
when BME is set to a "0", the automatic incrementing will be disabled.
TPE - Time of Day/Date Alarm Power Enable Bit (0 FH bit 4)
The wake up feature is controlled through the TPE bit. When the TDF flag bit is set to a "1", if TPE is a
"1", the PWR pin will be driven active. Therefore, setting TPE to "1" enables the wake up feature.
Writing a "0" to TPE disables the wake up feature.
TIE - Time of Day/Date Alarm Interrupt Enable Bit (0 FH bit 3)
相关PDF资料 |
PDF描述 |
|---|---|
| DS1500WN | REAL TIME CLOCK, PDIP32 |
| DS1500YE | REAL TIME CLOCK, PDSO32 |
| DS1500YEN | REAL TIME CLOCK, PDSO32 |
| DS1500YN | REAL TIME CLOCK, PDIP32 |
| DS1501WN | 1 TIMER(S), REAL TIME CLOCK, PDIP28 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1500WE | 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 |
| DS1500WE+ | 功能描述:实时时钟 Y2K-Compliant Watchdog 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 |
| DS1500WEN | 功能描述:IC RTC Y2KC W/NV CTRL 32-TSOP RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 实时时钟 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 类型:时钟/日历 特点:警报器，闰年，SRAM 存储容量:- 时间格式:HH:MM:SS（12/24 小时） 数据格式:YY-MM-DD-dd 接口:SPI 电源电压:2 V ~ 5.5 V 电压 - 电源，电池:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WDFN 裸露焊盘 供应商设备封装:8-TDFN EP 包装:管件 |
| DS1500WEN+ | 功能描述:实时时钟 Y2K-Compliant Watchdog 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 |
| DS1500WN | 功能描述:IC RTC Y2KC W/NV CTRL 32-DIP RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 实时时钟 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 类型:时钟/日历 特点:警报器，闰年，SRAM 存储容量:- 时间格式:HH:MM:SS（12/24 小时） 数据格式:YY-MM-DD-dd 接口:SPI 电源电压:2 V ~ 5.5 V 电压 - 电源，电池:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WDFN 裸露焊盘 供应商设备封装:8-TDFN EP 包装:管件 |
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