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参数资料
| 型号： | DS1486P-120 |
| 厂商： | DALLAS SEMICONDUCTOR |
| 元件分类： | Timer or RTC |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, DMA34 |
| 封装： | POWERCAP MODULE BOARD-34 |
| 文件页数： | 5/17页 |
| 文件大小： | 477K |
| 代理商： | DS1486P-120 |
DS1486/DS1486P
13 of 17
NOTES:
1.
WE
is high for a read cycle.
2. OE = VIH or VIL. If OE = VIH during write cycle, the output buffers remain in a high impedance state.
3. tWP is specified as the logical AND of the CE and WE . tWP is measured from the latter of CE or WE
going low to the earlier of CE or WE going high.
4. tDS or tDH are measured from the earlier of CE or WE going high.
5. tDH is measured from WE going high. If CE is used to terminate the write cycle, then tDH = 20 ns for
-120 parts and tDH = -25 ns for -150 parts.
6. If the CE low transition occurs simultaneously with or later than the WE low transition in write cycle
1, the output buffers remain in a high impedance state during this period.
7. If the CE high transition occurs prior to or simultaneously with the WE high transition, the output
buffers remain in a high impedance state during this period.
8. If WE is low or the WE low transition occurs prior to or simultaneously with the CE low transition,
the output buffers remain in a high impedance state during this period.
9. Each DS1486 is marked with a four-digit date code AABB. AA designates the year of manufacture.
BB designates the week of manufacture. The expected tDR is defined for DIP Modules as starting at
the date of manufacture.
10. All voltages are referenced to ground.
11. Applies to both interrupt pins when the alarms are set to pulse.
12. Interrupt output occurs within 100 ns on the alarm condition existing.
13. Both INTA and INTB (INTB) are open drain outputs.
14. Real-Time Clock Modules (DIP) can be successfully processed through conventional wave-soldering
tech-niques as long as temperature exposure to the lithium energy source contained within does not
exceed +85
°C. Post-solder cleaning with water washing techniques is acceptable, provided that
ultrasonic vibration is not used.
In addition, for the PowerCap version:
a. Dallas Semiconductor recommends that PowerCap Module bases experience one pass through
solder reflow oriented with the label side up (“live - bug”).
b. Hand Soldering and touch-up: Do not touch or apply the soldering iron to leads for more than
3 seconds. To solder, apply flux to the pad, heat the lead frame pad and apply solder. To
remove the part, apply flux, heat the lead frame pad until the solder reflows and use a solder
wick to remove solder.
相关PDF资料 |
PDF描述 |
|---|---|
| DS1500WEN | 1 TIMER(S), REAL TIME CLOCK, PDSO32 |
| DS1500WE | REAL TIME CLOCK, PDSO32 |
| DS1500W | REAL TIME CLOCK, PDIP32 |
| DS1500WN | REAL TIME CLOCK, PDIP32 |
| DS1500YE | REAL TIME CLOCK, PDSO32 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1486P-120+ | 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 |
| DS1486P-150 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:RAMified Watchdog Timekeeper |
| DS1487 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Low Power RS-485 1⁄4 Unit Load Multipoint Transceiver |
| DS1487M | 功能描述:RS-422/RS-485 接口 IC RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
| DS1487M/NOPB | 功能描述:RS-422/RS-485 接口 IC LO PR RS485/1/4 UNIT LOAD MULTIPT XCVR RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
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