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参数资料
| 型号： | DS1384 |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | XO, clock |
| 英文描述： | Watchdog Timekeeping Controller(看门狗计时器芯片) |
| 中文描述： | 1 TIMER(S), REAL TIME CLOCK, PQFP44 |
| 封装： | QFP-44 |
| 文件页数： | 14/15页 |
| 文件大小： | 130K |
| 代理商： | DS1384 |
DS1384
062598 14/15
TIMING DIAGRAM: INTERRUPT OUTPUTS PULSE MODE (SEE NOTES 8, 9)
INTB
INTA, INTB
t
IPW
NOTES:
1. All voltages are referenced to ground.
2. Typical values are at 25
°
C and nominal supplies.
3. Outputs are open.
4. Value for voltage and currents is from the V
CCI
input pin to the V
CCO
pin.
5. Write protection trip point occurs during power fail prior to switchover from V
CC
to V
BAT
.
6. Value for voltage and currents is from the V
BAT
input pin to the V
CCO
pin.
7. Data retention time depends on the size of battery selected and the amount of current demanded by the static
RAM in back-up mode. The battery capacity (mA
hr) to achieve a T
DR
of 10 years is given by the formula:
C=(I
BAT1
+ I
RAM
) x 24 x 365 x 10, where I
RAM
is the standby current of the static RAM at the battery voltage. For
the DS1384 chip alone, a standard 48 mAh lithium cell battery will provide greater than 10 years of data retention
in the absence of power.
8. Applies to both interrupt pins when the alarms are set to pulse.
9. Interrupt output occurs within 100 ns of the alarm condition existing.
OUTPUT LOAD
+5 VOLTS
50 pF
D.U.T.
1.8 K
1 K
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PDF描述 |
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| DS1390-DS1393 | RIBBON CABLE, 34WAY, PER M; Cores, No. of:34; Conductor make-up:7/36AWG; Wire size, AWG:28AWG; Impedance:119R; Pitch:1.27mm; Voltage rating, AC:50V; Colour:Grey; Capacitance:70.5pF/m; Approval Bodies:UL; Approval category:Style RoHS Compliant: Yes |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1384FP | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Watchdog Timekeeping Controller |
| DS1384FP-12 | 功能描述:IC CTRLR RTC WDOG 120NS 44-MQFP 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 |
| DS1384FP-12+ | 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 |
| DS1384FP-120 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Real-Time Clock |
| DS1384T-120 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Real-Time Clock |
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