參數(shù)資料
型號(hào)： DS14285QN
廠商： DALLAS SEMICONDUCTOR
元件分類： Timer or RTC
英文描述： 1 TIMER(S), REAL TIME CLOCK, PQCC28
封裝： PLASTIC, LCC-28
文件頁(yè)數(shù)： 15/25頁(yè)
文件大?。?/td> 303K
代理商： DS14285QN
DS14285/DS14287
22 of 25
NOTES:
1. All voltages are referenced to ground.
2. All outputs are open.
3. The MOT pin has an internal pull-down of 20 k
.
4. The CEI pin has an internal pull-up of 50 k
.
5. Applies to the AD0-AD7 pins, the IRQ pin, and the SQW pin when each is in the high impedance
state.
6. The IRQ pin is open drain. The interrupt and the internal clock continue to run regardless of the level
of VCC. However, it is important to insure that the pullup resistor used with the interrupt pin is never
pulled up to a value which is greater than VCC + 0.3V. As VCC falls below approximately 3.0 volts,
a power switching circuit turns the lithium energy source on to maintain the clock and timer data
functionality.
7. ICCO =100 mA, VCC > VBAT.
8. ICCO =100
A, V
CC < VBAT.
9. Measured with a load as shown in Figure 5.
10. Expected data retention is based on using an external SRAM with a data retention current of less than
1
A at 25°C.
11. ZCE is an average input-to-output impedance as the input is swept from ground to VCCI and less than 4
mA is forced through ZCE.
12. Real-Time Clock Modules such as the DS14287 can be successfully processed through conventional
wave-soldering techniques 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.
相關(guān)PDF資料
PDF描述
DS14285S 1 TIMER(S), REAL TIME CLOCK, PDSO24
DS14285N 1 TIMER(S), REAL TIME CLOCK, PDIP24
DS14285SN 1 TIMER(S), REAL TIME CLOCK, PDSO24
DS14285Q 1 TIMER(S), REAL TIME CLOCK, PQCC28
DS14285 1 TIMER(S), REAL TIME CLOCK, PDIP24
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS14285QN+ 功能描述:實(shí)時(shí)時(shí)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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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
DS14285S 功能描述:實(shí)時(shí)時(shí)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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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
DS14285S/T&R 制造商:Maxim Integrated Products 功能描述:IC RTC W/NV RAM CNTRL 24-SOIC
DS14285S/T&R 功能描述:實(shí)時(shí)時(shí)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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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
DS14285S/TR 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Real-Time Clock with NV RAM
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