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參數(shù)資料
| 型號(hào)： | DS14285N |
| 英文描述： | Real Time Clock with NV RAM Control |
| 中文描述： | 實(shí)時(shí)時(shí)鐘的非易失RAM控制 |
| 文件頁數(shù)： | 22/25頁 |
| 文件大?。?/td> | 303K |
| 代理商： | DS14285N |
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.
I
CCO
=100 mA, V
CC
> V
BAT
.
8.
I
CCO
=100
μ
A, V
CC
< V
BAT
.
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
μ
A at 25
°
C.
11.
Z
CE
is an average input-to-output impedance as the input is swept from ground to V
CCI
and less than 4
mA is forced through Z
CE
.
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.
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| DS14285S | Real Time Clock with NV RAM Control |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS14285N+ | 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 |
| DS14285Q | 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 |
| DS14285Q+ | 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 |
| 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 |
| 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 |
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