參數(shù)資料
型號(hào)： DS17487
廠商： Maxim Integrated Products, Inc.
英文描述： 3 Volt/5 Volt Real Time Clock(3V/5V實(shí)時(shí)時(shí)鐘)
文件頁(yè)數(shù)： 28/32頁(yè)
文件大?。?/td> 236K
代理商： DS17487
DS17485/DS17487
030598 28/32
BURST MODE TIMING WAVEFORM
ALE
CS
AD(7:0)
RD OR WR
ADDRESS + 1
ADDRESS + 2
PW
RWL
PW
RWH
53h
DATA
DATA
NOTES:
1. All voltages are referenced to ground.
2. Typical values are at 25
°
C and nominal supplies.
3. Outputs are open.
4. Write protection trip point occurs during power fail prior to switchover from V
CC
to V
BAT
.
5. Applies to the AD0–AD7 pins, and the SQW pin when each is in a high impedance state.
6. The IRQ and PWR pins are open drain.
7. Measured with a load of 50 pF + 1 TTL gate.
8. Wakeup kickstart timeout generated only when the oscillator is enabled and the countdown chain is not reset.
9. V
SW
is determined by the larger of V
BAT
and V
BAUX
.
10.The DS17487 will keep time to an accuracy of
±
1 minute per month during data retention time for the period of
t
DR
.
11. t
DR
is the amount of time that the internal battery can power the internal oscillator and internal registers of the
DS17487.
12.I
BAT1
and I
BAT2
are measured at V
BAT
= 3.5V.
13.Real–Time Clock Modules 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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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS17487-3 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
DS17487-3+ 功能描述:實(shí)時(shí)時(shí)鐘 3V/5V RTC 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
DS17487-3IND 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
DS17487-3IND+ 功能描述:實(shí)時(shí)時(shí)鐘 3V/5V RTC 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
DS174875 制造商:Maxim Integrated Products 功能描述:
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