VCC = 3.0" />
鍙冩暩(sh霉)璩囨枡
鍨嬭櫉(h脿o)锛� DS1685QN-5/T&R
寤犲晢锛� Maxim Integrated Products
鏂囦欢闋佹暩(sh霉)锛� 19/34闋�
鏂囦欢澶�?銆�?/td> 0K
鎻忚堪锛� IC RTC 5V 64-BIT Y2KC IND 28PLCC
鐢�(ch菐n)鍝佸煿瑷�(x霉n)妯″锛� Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
妯�(bi膩o)婧�(zh菙n)鍖呰锛� 500
椤炲瀷锛� 鏅�(sh铆)閻�/鏃ユ
鐗归粸(di菐n)锛� 璀﹀牨(b脿o)鍣紝NVSRAM锛屾柟娉㈣几鍑�锛孻2K
瀛樺劜(ch菙)瀹归噺锛� 242B
鏅�(sh铆)闁撴牸寮忥細 HH:MM:SS锛�12/24 灏忔檪(sh铆)锛�
鏁�(sh霉)鎿�(j霉)鏍煎紡锛� YY-MM-DD-dd
鎺ュ彛锛� 骞惰伅(li谩n)
闆绘簮闆诲锛� 4.5 V ~ 5.5 V
闆诲 - 闆绘簮锛岄浕姹狅細 2.5 V ~ 3.7 V
宸ヤ綔婧害锛� -40°C ~ 85°C
瀹夎椤炲瀷锛� 琛ㄩ潰璨艰
灏佽/澶栨锛� 28-LCC锛圝 褰㈠紩绶氾級
渚涙噳(y墨ng)鍟嗚ō(sh猫)鍌欏皝瑁濓細 28-PLCC锛�11.51x11.51锛�
鍖呰锛� 甯跺嵎 (TR)
DS1685/DS1687 3V/5V Real-Time Clocks
26 of 34
RTC AC TIMING CHARACTERISTICS
(
VCC = 3.0V卤10%, TA = 0掳C to +70掳C, TA = -40掳C to +85掳C)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Cycle Time
4B
tCYC
260
DC
ns
Pulse Width, RD/WR Low
5B
PWRWL
100
ns
Pulse Width, RD/WR High
PWRWH
100
ns
Input Rise and Fall Time
tR, tF
30
ns
Chip-Select Setup Time
Before WR or RD
tCS
20
ns
Chip-Select Hold Time
tCH
0
ns
Read-Data Hold Time
tDHR
10
50
ns
Write-Data Hold Time
tDHW
0
ns
Muxed Address Valid Time to
ALE Fall
tASL
30
ns
Muxed Address Hold Time
from ALE Fall
tAHL
15
ns
RD
or WR High Setup to ALE
Rise
tASD
30
ns
Pulse-Width ALE High
PWASH
80
ns
ALE Low Setup to RD or WR
Fall
tASED
30
ns
Output-Data Delay Time from
RD
tDDR
20
80
ns
6
Data Setup Time
tDSW
60
ns
IRQ
Release from RD
tIRD
2
s
AC TEST CONDITIONS
Output Load: 50pF
Input Pulse Levels: 0 to 3.0V
Timing Measurement Reference Levels
Input : 1.5V
Output: 1.5V
Input Pulse Rise and Fall Times: 5ns
鐩搁棞(gu膩n)PDF璩囨枡
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鍙冩暩(sh霉)鎻忚堪
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DS1685S-3/TR 鍒堕€犲晢:DALLAS 鍒堕€犲晢鍏ㄧū:Dallas Semiconductor 鍔熻兘鎻忚堪:3V/5V Real-Time Clocks
DS1685S-3_12 鍒堕€犲晢:MAXIM 鍒堕€犲晢鍏ㄧū:Maxim Integrated Products 鍔熻兘鎻忚堪:3V/5V Real-Time Clocks
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