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BQ3285ESS 데이터시트(PDF) 18 Page - Texas Instruments

부품명 BQ3285ESS
상세설명  Real-Time Clock RTC
PDF  29 Pages
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제조업체  TI [Texas Instruments]
홈페이지  http://www.ti.com
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BQ3285ESS 데이터시트(HTML) 18 Page - Texas Instruments

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Read/Write Timing—bq3285L (T
A = TOPR,VCC = 3.15V ± 0.45V)
Symbol
Parameter
Minimum
Typical
Maximum
Unit
Notes
tCYC
Cycle time
270
-
-
ns
tDSL
DS low or RD/WR high time
135
-
-
ns
tDSH
DS high or RD/WR low time
90
-
-
ns
tRWH
R/W hold time
0
-
-
ns
tRWS
R/W setup time
15
-
-
ns
tCS
Chip select setup time
8
-
-
ns
tCH
Chip select hold time
0
-
-
ns
tDHR
Read data hold time
0
-
40
ns
tDHW
Write data hold time
0
-
-
ns
tAS
Address setup time
30
-
-
ns
tAH
Address hold time
15
-
-
ns
tDAS
Delay time, DS to AS rise
15
-
-
ns
tASW
Pulse width, AS high
50
-
-
ns
tASD
Delay time, AS to DS rise (RD/WR
fall)
55
-
-
ns
tOD
Output data delay time from DS rise
(RD fall)
-
-
100
ns
tDW
Write data setup time
50
-
-
ns
tBUC
Delay time before update cycle
-
244
-
µs
tPI
Periodic interrupt time interval
----
See Table 3
tUC
Time of update cycle
-
1
-
µs
bq3285E/L



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