DS17285S-3 查看數據表（PDF） - Maxim Integrated
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DS17285S-3 Datasheet PDF : 31 Pages
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DS17285/DS17287/
DS17485/DS17487/
DS17885/DS17887
AC Electrical Characteristics
(VCC = +2.7V to +3.7V, TA = Over the operating range, unless otherwise noted.) (Note 2)
PARAMETER
Cycle Time
Pulse Width, RD or WR Low
Pulse Width, RD or WR High
Input Rise and Fall
Chip-Select Setup Time Before
RD or WR
SYMBOL
tCYC
PWRWL
PWRWH
tR, tF
tCS
CONDITIONS
Chip-Select Hold Time
Read-Data Hold Time
Write-Data Hold Time
Address Setup Time to ALE Fall
Address Hold Time to ALE Fall
RD or WR High Setup to ALE
Rise
tCH
tDHR
tDHW
tASL
tAHL
tASD
Pulse Width ALE High
Delay Time ALE Low to RD Low
Output Data Delay Time from RD
Data Setup Time
IRQ Release from RD
PWASH
tASED
tDDR
tDSW
tIRD
(Note 8)
Real-Time Clocks
MIN TYP MAX UNITS
360
DC
ns
200
ns
150
ns
30
ns
20
ns
0
ns
10
90
ns
0
ns
40
ns
10
ns
30
ns
40
ns
30
ns
20
200
ns
70
ns
2
µs
Write Timing
AS
RD
WR
CS
AD0–AD7
WRITE
PWASH
tASD
tASD
PWRWH
tASL
tASED
tCS
tAHL
tCYC
PWRWL
tDSW
tCH
tDHW
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