参数资料
型号: DS12885S
厂商: MAXIM INTEGRATED PRODUCTS INC
元件分类: Timer or RTC
英文描述: 1 TIMER(S), REAL TIME CLOCK, PDSO24
封装: 0.300 INCH, SOIC-24
文件页数: 16/22页
文件大小: 356K
代理商: DS12885S
DS12885/DS12887/DS12887A/DS12C887/DS12C887A
Real-Time Clock
_____________________________________________________________________
3
DC ELECTRICAL CHARACTERISTICS
(VCC = 0V, VBAT = 3.0V, TA = over the operating range, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
VBAT Current (OSC On);
TA = +25°C, VBACKUP = 3.0V
IBAT
(Note 8)
500
nA
VBAT Current (Oscillator Off)
IBATDR
(Note 8)
100
nA
AC ELECTRICAL CHARACTERISTICS
(VCC = 4.5V to 5.5V, TA = over the operating range.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Cycle Time
tCYC
385
DC
ns
Pulse Width, DS Low or R/W High
PWEL
150
ns
Pulse Width, DS High or R/W Low
PWEH
125
ns
Input Rise and Fall
tR, tF
30
ns
R/W Hold Time
tRWH
10
ns
R/W Setup Time Before DS/E
tRWS
50
ns
Chip-Select Setup Time Before
DS or R/W
tCS
20
ns
Chip-Select Hold Time
tCH
0ns
Read-Data Hold Time
tDHR
10
80
ns
Write-Data Hold Time
tDHW
0ns
Address Valid Time to AS Fall
tASL
30
ns
Address Hold Time to AS Fall
tAHL
10
ns
Delay Time DS/E to AS Rise
tASD
20
ns
Pulse Width AS High
PWASH
60
ns
Delay Time, AS to DS/E Rise
tASED
40
ns
Output Data Delay Time from DS
or R/W
tDDR
20
120
ns
Data Setup Time
tDSW
100
ns
Reset Pulse Width
tRWL
5s
IRQ Release from DS
tIRDS
2s
IRQ Release from RESET
tIRR
2s
相关PDF资料
PDF描述
DS12885QN 1 TIMER(S), REAL TIME CLOCK, PQCC28
DS12C887 1 TIMER(S), REAL TIME CLOCK, PDIP24
DS12887 1 TIMER(S), REAL TIME CLOCK, PDIP24
DS1302S 0 TIMER(S), REAL TIME CLOCK, PDSO8
DS1302N 0 TIMER(S), REAL TIME CLOCK, PDIP8
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