DS12887 데이터 시트보기 (PDF) - Maxim Integrated
부품명
상세내역
제조사
DS12887 Datasheet PDF : 22 Pages
| |||
Real-Time Clocks
DC ELECTRICAL CHARACTERISTICS
(VCC = 0V, VBAT = 3.0V, TA = over the operating range, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
VBAT Current (OSC On);
TA = +25°C, VBACKUP = 3.0V
VBAT Current (Oscillator Off)
IBAT
IBATDR
(Note 8)
(Note 8)
MIN TYP MAX UNITS
500
nA
100
nA
AC ELECTRICAL CHARACTERISTICS
(VCC = 4.5V to 5.5V, TA = over the operating range.) (Note 2)
PARAMETER
Cycle Time
Pulse Width, DS Low or R/W High
Pulse Width, DS High or R/W Low
Input Rise and Fall
R/W Hold Time
R/W Setup Time Before DS/E
Chip-Select Setup Time Before
DS or R/W
Chip-Select Hold Time
Read-Data Hold Time
Write-Data Hold Time
Address Valid Time to AS Fall
Address Hold Time to AS Fall
Delay Time DS/E to AS Rise
Pulse Width AS High
Delay Time, AS to DS/E Rise
Output Data Delay Time from DS
or R/W
Data Setup Time
Reset Pulse Width
IRQ Release from DS
IRQ Release from RESET
SYMBOL
tCYC
PWEL
PWEH
tR, tF
tRWH
tRWS
tCS
tCH
tDHR
tDHW
tASL
tAHL
tASD
PWASH
tASED
tDDR
tDSW
tRWL
tIRDS
tIRR
CONDITIONS
MIN TYP MAX UNITS
385
DC
ns
150
ns
125
ns
30
ns
10
ns
50
ns
20
ns
0
ns
10
80
ns
0
ns
30
ns
10
ns
20
ns
60
ns
40
ns
20
120
ns
100
ns
5
µs
2
µs
2
µs
_____________________________________________________________________ 3
Share Link: 