
DS1315 Phantom Time Chip
11 of 21
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Write Cycle
tWC
65
ns
CEI
Pulse Width
tCW
55
ns
OE
Pulse Width
tOW
55
ns
Write Recovery
tWR
10
ns
4
Data Setup
tDS
30
ns
5
Data Hold Time
tDH
0
ns
5
RST
Pulse Width
tRST
65
ns
DC OPERATING ELECTRICAL CHARACTERISTICS
(VCC = 3.3V ±10%, TA = Over the operating range.)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Average VCC Power-Supply
Current
ICC1
3
mA
6
Average VCC Power-Supply
Current,
(VCCO = VCCI - 0.3)
ICC01
100
mA
7
TTL Standby Current
( CEI = VIH)
ICC2
2
mA
6
CMOS Standby Current
( CEI = VCCI - 0.2)
ICC3
1.1
mA
6
Input Leakage Current
(any input)
IIL
-1
+1
A
Output Leakage Current
(any input)
ILO
-1
+1
A
Output Logic 1 Voltage
(IOUT = 0.4 mA)
VOH
2.4
V
2
Output Logic 0 Voltage
(IOUT = 1.6 mA)
VOL
0.4
V
2
Power-Fail Trip Point
VPF
2.8
2.97
V
Battery Switch Voltage
VSW
VBAT1,
VBAT2,
or VPF
14
DC POWER-DOWN ELECTRICAL CHARACTERISTICS
(VCC < 2.97V, TA = Over the operating range.)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
CEO
Output Voltage
VCEO
VCCI
or
VBAT1,2
- 0.2
V
8
VBAT1 OR VBAT2 Battery Current
IBAT
0.5
A
6
Battery Backup Current
at VCCO = VBAT - 0.2
ICCO2
10
A
9