Datasheet

DS1315 Phantom Time Chip
11 of 21
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Write Cycle
t
WC
65
ns
CEI
Pulse Width
t
CW
55
ns
OE
Pulse Width
t
OW
55
ns
Write Recovery
t
WR
10
ns
4
Data Setup
t
DS
30
ns
5
Data Hold Time
t
DH
0
ns
5
RST
Pulse Width
t
RST
65
ns
DC OPERATING ELECTRICAL CHARACTERISTICS
(V
CC
= 3.3V ±10%, T
A
= Over the operating range.)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Average V
CC
Power-Supply
Current
I
CC1
3 mA 6
Average V
CC
Power-Supply
Current,
(V
CCO
= V
CCI
- 0.3)
I
CC01
100 mA 7
TTL Standby Current
(
CEI
= V
IH
)
I
CC2
2 mA 6
CMOS Standby Current
(
CEI
= V
CCI
- 0.2)
I
CC3
1.1 mA 6
Input Leakage Current
(any input)
I
IL
-1 +1 µA
Output Leakage Current
(any input)
I
LO
-1 +1 µA
Output Logic 1 Voltage
(I
OUT
= 0.4 mA)
V
OH
2.4 V 2
Output Logic 0 Voltage
(I
OUT
= 1.6 mA)
V
OL
0.4 V 2
Power-Fail Trip Point
V
PF
2.8
2.97
V
Battery Switch Voltage V
SW
V
BAT1
,
V
BAT2
,
or V
PF
14
DC POWER-DOWN ELECTRICAL CHARACTERISTICS
(V
CC
< 2.97V, T
A
= Over the operating range.)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
CEO
Output Voltage
V
CEO
V
CCI
or
V
BAT1,2
- 0.2
V 8
V
BAT1
OR V
BAT2
Battery Current I
BAT
0.5 µA 6
Battery Backup Current
at V
CCO
= V
BAT
- 0.2
I
CCO2
10 µA 9