Datasheet

DS1315 Phantom Time Chip
10 of 21
DC POWER-DOWN ELECTRICAL CHARACTERISTICS
(V
CC
< 4.5V, T
A
= Over the operating range.)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
CEO
Output Voltage
V
CEO
V
CCI
- 0.2
or
V
BAT1,2
-
0.2
V 8
V
BAT1
or V
BAT2
Battery
Current
I
BAT
0.5 µA 6
Battery Backup Current
@ V
CCO
= V
BAT
-0.2V
I
CCO2
10 µA 9
AC ELECTRICAL OPERATING CHARACTERISTICS—ROM/
RAM
= GND
(V
CC
= 5.0V ±10%, T
A
= Over the operating range.)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Read Cycle Time
t
RC
65
ns
CEI
Access Time
t
CO
55
ns
OE
Access Time
t
OE
55
ns
CEI
to Output Low-Z
t
COE
5
ns
OE
to Output Low-Z
t
OEE
5
ns
CEI
to Output High-Z
t
OD
25
ns
OE
to Output High-Z
t
ODO
25
ns
Read Recovery
t
RR
10
ns
Write Cycle
t
WC
65
ns
Write Pulse Width
t
WP
55
ns
Write Recovery
t
WR
10
ns
4
Data Setup
t
DS
30
ns
5
Data Hold Time
t
DH
0
ns
5
CEI
Pulse Width
t
CW
55
ns
OE
Pulse Width
t
OW
55
ns
RST
Pulse Width
t
RST
65
ns
AC ELECTRICAL OPERATING CHARACTERISTICS—ROM/
RAM
= V
CCO
(V
CC
= 5.0V ±10%, T
A
= Over the operating range.)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Read Cycle Time
t
RC
65
ns
CEI
Access Time
t
CO
55
ns
OE
Access Time
t
OE
55
ns
CEI
to Output Low Z
t
COE
5
ns
OE
to Output Low Z
t
OEE
5
ns
CEI
to Output High Z
t
OD
25
ns
OE
to Output High Z
t
ODO
25
ns
Address Setup Time
t
AS
5
ns
Address Hold Time
t
AH
5
ns
Read Recovery
t
RR
10
ns