DS1315
DC POWER DOWN ELECTRICAL CHARACTERISTICS
(0擄C to 70擄C; V
CC
< 4.5V)
PARAMETER
CEO
Output Voltage
SYMBOL
V
CEO
MIN
V
CCI
-0.2
or
V
BAT1,2
-0.2
TYP
MAX
UNITS
V
NOTES
8
V
BAT1
or V
BAT2
Battery
Current
Battery Backup Current
@ V
CCO
= V
BAT
-0.2V
I
BAT
I
CCO2
0.5
10
碌A
碌A
6
9
AC ELECTRICAL OPERATING CHARACTERISTICS
ROM/
RAM
= GND
(0擄C to 70擄C; V
CC
= 5.0 鹵 10%)
PARAMETER
Read Cycle Time
CEI
Access Time
OE
Access Time
CEI
to Output Low Z
OE
to Output Low Z
CEI
to Output High Z
OE
to Output High Z
Read Recovery
Write Cycle
Write Pulse Width
Write Recovery
Data Setup
Data Hold Time
CEI
Pulse Width
OE
Pulse Width
RST
Pulse Width
SYMBOL
t
RC
t
CO
t
OE
t
COE
t
OEE
t
OD
t
ODO
t
RR
t
WC
t
WP
t
WR
t
DS
t
DH
t
CW
t
OW
t
RST
MIN
65
TYP
MAX
55
55
5
5
25
25
10
65
55
10
30
0
55
55
65
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTES
4
5
5
9 of 21