Rainbow Electronics DS1315 User Manual
Page 9
DS1315
041697 9/22
DC POWER DOWN ELECTRICAL CHARACTERISTICS
(0
°
C to 70
°
C; V
CC
< 4.5V)
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
µ
A
6
Battery Backup Current
@ V
CCO
= V
BAT
–0.2V
I
CCO2
10
µ
A
9
AC ELECTRICAL OPERATING CHARACTERISTICS
ROM/RAM = GND
(0
°
C to 70
°
C; V
CC
= 5.0
±
10%)
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
60
ns
OE Pulse Width
t
OW
55
ns
RST Pulse Width
t
RST
65
ns
CEI Propagation Delay
t
PD
5
ns
2, 3, 11
CEI High to Power–Fail
t
PF
0
ns
11