Datasheet

DS1315 Phantom Time Chip
12 of 21
AC ELECTRICAL OPERATING CHARACTERISTICS—ROM/
RAM
= GND
(V
CC
= 3.3V ±10%, T
A
= Over the operating range.)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Read Cycle Time
t
RC
120
ns
CEI
Access Time
t
CO
100
ns
OE
Access Time
t
OE
100
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
40
ns
OE
to Output High-Z
t
ODO
40
ns
Read Recovery
t
RR
20
ns
Write Cycle
t
WC
120
ns
Write Pulse Width
t
WP
100
ns
Write Recovery
t
WR
20
ns
4
Data Setup
t
DS
45
ns
5
Data Hold Time
t
DH
0
ns
5
CEI
Pulse Width
t
CW
100
ns
OE
Pulse Width
t
OW
100
ns
RST
Pulse Width
t
RST
120
ns