Ac electrical characteristics (0, C to +70, C; v – Rainbow Electronics DS1254 User Manual
Page 9: 3v ± 10%)
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DS1254
9 of 17
AC ELECTRICAL CHARACTERISTICS
(0
°
C to +70
°
C; V
CC
= 3.3V
±
10%)
PARAMETER
SYMBOL
MIN
MAX
UNITS
NOTES
Read Cycle Time
t
RC
150
nS
Address Access Time
t
AAC
150
nS
OE
to Output Valid
t
OE
75
nS
CE
to Output Valid
t
CO
150
nS
CE
or
OE
to Output Active
t
COE
5
nS
2
Output High- Z from Deselection
t
OD
70
nS
2
Output Hold from Address Change
t
OH
5
nS
Write Cycle Time
t
WC
150
nS
WE
,
CE
Pulse Width
t
WP
100
nS
5
Address Setup Time
t
AW
0
nS
t
AH1
5
nS
6
Address Hold Time
t
AH2
25
nS
7
Output High- Z from
WE
t
ODW
70
nS
2
Output Active from
WE
t
OEW
5
nS
2
Data Setup Time
t
DS
60
nS
8
t
DH1
0
nS
6
Data Hold Time
t
DH2
20
nS
8
Read Recovery
(Clock Access Only)
t
RR
20
nS
Write Recovery
(Clock Access Only)
t
WR
20
nS
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