Et r on Tech
EM565161
AC Characteristics and Operating Conditions (Ta = -40°C to 85°C, V
= 2.3V to 3.6V)
DD
Read Cycle
EM565161
-55 -70
Min Max Min Max
Symbol
Parameter
Unit
t
Read cycle time
55
−
70
−
−
−
RC
t
Address access time
55
55
55
25
55
−
70
70
70
35
70
−
AA
t
Chip Enable (CE1#) Access Time
Chip Enable (CE2) Access Time
Output enable access time
−
−
CO1
t
−
−
CO2
t
−
−
OE
t
Data Byte Control Access Time
−
−
BA
t
Chip Enable Low to Output in Low-Z
Output enable Low to Output in Low-Z
Data Byte Control Low to Output in Low-Z
Chip Enable High to Output in High-Z
Output Enable High to Output in High-Z
Data Byte Control High to Output in High-Z
Output Data Hold Time
10
5
10
5
ns
LZ
t
−
−
OLZ
t
10
−
10
−
−
−
BLZ
t
20
20
20
−
25
25
25
−
HZ
t
−
−
OHZ
t
−
−
BHZ
t
10
10
OH
Write Cycle
EM565161
-55 -70
Min Max Min Max
Symbol
Parameter
Unit
t
Write cycle time
55
45
45
45
0
70
55
60
60
0
−
−
−
−
WC
t
Write pulse width
WP
t
Chip Enable to end of write
Data Byte Control to end of Write
Address setup time
−
−
CW
t
−
−
BW
t
−
−
AS
ns
t
Write Recovery time
0
0
−
−
WR
t
WE# Low to Output in High-Z
WE# High to Output in Low-Z
Data Setup Time
20
−
20
−
−
−
WHZ
t
5
5
OW
t
25
0
30
0
−
−
DS
t
Data Hold Time
−
−
DH
AC Test Condition
Output load : 60pF + one TTL gate
Input pulse level : 0.4V, 2.4V
•
•
•
•
Timing measurements : 0.5 x V
DD
tR, tF : 5ns
Preliminary
5
Rev 0.9
Jan 2002
ETRON [ ETRON TECHNOLOGY, INC. ]
