A29040B Series
AC Characteristics
Read Only Operations
Parameter Symbols
Speed
Description
Test Setup
Unit
JEDEC
Std
-55
-70
-90
Read Cycle Time (Note 2)
Address to Output Delay
tAVAV
tRC
Min.
55
70
90
ns
ns
= VIL
tAVQV
tACC
CE
Max.
55
70
90
= VIL
OE
Chip Enable to Output Delay
Output Enable to Output Delay
tELQV
tGLQV
tCE
Max.
Max.
Min.
55
30
0
70
30
0
90
35
0
ns
ns
ns
= VIL
OE
tOE
Read
Output Enable Hold
tOEH
Toggle and
Polling
Min.
10
10
Time (Note 2)
10
ns
Data
Chip Enable to Output High Z
(Notes 1,2)
tEHQZ
tGHQZ
tAXQX
tDF
tDF
tOH
Max.
Max.
Min.
18
18
0
20
20
0
20
20
0
ns
ns
ns
Output Enable to Output High Z
(Notes 1,2)
Output Hold Time from Addresses,
or
CE OE
, Whichever Occurs First
Notes:
1. Output driver disable time.
2. Not 100% tested.
Timing Waveforms for Read Only Operation
t
RC
Addresses
CE
Addresses Stable
t
ACC
t
DF
t
OE
OE
t
OEH
WE
t
CE
tOH
High-Z
High-Z
Output
Output Valid
0V
PRELIMINARY
(December, 2004, Version 0.2)
16
AMIC Technology, Corp.