EN29LV640
AC CHARACTERISTICS
Table 13. Read-only Operations Characteristics
Parameter Symbols
JEDEC
Standard
Description
Read Cycle Time
B
Test
Setup
Min
CE# = V
IL
OE# = V
IL
B
B
B
B
B
B
B
Speed Options
90
90
90
90
35
20
20
0
0
10
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
AVAV
B
B
t
RC
B
B
B
t
AVQV
B
t
ACC
B
Address to Output Delay
Chip Enable To Output Delay
Max
Max
Max
Max
Max
Min
Min
Min
t
ELQV
B
B
B
t
CE
B
B
B
OE# = V
IL
B
B
B
B
t
GLQV
t
EHQZ
B
B
t
OE
B
B
Output Enable to Output Delay
Chip Enable to Output High Z
Output Enable to Output High Z
Output Hold Time from
Addresses, CE# or OE#,
whichever occurs first
B
t
DF
B
B
B
t
GHQZ
B
t
DF
B
B
t
AXQX
B
B
t
OH
B
t
OEH
B
B
Output Enable
Hold Time
Read
Toggle and
Data# Polling
Figure 2. AC Waveforms for READ Operations
t
RC
Addresses
Addresses Stable
t
ACC
CE#
t
DF
t
OE
t
OEH
OE#
WE#
t
CE
Output Valid
t
OH
HIGH Z
Outputs
Reset#
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
34
漏2005 Eon Silicon Solution, Inc., www.essi.com.tw
Rev. C, Issue Date: 2007/01/23