EN29LV641H/L EN29LV640U
AC CHARACTERISTICS
Temporary Sector Group Unprotect
Speed Option
70R 90
Unit
Parameter
Description
Std
tVIDR
tVIHH
VID Rise and Fall Time
VHH Rise and Fall Time
Min
Min
500
500
Ns
Ns
RESET# Setup Time for Temporary
Sector Unprotect
tRSP
Min
4
µs
Figure 10. Temporary Sector Group Unprotect Timing Diagram
VID
RESET#
0 or 3 V
0 or 3 V
tVIDR
tVIDR
CE#
WE#
tRSP
AC CHARACTERISTICS
Figure 11. Sector Group Protect and Unprotect Timing Diagram
VID
Vcc
RESET#
0V
0V
tVIDR
tVIDR
SA,
A6,A1,A0
Valid
60h
Valid
Valid
Data
60h
40h
Status
Sector Protect/Unprotect
Verify
CE#
>0.4µS
WE#
>1µS
Protect: 150 uS
Unprotect: 15 mS
OE#
Notes:
Use standard microprocessor timings for this device for read and write cycles.
For Sector Group Protect, use A6=0, A1=1, A0=0. For Sector Group Unprotect, use A6=1, A1=1, A0=0.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2005 Eon Silicon Solution, Inc., www.essi.com.tw
41
Rev. B, Issue Date: 2005/06/27
EON [ EON SILICON SOLUTION INC. ]
