48 Am49DL640BG March 8, 2002
PRELIMINARY
FLASH AC CHARACTERISTICS
Temporary Sector Unprotect
Note: Not 100% tested.
Parameter
All S pe e d Op t ion sJE DEC Std Description Unit
t
VIDR
V
ID
Rise and Fall Time (See Note) Min 500 ns
t
VHH
V
HH
Rise and Fall Time (See Note) Min 250 ns
t
RSP
RESET# Setup Time for Temporary Sector
Unprotect
Min 4 µs
t
RRB
RESET# Hold Time from RY/BY# High for
Temporary Sector Unprotect
Min 4 µs
RESET#
t
VIDR
V
ID
V
SS
, V
IL
,
or V
IH
V
ID
V
SS
, V
IL
,
or V
IH
CE#f
WE#
RY/BY#
t
VIDR
t
RSP
Program or Erase Command Sequence
t
RRB
Figure 25. Temporary Sector Unprotect Timing Diagram
