P R E L I M I N A R Y
FLASH AC CHARACTERISTICS
V
V
ID
IH
RESET#
SADD,
Valid*
Valid*
Valid*
Status
A6, A1, A0
Sector/Sector Block Protect or Unprotect
60h 60h
Verify
40h
Data
Sector/Sector Block Protect: 150 µs,
Sector/Sector Block Unprotect: 15 ms
1 µs
CE#f
WE#
OE#
* For sector protect, A6 = 0, A1 = 1, A0 = 0. For sector unprotect, A6 = 1, A1 = 1, A0 = 0, SADD = Sector Address.
Figure 26. Sector/Sector Block Protect and
Unprotect Timing Diagram
July 19, 2002
Am49DL32xBG
51