am49dl640bg Meet Spansion Inc., am49dl640bg Datasheet - Page 50

• Manufacturer Part Number: am49dl640bg
• Description: 64 Mbit 8 M ? 8-bit/4 M ? 16-bit Cmos And 32 Mbit 512k ? 16-bit Pseudo Static Ram Preliminary
• Manufacturer: Meet Spansion Inc.

FLASH AC CHARACTERISTICS
March 8, 2002
* For sector protect, A6 = 0, A1 = 1, A0 = 0. For sector unprotect, A6 = 1, A1 = 1, A0 = 0, SADD = Sector Address.
A6, A1, A0
RESET#
SADD,
CE#f
WE#
Data
OE#
V
V
ID
IH
Sector/Sector Block Protect or Unprotect
1 µs
60h
Figure 26. Sector/Sector Block Protect and
Valid*
Unprotect Timing Diagram
P R E L I M I N A R Y
60h
Am49DL640BG
Sector/Sector Block Unprotect: 15 ms
Sector/Sector Block Protect: 150 µs,
Valid*
Verify
40h
Status
Valid*
49