AM29F400B AMD [Advanced Micro Devices], AM29F400B Datasheet - Page 31

• Manufacturer Part Number: AM29F400B
• Description: 4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory
• Manufacturer: AMD [Advanced Micro Devices]

AC CHARACTERISTICS
Temporary Sector Unprotect
Note: Not 100% tested.
Note:
The system may use either CE# or OE# to toggle DQ2 and DQ6. DQ2 toggles only when read at an address within an
erase-suspended sector.
JEDEC
WE#
DQ6
DQ2
Parameter
RESET#
RY/BY#
Embedded
WE#
CE#
Erasing
t
Enter
Std.
t
VIDR
RSP
12 V
0 or 5 V
Description
RESET# Setup Time for Temporary Sector
Unprotect
V
ID
Erase
Rise and Fall Time (See Note)
Figure 18. Temporary Sector Unprotect Timing Diagram
Suspend
Erase
t
VIDR
Erase Suspend
Read
t
RSP
Figure 17. DQ2 vs. DQ6
Suspend Program
Enter Erase
P R E L I M I N A R Y
Program or Erase Command Sequence
Am29F400B
Suspend
Program
Erase
Min
Min
Erase Suspend
Read
All Speed Options
Resume
Erase
t
500
VIDR
Erase
4
0 or 5 V
Complete
21505C-22
21505C-21
Erase
Unit
ns
µs
31