AM29F400B AMD [Advanced Micro Devices], AM29F400B Datasheet - Page 29

• 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
Notes:
1. SA = sector address (for Sector Erase), VA = Valid Address for reading status data (see “Write Operation Status”).
2. Illustration shows device in word mode.
Addresses
RY/BY#
WE#
Data
CE#
OE#
V
CC
t
VCS
t
Erase Command Sequence (last two cycles)
t
CS
GHWL
Figure 14. Chip/Sector Erase Operation Timings
2AAh
t
WC
t
WP
t
DS
55h
t
t
DH
CH
555h for chip erase
t
WPH
P R E L I M I N A R Y
Am29F400B
t
AS
SA
10 for Chip Erase
t
AH
30h
t
BUSY
t
WHWH2
Read Status Data
VA
Progress
In
VA
Complete
t
RB
21505C-18
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