AM29F400B AMD [Advanced Micro Devices], AM29F400B Datasheet - Page 32

• 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
Alternate CE# Controlled Erase/Program Operations
Notes:
1. Not 100% tested.
2. See the “Erase and Programming Performance” section for more information.
32
t
t
JEDEC
WHWH1
WHWH2
t
t
t
t
t
t
t
t
t
t
EHWH
DVEH
EHDX
GHEL
WLEL
ELAX
ELEH
EHEL
AVAV
AVEL
Parameter
t
t
WHWH1
WHWH2
t
Std.
t
GHEL
t
t
t
t
t
t
t
t
OES
t
CPH
WC
WH
WS
AS
AH
DS
DH
CP
Description
Write Cycle Time (Note 1)
Address Setup Time
Address Hold Time
Data Setup Time
Data Hold Time
Output Enable Setup Time
Read Recovery Time Before Write
(OE# High to WE# Low)
WE# Setup Time
WE# Hold Time
CE# Pulse Width
CE# Pulse Width High
Programming Operation
(Note 2)
Sector Erase Operation (Note 2)
P R E L I M I N A R Y
Word
Byte
Am29F400B
Min
Min
Min
Min
Min
Min
Min
Min
Min
Min
Min
Typ
Typ
Typ
-55
55
45
25
30
-60
60
45
30
35
-70
70
45
30
35
20
12
0
0
0
0
0
0
7
1
-90
90
45
45
45
-120
120
50
50
50
-150
150
50
50
50
Unit
sec
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs