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AM29F400B Datasheet(PDF) 27 Page - Advanced Micro Devices

Part # AM29F400B
Description  4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory
PDF  37 Pages
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Manufacturer  AMD [Advanced Micro Devices]
Direct Link  http://www.amd.com
Logo AMD - Advanced Micro Devices

AM29F400B Datasheet(HTML) 27 Page - Advanced Micro Devices

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Am29F400B
27
PR ELIMIN A R Y
AC CHARACTERISTICS
Erase/Program Operations
Notes:
1. Not 100% tested.
2. See the “Erase and Programming Performance” section for more information.
Parameter
-55
-60
-70
-90
-120
-150
JEDEC
Std.
Description
Unit
tAVAV
tWC
Write Cycle Time (Note 1)
Min
55
60
70
90
120
150
ns
tAVWL
tAS
Address Setup Time
Min
0
ns
tWLAX
tAH
Address Hold Time
Min
45
45
45
45
50
50
ns
tDVWH
tDS
Data Setup Time
Min
25
30
30
45
50
50
ns
tWHDX
tDH
Data Hold Time
Min
0
ns
tOES
Output Enable Setup Time
Min
0
ns
tGHWL
tGHWL
Read Recovery Time Before Write
(OE# High to WE# Low)
Min
0
ns
tELWL
tCS
CE# Setup Time
Min
0
ns
tWHEH
tCH
CE# Hold Time
Min
0
ns
tWLWH
tWP
Write Pulse Width
Min
30
35
35
45
50
50
ns
tWHWL
tWPH
Write Pulse Width High
Min
20
ns
tWHWH1
tWHWH1
Programming Operation
(Note 2)
Byte
Typ
7
µs
Word
Typ
12
tWHWH2
tWHWH2 Sector Erase Operation (Note 2)
Typ
1
sec
tVCS
VCC Setup Time (Note 1)
Min
50
µs
tRB
Recovery Time from RY/BY#
Min
0
ns
tBUSY
Program/Erase Valid to RY/BY#
Delay
Min
30
30
30
35
50
55
ns



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