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AM29F400BB-70 Datasheet(PDF) 31 Page - SPANSION

Part # AM29F400BB-70
Description  4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory
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Manufacturer  SPANSION [SPANSION]
Direct Link  http://www.spansion.com
Logo SPANSION - SPANSION

AM29F400BB-70 Datasheet(HTML) 31 Page - SPANSION

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November 11, 2009 21505E8
Am29F400B
29
D A TA
SH EE T
AC CHARACTERISTICS
Erase/Program Operations
Notes:
1. Not 100% tested.
2. See the “Erase and Programming Performance” section for more information.
Parameter
Speed Options
JEDEC
Std
Description
-45
-50
-55
-70
-90
Unit
tAVAV
tWC
Write Cycle Time (Note 1)
Min
45
50
55
70
90
ns
tAVWL
tAS
Address Setup Time
Min
0
ns
tWLAX
tAH
Address Hold Time
Min
45
45
45
45
45
ns
tDVWH
tDS
Data Setup Time
Min
2525
2530
45
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
30
30
35
45
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
Max
30
30
30
30
35
ns


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