AM29LV400BT-90EC Datasheet, PDF (33/48 Pages) SPANSION – 4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory

DATA SHEET
AC CHARACTERISTICS
Erase/Program Operations
Parameter
JEDEC
Std Description
t_AVAV
t_WC Write Cycle Time (Note 1)
Min
t_AVWL
t_AS Address Setup Time
Min
t_WLAX
t_AH Address Hold Time
Min
t_DVWH
t_DS Data Setup Time
Min
t_WHDX
t_DH Data Hold Time
Min
t_OES Output Enable Setup Time
Min
t_GHWL
t_GHWL
Read Recovery Time Before Write
(OE# High to WE# Low)
Min
t_ELWL
t_WHEH
t_WLWH
t_WHWL
t_WHWH1
t_CS
t_CH
t_WP
t_WPH
CE# Setup Time
CE# Hold Time
Write Pulse Width
Write Pulse Width High
t_WHWH1 Programming Operation (Note 2)
Min
Min
Min
Min
Byte Typ
Word Typ
t_WHWH2 t_WHWH2 Sector Erase Operation (Note 2)
Typ
t_VCS V_CC Setup Time (Note 1)
Min
t_RB Recovery Time from RY/BY#
Min
t_BUSY Program/Erase Valid to RY/BY# Delay
Max
Notes:
1. Not 100% tested.
2. See the “Erase And Programming Performance” section for more information.
Speed Options
55R
70
90
120
55
70
90
120
0
45
45
45
50
35
35
45
50
0
0
0
0
0
35
35
35
50
30
9
11
0.7
50
0
90
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
sec
µs
ns
ns
December 4, 2006 21523D4
Am29LV400B
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