FLASH
AS29F040
Austin Semiconductor, Inc.
FIGURE 13: AC CHARACTERISTICS, DQ2 vs. DQ6
NOTES: Both DQ6 and DQ2 toggle with OE\ or CE\. See the text on DQ6 and DQ2 in section “Write Operation Status” for more information.
AC CHARACTERISTICS: Erase and Program Operations (Alternate
CE\ Controlled Writes)
SYMBOL
JEDEC Std
SPEED OPTIONS
PARAMETER
-55
-70
90
-120 -150 UNITS
1
MIN
MIN
MIN
MIN
MIN
MIN
t
t
55
70
90
120
150
ns
ns
ns
ns
ns
ns
Write Cycle Time
AVAV
WC
0
45
45
0
Address Setup Time
Address Hold Time
Data Setup Time
t
t
t
AVWL
WLAX
AS
AH
DS
DH
t
40
25
45
30
50
50
50
50
t
t
DVWH
WHDX
Data Hold Time
t
t
0
Output Enable Setup Time
t
OES
Read Recover Time Before Write
(OE\ High to WE\ Low)
0
MIN
t
t
ns
GHWL
GHWL
0
0
CE\ Setup Time
MIN
t
t
ns
ns
ELWL
WHEH
WLWH
WHWL
CS
CE\ Hold Time
MIN
t
t
CH
Write Pulse Width
Write Pulse Width High
MIN
t
t
t
30
35
45
20
7
50
50
ns
WP
MIN
t
ns
WPH
2
TYP t
TYP t
MIN
t
WHWH1 WHWH1
µs
sec
µs
Byte Programming Operation
2
1
t
WHWH2 WHWH2
Sector Erase Operation
1
50
t
V
CC
Set Up Time
VCS
NOTES:
1. Not 100% tested.
2. See the “Erase and Programming Performance” section for more information.
AS29F040
Rev. 2.2 09/07
19
AustinSemiconductor,Inc.reservestherighttochangeproductsorspecificationswithoutnotice.
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