AS29F400
Preliminary information
®
AC parameters — write cycle
WE controlled
-55
-70
-90
-120
-150
JEDEC
Symbol
Std Symbol Parameter
Min Max Min Max Min Max Min Max Min Max Unit
t
t
t
t
t
t
t
t
t
t
t
Write cycle time
55
0
-
-
-
-
-
-
70
0
-
-
-
-
-
-
90
0
-
-
-
-
-
-
120
0
-
-
-
-
-
-
150
0
-
-
-
-
-
-
ns
ns
ns
ns
ns
ns
AVAV
WC
AS
Address setup time
Address hold time
Data setup time
AVWL
WLAX
DVWH
WHDX
40
25
0
45
30
0
45
45
0
50
50
0
50
50
0
AH
DS
Data hold time
DH
OES
Output enable setup time
0
0
0
0
0
Output enable hold time:
Toggle and data polling
t
10
-
10
-
10
-
10
-
10
-
ns
OEH
t
t
t
t
t
t
t
t
t
RESET pin low to read mode
RESET pulse
20
500
0
-
-
-
-
-
-
-
-
-
20
500
0
-
-
-
-
-
-
-
-
-
20
500
0
-
-
-
-
-
-
-
-
-
20
500
0
-
-
-
-
-
-
-
-
-
20
500
0
-
-
-
-
-
-
-
-
-
µs
ns
ns
ns
ns
ns
ns
µs
sec
READY
RP
t
t
t
t
t
t
t
Read recover time before write
CE setup time
GHWL
GHWL
CS
0
0
0
0
0
ELWL
CE hold time
0
0
0
0
0
WHEH
WLWH
WHWL
WHWH1
WHWH2
CH
Write pulse width
Write pulse width high
Programming time
Erase time
35
20
15
0.3
35
20
15
0.3
45
20
15
0.3
50
20
15
0.3
55
20
15
0.3
WP
WPH
WHWH1
WHWH2
Write waveform
WE controlled
3rd bus cycle
DATA polling
t
t
WC
AS
Program address
5555h
Program address
Addresses
CE
t
AH
t
CH
t
; t
GHWL OES
OE
t
WP
t
WHWH1 or 2
WE
t
t
CS
WPH
t
DH
Program
data
A0h
DQ7
DOUT
DATA
t
DS
V
SS
13
ALSC [ ALLIANCE SEMICONDUCTOR CORPORATION ]
