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Table 20-15 AC Characteristics in Auto-Program Mode (Conditions: V
V
= 0 V, T
SS
Item
Command write cycle
CE hold time
CE setup time
Data hold time
Data setup time
Write pulse width
Status polling start time
Status polling access time
Address setup time
Address hold time
Memory write time
Write setup time
Write end setup time
WE rise time
WE fall time
FWE
A18–A0
t
t
pns
ces
CE
OE
t
f
WE
I/O7
I/O6
I/O5–I/O0
Figure 20-22 Auto-Program Mode Timing Waveforms
= 25°C ±5°C)
a
Symbol
t
nxtc
t
ceh
t
ces
t
dh
t
ds
t
wep
t
wsts
t
spa
t
as
t
ah
t
write
t
pns
t
pnh
t
r
t
f
Address
stable
t
t
ceh
nxtc
t
wep
t
t
r
as
t
t
ds
dh
H'40
Min
20
0
0
50
50
70
1
—
0
60
1
100
100
—
—
t
t
ah
wsts
Data transfer
t
write
1 to 128 bytes
= 5.0 V ±0.5 V,
CC
Max
Unit
—
µs
—
ns
—
ns
—
ns
—
ns
—
ns
—
ms
150
ns
—
ns
—
ns
3000
ms
—
ns
—
ns
30
ns
30
ns
t
pnh
t
nxtc
t
spa
Write operation end decision signal
Write normal end decision signal
H'00
703
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