Renesas H8S/2318 series, Hardware Manual

Page: 790 / 1121

Rev. 5.00, 12/03, page 760 of 1088
Table 17-68 AC Characteristics Auto-PROM Mode
Condition: V
CC
= 3.3 V ± 0.3 V, V
SS
= 0 V, T
a
= 25˚C ± 5˚C
Code Symbol Min Max Unit
Command write cycle t
nxtc
20 —
µ
s
CE
hold time t
ceh
0 — ns
CE
setup time t
ces
0 — ns
Data hold time t
dh
50 — ns
Data setup time t
ds
50 — ns
Programming pulse width t
wep
70 — ns
Status polling start time t
wsts
1 — ms
Status polling access time t
spa
— 150 ns
Address setup time t
as
0 — ns
Address hold time t
ah
60 — ns
Memory programming time t
write
1 3000 ms
WE
rise time t
r
— 30 ns
WE
fall time t
f
— 30 ns
Address Stable
CE
A18-0
I/O5-0
I/O6
I/O7
OE
WE
t
as
t
ah
t
dh
t
ds
tf tr
t
wep
t
wsts
t
write
t
spa
t
nxtc
t
nxtc
t
ceh
t
ces
Identification Signal of
Programming Operation End
Data Transfer
1 byte to 128 bytes
Identification Signal of
Programming Operation
Successful End
H'40 or
H'45
H'00
1st byte
Din
128th byte
Din
Figure 17-92 Timing in Auto-PROM Mode