SH7059 Datasheet, PDF (892/1042 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

25. ROM (SH7059)
A21-A0
CE
OE
WE _VIH
I/O7-I/O0
Address stable
t_ce
t_oe
Address stable
t_ce
t_oe
t_acc
t_acc
t_oh
t_df
t_oh ^tdf
Figure 25.35 CE/OE Clock Read
Table 25.25 AC Characteristics in Auto-Program Mode
Condition: V_CC = 3.3 V ± 0.3 V, V_SS = 0 V, T_a = 25°C ± 5°C
Code
Symbol
Min
Command write cycle
t_nxtc
20
CE hold time
CE setup time
t
0
ceh
t
0
ces
Data hold time
t
50
dh
Data setup time
t_ds
50
Programming pulse width
t_wep
70
Status polling start time
t
1
wsts
Status polling access time
t
spa
Address setup time
t
0
as
Address hold time
t_ah
60
Memory programming time
t_write
—
Max
150
t_P
Unit
µs
ns
ns
ns
ns
ns
ms
ns
ns
ns
ms
Programming setup time
t
100
ns
pns
Programming end setup time t
100
ns
pnh
WE rise time
t_r
30
ns
WE fall time
t_f
30
ns
Note
t_P: Refer to section 29.5, Flash
Memory Characteristics
Rev.3.00 Mar. 12, 2008 Page 802 of 948
REJ09B0177-0300