SH7050 Datasheet, PDF (654/841 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH RISC engine Family/

Section 19 ROM (256 kB Version)
Table 19.17 AC Characteristics in Status Read Mode
Conditions: V_CC = 5.0 V ±10%, V_SS = 0 V, T_a = 25°C ±5°C
Item
Read time after command write
CE hold time
CE setup time
Data hold time
Data setup time
Write pulse width
OE output delay time
Disable delay time
CE output delay time
WE rise time
WE fall time
Symbol
t_std
t_ceh
t_ces
t_dh
t
ds
t
wep
t_oe
t_df
t_ce
t_r
t
f
Min
20
0
0
50
50
70
Max
150
100
150
30
30
Unit
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes
A16–A0
CE
OE
WE
I/O7–I/O0
tces
tceh tnxtc tces
tceh tnxtc
twep
tf
tr
twep
tf
tr
tce
toe
tds
tdh
H'71
tds
tdh
H'71
Note: I/O2 and I/O3 are undefined.
Figure 19.20 Status Read Mode Timing Waveforms
tnxtc
tdf
Rev. 5.00 Jan 06, 2006 page 634 of 818
REJ09B0273-0500