D12320VF25IV Datasheet, PDF (865/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Table 19.37 AC Characteristics in Memory Read Mode
Conditions: V_CC = 3.3 V ±0.3 V, V_SS = 0 V, T_a = 25°C ±5°C
Item
Symbol
Min
Command write cycle
tnxtc
20
CE hold time
tceh
0
CE setup time
tces
0
Data hold time
tdh
50
Data setup time
tds
50
Write pulse width
twep
70
WE rise time
tr
—
WE fall time
tf
—
Max
—
—
—
—
—
—
30
30
Section 19 ROM
Unit
µs
ns
ns
ns
ns
ns
ns
ns
A18 to A₀
Command write
Memory read mode
Address stable
CE
OE
WE
Data
t_wep t_ceh
t_nxtc
t_ces
t_f
t_r
H'00
t_dh
t_ds
Data
Note: Data is latched at the rising edge of WE.
Figure 19.48 Memory Read Mode Timing Waveforms after Command Write
Rev.6.00 Sep. 27, 2007 Page 833 of 1268
REJ09B0220-0600