D12320VF25V Datasheet, PDF (653/1146 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

AC Characteristics
Table 17.20 AC Characteristics in Auto-Erase 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
Status polling start time
tests
1
Status polling access time
tspa
—
Memory erase time
terase
100
Erase setup time
tens
100
Erase end setup time
tenh
100
WE rise time
tr
—
WE fall time
tf
—
Max
—
—
—
—
—
—
—
150
40000
—
—
30
30
Section 17 ROM
Unit
μs
ns
ns
ns
ns
ns
ms
ns
ms
ns
ns
ns
ns
FWE
A₁₈ to A₀
CE
OE
WE
I/O7
I/O6
I/O5 to I/O0
tens t_ces
tceh tnxtc
tenh
tnxtc
tf
twep _tr
tds
tdh
H'20
tests tspa
terase
Erase end identifi-
cation signal
Erase normal end
confirmation signal
H'20
H'00
Figure 17.27 Auto-Erase Mode Timing Waveforms
Rev.7.00 Feb. 14, 2007 page 619 of 1108
REJ09B0089-0700