D12320VF25V Datasheet, PDF (818/1146 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 17 ROM
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
Command write cycle
CE hold time
CE setup time
Data hold time
Data setup time
Programming pulse width
Status polling start time
Status polling access time
Address setup time
Address hold time
Memory programming time
WE rise time
WE fall time
Symbol
tnxtc
tceh
tces
tdh
tds
twep
twsts
tspa
tas
tah
twrite
tr
tf
Min
20
0
0
50
50
70
1
—
0
60
1
—
—
Max
Unit
—
μs
—
ns
—
ns
—
ns
—
ns
—
ns
—
ms
150
ns
—
ns
—
ns
3000
ms
30
ns
30
ns
A18-0
CE
OE
WE
I/O7
I/O6
I/O5-0
Address Stable
t_ces
t_ceh t_nxtc
t_nxtc
t_wep
tf
tr
t_as
t_ds
t_dh
t_ah
Data Transfer
1 byte to 128 bytes
t_wsts t_spa
t_write
H'40 or
H'45
1st byte
Din
128th byte
Din
Figure 17.92 Timing in Auto-PROM Mode
Identification Signal of
Programming Operation End
Identification Signal of
Programming Operation
Successful End
H'00
Rev.7.00 Feb. 14, 2007 page 784 of 1108
REJ09B0089-0700