SH7055S Datasheet, PDF (872/1002 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7000 Series

FWE
A19-A0
t_pns t_ces
Address stable
t_ceh t_nxtc
t_pnh
t_nxtc
I/O7
I/O6
I/O5-I/O0
t_wep
tf
tr
t_ds
t_dh
H'40 or H'45
t_as
t_ah
t_wsts t_spa
Data transfer
1 byte to 128 bytes
t_write
1st-byte
Din
128th-byte
Din
Programming end
identification signal
Programming normal end
confirmation signal
H'00
Figure 22.36 Timing in Auto-Program Mode
Table 22.26 AC Characteristics in Auto-Erase 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
20
nxtc
CE hold time
t_ceh
0
CE setup time
t_ces
0
Data hold time
t_dh
50
Data setup time
t_ds
50
Programming pulse width t
70
wep
Status polling start time
t_ests
1
Status polling access time t_spa
Memory erase time
t_erase
100
Erase setup time
t_ens
100
Erase end setup time
t_enh
100
WE rise time
t_r
WE fall time
t_f
Max
150
40000
30
30
Unit
µs
ns
ns
ns
ns
ns
ms
ns
ms
ns
ns
ns
ns
Note
Rev.2.0, 07/03, page 834 of 960