h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 747

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Table 20.17 AC Characteristics in Auto-Erase Mode
Conditions: V
Item
Command write cycle
CE hold time
CE setup time
Data hold time
Data setup time
Write pulse width
Status polling start time
Status polling access time
Memory erase time
Erase setup time
Erase end setup time
WE rise time
WE fall time
I/O5–I/O0
A18–A0
FWE
I/O7
I/O6
WE
OE
CE
CC
= 5.0 V ±0.5 V, V
t
ens
t
Figure 20.23 Auto-Erase Mode Timing Waveforms
ces
t
f
t
ds
t
wep
H'20
t
ceh
t
r
SS
t
dh
= 0 V, T
t
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
nxtc
ceh
ces
dh
ds
wep
ests
spa
erase
ens
enh
r
f
nxtc
a
= 25°C ±5°C
H'20
Min
20
0
0
50
50
70
1
—
100
100
100
—
—
t
ests
decision signal
decision signal
Rev. 5.00 Sep 22, 2005 page 721 of 1136
Erase normal
Erase end
t
erase
end
t
spa
Max
—
—
—
—
—
—
—
150
40000
—
—
30
30
H'00
t
enh
REJ09B0257-0500
Section 20 ROM
t
nxtc
Unit
µs
ns
ns
ns
ns
ns
ms
ns
ms
ns
ns
ns
ns