HD6432621 Hitachi, HD6432621 Datasheet - Page 705

• Manufacturer Part Number: HD6432621
• Description: (HD64F262x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

Table 19-16 AC Characteristics in Auto-Program 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
Address setup time
Address hold time
Memory write time
Write setup time
Write end setup time
WE rise time
WE fall time
I/O5–I/O0
A18–A0
FWE
I/O7
I/O6
WE
CE
OE
V
t
pns
SS
= 0 V, T
t
ces
Figure 19-22 Auto-Program Mode Timing Waveforms
t
f
t
ds
t
wep
H'40
a
= 25°C ±5°C)
t
t
ceh
r
t
dh
t
nxtc
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
nxtc
ceh
ces
dh
ds
wep
wsts
spa
as
ah
write
pns
pnh
r
f
t
as
Address
stable
t
1 to 128 bytes
ah
Data transfer
Min
20
0
0
50
50
70
1
—
0
60
1
100
100
—
—
t
wsts
t
write
t
spa
Max
—
—
—
—
—
—
—
150
—
—
3000
—
—
30
30
H'00
CC
Write operation end decision signal
Write normal end decision signal
t
pnh
= 3.3 V ±0.3 V,
t
nxtc
Unit
µs
ns
ns
ns
ns
ns
ms
ns
ns
ns
ms
ns
ns
ns
ns
661