HD6432621 Hitachi, HD6432621 Datasheet - Page 782

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

Item
BREQ setup time
BACK delay time
Bus-floating time
BREQO delay time
738
ø
A23 to A0
AS
RD
(read)
D15 to D0
(read)
HWR, LWR
(write)
D15 to D0
(write)
Figure 22-6 Basic Bus Timing (Two-State Access)
Symbol
t
t
t
t
BRQS
BACD
BZD
BRQOD
t
AD
Min
30
—
—
—
t
t
t
AS
AS
AS
T
1
t
t
t
WRD2
RSD1
WDD
t
ASD
t
ACC3
t
Max
—
15
50
25
WSW1
t
ACC2
t
ASD
T
2
t
WRD2
t
t
RDS
t
AH
WDH
t
AH
Unit
ns
ns
ns
ns
t
RDH
t
RSD2
Test Conditions
Figure 22-11
Figure 22-12