HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 705

• Manufacturer Part Number: HD6433044
• Description: (HD64 Series) Hitachi Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

ø
A
AS
CS3 (RAS)
RD (CAS)
HWR (UW),
LWR (LW)
RFSH
ø
CS (RAS)
RD (CAS)
RFSH
9
to A
3
1
Figure 21-11 DRAM Bus Timing (Refresh Cycle): Three-State Access
Figure 21-12 DRAM Bus Timing (Self-Refresh Mode)
T
1
t
t
ASD
ASD
t
t
CSR
CSR
t
t
RAD2
RAD2
— 2WE Mode —
— 2WE Mode —
t
t
CSR
CSR
T
2
697
T
3
t
t
RAD3
RAD3
t
t
SD
SD