HD6417615 Hitachi Semiconductor, HD6417615 Datasheet - Page 306

• Manufacturer Part Number: HD6417615
• Description: Hardware Manual
• Manufacturer: Hitachi Semiconductor

used. Figure 7.17 shows an example in which a 32-bit connection uses a 256k 16 bit
synchronous DRAM. Figure 7.18 shows an example with a 16-bit connection.
DQMUU/WE3
DQMUL/WE2
DQMLU/WE1
Chip
DQMLL/WE0
Figure 7.17 Synchronous DRAM 32-bit Device Connection
CAS/OE
RD/WR
CKIO
CKE
RAS
CSn
D31
D16
D15
A11
D0
A2
256 k
synchronous
A9
A0
CLK
CKE
CS
RAS
CAS
WE
I/O15
I/O0
DQMU
DQML
A9
A0
CLK
CKE
CS
RAS
CAS
WE
I/O15
I/O0
DQMU
DQML
DRAM
16-bit
289