SH7615 Datasheet, PDF (331/925 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH
RISC engine Family/SH7600 Series

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.
This LSI
A11
A2
CKIO
CKE
CSn
RAS
CAS/OE
RD/WR
D31
D16
DQMUU/WE3
DQMUL/WE2
D15
D0
DQMLU/WE1
DQMLL/WE0
256 k × 16-bit
synchronous
DRAM
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
Figure 7.17 Synchronous DRAM 32-bit Device Connection
Rev. 2.00, 03/05, page 293 of 884