Figure 4.16-19 Example Of Connection Between Mb91F109 And Two 8-Bit Output Drams (16-Bit Data Bus) - Fujitsu MB91F109 FR30 Hardware Manual

16-bit data bus (using 2 DRAMs)
Figure 4.16-19 Example of Connection between MB91F109 and Two 8-Bit Output DRAMs (16-Bit Data
COLUMN Address A08 A07 A06 A05 A04 A03 A02 A01 A00
ROW Address
External pin
2 DRAMs
4.16 Relationship between Data Bus Widths and Control Signals
This LSI
A16 A15 A14 A13 A12 A11 A10 A09 A08
A08 A07 A06 A05 A04 A03 A02 A01 A00
A07 A06 A05 A04 A03 A02 A01 A00
8
A07 A06 A05 A04 A03 A02 A01 A00
8
Bus)
RAS,CASL,WE (RAS,CAS,WEL)
D07-00 D31-24
RAS,CASH,WE (RAS,CAS,WEH)
D07-00 D23-16
( ): Values in parentheses are for 1CAS/2WE.
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