HD6433044 Datasheet, PDF (189/867 Pages) Hitachi Semiconductor – Hitachi Single-Chip Microcomputer

Example: Pseudo-static RAM may have separate OE and RFSH pins, or these may be combined
into a single OE/RFSH pin. Figure 7-17 shows an example of a circuit for generating an
OE/RFSH signal. Check the device characteristics carefully, and design a circuit that fits them.
Figure 7-18 shows a setup procedure to be followed by a program.
H8/3048 Series
RD
RFSH
PSRAM
OE / RFSH
Figure 7-17 Interconnection to Pseudo-Static RAM with OE/RFSH Signal (Example)
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