HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 189
HD6433044
Manufacturer Part Number
HD6433044
Description
(HD64 Series) Hitachi Single-Chip Microcomputer
Manufacturer
Hitachi Semiconductor
Datasheet
1.HD6433044.pdf
(867 pages)
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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
PSRAM
RD
OE RFSH
/
RFSH
Figure 7-17 Interconnection to Pseudo-Static RAM with OE/RFSH Signal (Example)
175
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