HD64F3437TF16 Datasheet, PDF (84/752 Pages) Hitachi Semiconductor – 12 V must not be applied to the S-mask model (single-power-supply specification), as this may permanently damage the device.

ø
Address bus
AS
RD: High
WR
Data bus
T₁ state
Write cycle
T₂ state
T₃ state
Address
Write data
Figure 2.17 (b) External Device Access Timing (Write)
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