HD6473887 Datasheet, PDF(410/523 Page) Renesas Technology Corp – Hitachi Single-Chip Microcomputer

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HD6473887 Datasheet, PDF (410/523 Pages) Renesas Technology Corp – Hitachi Single-Chip Microcomputer

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VIH

UD

VIL

tUDL

tUDH

Figure 15-4 UD Pin Minimum Modulation Width Timing

tscyc

SCK1

VIH or VOH*

VIL or VOL*

tSCKf

tSCKL

tSOD

tSCKH

tSCKr

SO1

SI1

VOH*

VOL*

tSIS

tSIH

Note: * Output timing reference levels

Output high level

VOH = 1/2 VCC + 0.2 V

Output low level

VOL = 0.8 V

See figure 15-9 for the load conditions.

Figure 15-5 SCI1 Input/Output Timing

393

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