6465 datasheet(20/54 Pages) RENESAS

tên linh kiện	6465

Giải thích chi tiết về linh kiện	MOS INTEGRATED CIRCUIT

PDF	54 Pages

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nhà sản xuất	RENESAS [Renesas Technology Corp]

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µPD6464A,6465

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Horizontal display start position control bits

The horizontal display start position can be set in 12-dot units and 32 steps, 16 clocks after the rising of the horizontal

synchronization signal (Hsync) (16/fOSC (MHz)).

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Vertical display start position control bits

The vertical display start position can be set in 9-line units and 32 steps, from the rising of the vertical

synchronization signal (Vsync).

Display area (12 lines

× 24 columns)

Horizontal synchronization signal (Hsync)

Vertical synchronization signal (Vsync)

A: 9H (line)

× (24V4 + 23V3 + 22V2 + 21V1 + 20V0)

× (24H4 + 23H3 + 22H2 + 21H1 + 20H0) +

fOSC (MHz)

Remark

fOSC: LC oscillation frequency (Dot Clock frequency)

Hsync and Vsync, which serve as references, are as follows:

Internal video signal mode : Hsync and Vsync are generated by internal circuit.

External video signal mode : Hsync and Vsync are generated from composite synchronization signal, input

to CSYN pin (pin 17), by sync. signal separation circuit.

6465 bảng dữ liệu(PDF) 20 Page - Renesas Technology Corp