UPD6464A データシートの表示（PDF） - NEC => Renesas Technology

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UPD6464A

ON-SCREEN CHARACTER DISPLAY CMOS LSI FOR 12-LINE, 24-COLUMN DECK-TYPE VCR

NEC => Renesas Technology 

DATA 3

CLK 1

CS 2

Data input

shift register

Data buffer register

Instruction decoder

External/

internal

register

NTSC/

PAL/

PAL-M/

SECAM/

PAL-NNote

register

Character size

register

Horizontal size

counter

Horizontal address

register

Write address

counter

Horizontal

position counter

Horizontal

address counter

OSCIN

6

LOSCOSCOUT

5

COSCIN COSCOUT

Vertical address

register

Vertical size

counter

Vertical position

counter

Vertical address

counter

Control signal

Video RAM

Character

data

7 bits (µ PD6464A)

8 bits (µ PD6465)

×

288 words

Blink data

1 bit

×

288 words

Character generator

ROM

12 × 18 bits

×

128 words (µPD6464A)

256 words (µPD6465)

4 VDD

8 GND

19 TEST

7 PCL

17

CSYIN

15 16

HSYO VSYO

Note µPD6464A only

10 9

11 12

FSCO FSCI XOSO XOSI

Output controller

13 14 20 21 22 23 24

VC VBLK

VBSO

VCNT VBSI

NRE SECAM

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