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UPD6464A Datasheet(PDF) 2 Page - NEC

Part No. UPD6464A
Description  ON-SCREEN CHARACTER DISPLAY CMOS LSI FOR 12-LINE, 24-COLUMN DECK-TYPE VCR
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Maker  NEC [NEC]
Homepage  http://www.nec.com/
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UPD6464A Datasheet(HTML) 2 Page - NEC

 
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background image
Note
µPD6464A only
3
1
2
6
5
17
15
13
14
23
24
4
8
19
7
VDD
GND
TEST
PCL
VBSI
VCNT
VBLK
VC
XOSI
XOSO
HSYO
CSYIN
OSCOUT
OSCIN
DATA
CLK
CS
Data input
shift register
Data buffer register
Instruction decoder
Control signal
External/
internal
register
NTSC/
PAL/
PAL-M/
SECAM/
PAL-N
Note
register
Character size
register
Horizontal address
register
Write address
counter
Video RAM
Horizontal size
counter
Horizontal
position counter
Horizontal
address counter
Character
data
7 bits ( PD6464A)
8 bits ( PD6465)
×
288 words
Blink data
1 bit
×
288 words
Vertical address
register
Vertical size
counter
Vertical position
counter
Vertical address
counter
Output controller
Character generator
ROM
12
× 18 bits
×
128 words ( PD6464A)
256 words ( PD6465)
OSC
L
OSCIN
C
OSCOUT
C
16
VSYO
10
9
11
12
FSCI
FSCO
20
NRE
21
VBSO
22
SECAM
µ
µ
µ
µ


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