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UPD6461 Datasheet(PDF) 3 Page - NEC

Part No. UPD6461
Description  CMOS LSI CHIP FOR CAMCORDER ON-SCREEN CHARACTER DISPLAY 12 ROWS x 24 COLUMNS
Download  60 Pages
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Maker  NEC [NEC]
Homepage  http://www.nec.com/
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UPD6461 Datasheet(HTML) 3 Page - NEC

 
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Remark Signals in (
) are set by a mask option (RGB + RGB compatible blanking).
DATA
CLK
CS
CKOUT
OSCIN
OSCOUT
Hsync
Vsync
TEST
VDD
GND
PCL
Data input shift
register
Instruction decoder
Control signals
Character size
register
Horizontal address
register for
display position
Write address
counter
Video RAM
Char-
acter
data
8 bits
× 288
words
Color
data
3 bits
× 288
words
Blink
data
1 bit
× 288
words
Re-
verse
data
1 bit
× 288
words
Out-
put
speci-
fication
data
1 bit
× 288
words
Back-
ground
control
data
register
Display
control
data
register
Horizontal size
counter
Horizontal
position counter
Horizontal address
counter
Oscil-
lator
Vertical address
register for
display position
Character
generator ROM
12
× 18 bits
× 256 words
( PD6461)
/
× 128 words
( PD6462)
Synchro-
nization
protection
circuit
Vertical size
counter
Vertical position
counter
Vertical address
counter
VR
VG
VB VBLK VC1 BLK1 VC2 BLK2
Output controller
µ
µ
(BBLK)
(BBLK)
(RBLK)


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