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LC74789 Datasheet, PDF (1/23 Pages) Sanyo Semicon Device – On-Screen Display Controller | |||
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Ordering number : EN5732A
CMOS IC
LC74789, 74789M, 74789JM
On-Screen Display Controller
Overview
The LC74789, LC74789M, and LC74789JM are on-
screen display controller CMOS ICs that display
characters and patterns on the TV screen under
microprocessor control. These ICs support 12 Ã 18 dot
characters and can display 12 lines by 24 characters of
text.
Features
⢠Display format: 24 characters by 12 rows (Up to 288
characters)
⢠Character format: 12 (horizontal) à 18 (vertical) dots
⢠Character sizes: Three sizes each in the horizontal and
vertical directions
⢠Characters in font: 256 (254 characters, one spacing
character, and one transparent spacing character)
⢠Initial display positions: 64 horizontal positions and 64
vertical positions
⢠Blinking: Specifiable in character units
⢠Blinking types: Two periods supported: About 1.0
second and about 0.5 second
⢠Blanking: Over the whole font (12 à 18 dots)
⢠Background color: 8 colors (internal synchronization
mode): 2fSC and 4fSC
⢠Line background color
â Can be set for 3 lines
â Line background color: 8 colors (internal
synchronization mode): 2fSC and 4fSC
⢠External control input: 8-bit serial input format
⢠On-chip sync separator circuit
⢠Video outputs: NTSC, PAL, PAL-N, PAL-M, NTSC
4.43, and PAL60 format composite video outputs
⢠Package
â 24-pin plastic DIP-24S (300 mil)
â 24-pin plastic MFP-24 (375 mil)
â 24-pin plastic MFP-24S (300 mil)
Package Dimensions
unit: mm
3067-DIP24S
[LC74789]
unit: mm
3045B-MFP24
[LC74789M]
unit: mm
3112-MFP24S
[LC74789JM]
SANYO: DIP24S
SANYO: MFP24
SANYO: MFP24S
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
30698HA (OT) No. 5732-1/23
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