Ordering number : EN5833
CMOS IC
LC74798, 74798M
On-Screen Display Controller IC
Overview
The LC74798 and LC74798M are on-screen display
controller CMOS ICs that display characters and patterns
on the TV screen under microprocessor control. These ICs
include a built-in PDC/VPS/UDT interface circuit.
Package Dimensions
unit: mm
3193-DIP30SD
[LC74798]
Features
鈥?Display format: 24 characters by 12 rows (Up to 288
characters)
鈥?Character format: 12 (horizontal)
脳
18 (vertical) dots
鈥?Character sizes: Three sizes each in the horizontal and
vertical directions
鈥?Characters in font: 128
鈥?Initial display positions: 64 horizontal positions and
64 vertical positions
鈥?Blinking: Specifiable in character units
鈥?Blinking types: Two periods supported: 1.0 second and
0.5 second
鈥?Blanking: Over the whole font (12
脳
18 dots)
鈥?Background color
鈥?8 colors (internal synchronization mode): 4fSC
鈥?6 colors (internal synchronization mode): 2fSC
鈥?Blue background only: NTSC
鈥?Line background color
鈥?Three lines can be set up.
鈥?8 line background colors (in internal synchronization
mode): 4fSC
鈥?6 line background colors (in internal synchronization
mode): 2fSC
鈥?External control input: 8-bit serial input format
鈥?On-chip sync separator and AFC circuits
鈥?On-chip PDC/VPS/UDT interface circuit
鈥?Video outputs: PAL and NTSC format composite video
outputs
鈥?Package: DIP30SD (400 mil)
MFP30S (375 mil)
SANYO: DIP30SD
unit: mm
3216-MFP30S
[LC74798M]
SANYO: MFP30S
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
51898RM (OT) No. 5833-1/32