LC74770M Datasheet, PDF (1/11 Pages) Sanyo Semicon Device – On-Screen Display Controller LSI

Ordering number : EN4248A
CMOS LSI
LC74770M
On-Screen Display Controller LSI
Overview
The LC74770M is a CMOS LSI that implements on-
screen display, a function that displays characters and
patterns on display screens such as camcorder viewfinder
screens under microprocessor control. This LSI displays
12-dot by 18-dot characters.
Package Dimensions
unit: mm
3112-MFP24S
[LC74770M]
Features
• Display format: 24 characters by 12 rows (up to
288 characters)
• Characters displayed: Up to 288 characters
• Character format: 12 (horizontal) × 18 (vertical)
• Characters in font: 128
• Character sizes: Normal and double
• Initial display positions: 64 horizontal positions and
64 vertical positions
• Reverse video function: Characters can be displayed in
reverse video specified in units of individual characters.
• Blinking types: In character units in one of two periods,
1.0 second and 0.5 second, with a 50% duty.
• Outputs: Character and blanking data, with two output
systems for each
• External control input: 8-bit serial input format
• General-purpose output port: 4 bits (controlled from the
serial input data)
Pin Assignment
SANYO: MFP24S
Top view
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