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
鈥?Display format: 24 characters by 12 rows (up to
288 characters)
鈥?Characters displayed: Up to 288 characters
鈥?Character format: 12 (horizontal)
脳
18 (vertical)
鈥?Characters in font: 128
鈥?Character sizes: Normal and double
鈥?Initial display positions: 64 horizontal positions and
64 vertical positions
鈥?Reverse video function: Characters can be displayed in
reverse video specified in units of individual characters.
鈥?Blinking types: In character units in one of two periods,
1.0 second and 0.5 second, with a 50% duty.
鈥?Outputs: Character and blanking data, with two output
systems for each
鈥?External control input: 8-bit serial input format
鈥?General-purpose output port: 4 bits (controlled from the
serial input data)
Pin Assignment
SANYO: MFP24S
Top view
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-0005 JAPAN
31596HA (OT) No. 4248-1/11