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LC74751

Features: • Display format: 24 characters by 12 rows• Characters displayed: Up to 288 characters• Display control ROM (line ROM): ROM for 64 lines (Control in line units: lines consisting of 24 characters)• Display RAM: 176 characters (Used for the specification of user-def...

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SeekIC No. : 004391975 Detail

LC74751: Features: • Display format: 24 characters by 12 rows• Characters displayed: Up to 288 characters• Display control ROM (line ROM): ROM for 64 lines (Control in line units: lines con...

LC74751 Data Sheet

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Part Number:
LC74751
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/12/6

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Product Details

Description



Features:

• Display format: 24 characters by 12 rows
• Characters displayed: Up to 288 characters
• Display control ROM (line ROM): ROM for 64 lines (Control in line units: lines consisting of 24 characters)
• Display RAM: 176 characters (Used for the specification of user-defined characters.)
• Character format: 12 (horizontal) ´ 18 (vertical) dots
• Characters in font: 128
• Character sizes: Four sizes each in the horizontal and vertical directions
• Initial display positions: 64 horizontal positions and 64 vertical positions
• Blinking: Specifiable in character units
• Blinking types:
    - Two periods supported: 1.0 second and 0.5 second
    - Three duty types supported: 25%, 50%, and 75%
• Blanking: Over the whole font (12 ´ 18 dots)
• Background color
    - 8 background colors (in internal synchronization mode): 4fsc (NTSC/PAL/PAL-M/PAL-N)
    - 4 background colors (in internal synchronization mode): 2fsc (NTSC)
    - Single background color (blue) (in internal synchronization mode): 2fsc (PAL/PAL-M/PAL-N)
• External control input: Serial data input
• Synchronizing signals: Supports switching between internal and external synchronizing signals.
• On-chip sync separator circuit
• Video output: Composite video output in the NTSC, PAL, PAL-M, or PAL-N format
• Superimpose function: Superimposes the character output on the composite video output.


Pinout

Connection Diagram


Specifications

Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage
VDD
VDD1 and VDD2
VSS0.3 to VSS+7.0
V
Input voltage
VIN
All input pins
VSS0.3 to VDD+0.3
V
Output voltage
VOUT
  
VSS0.3 to VDD+0.3
V
Allowable power dissipation
Pd max
Ta = 25°C
300
mW
Operating temperature
Topr
30 to +70
°C
Storage temperature
Tstg
40 to +125
°C



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