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LC74794

Features: • Display format: 24 characters by 12 rows (Up to 288 characters)• Character format: 12 (horizontal) ´ 18 (vertical) dots• Character sizes: Three sizes each in the horizontal andvertical directions• Characters in font: 128• Initial display positions: 6...

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SeekIC No. : 004392031 Detail

LC74794: Features: • Display format: 24 characters by 12 rows (Up to 288 characters)• Character format: 12 (horizontal) ´ 18 (vertical) dots• Character sizes: Three sizes each in the ...

LC74794 Data Sheet

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Part Number:
LC74794
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: 2025/1/11

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Product Details

Description



Features:

• Display format: 24 characters by 12 rows (Up to 288 characters)
• Character format: 12 (horizontal) ´ 18 (vertical) dots
• Character sizes: Three sizes each in the horizontal andvertical directions
• Characters in font: 128
• 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
• Blanking: Over the whole font (12 ´ 18 dots)
• Background color
- Background coloring: 8 colors (internal synchronization mode): 4fsc
- Background coloring: 6 colors (internal synchronization mode): 2fsc
- Blue background only: NTSC
• Line background color
- Can be set for 3 lines
- Line background coloring: 8 colors (internal synchronization mode): 4fsc
- Line background coloring: 6 colors (internal synchronization mode): 2fsc
• External control input: 8-bit serial input format
• On-chip sync separator and AFC circuits
• PDC/VPS/UDT interface circuit
• Composite video output in the PAL or NTSC format


Pinout

Connection Diagram


Specifications


Parameter
Rating
SYMBOL
 UNIT Conditions
Supply voltage
VSS 0.3 to VSS + 7.0
VDD
V
VDD1 and VDD2
Input voltage
VSS 0.3 to VDD + 0.3
VIN
V
All input pins
Output voltage
VSS 0.3 to VDD + 0.3
VOUT
V
DAV, DOUT, SEPOUT, and SYNCJDG
Allowable power dissipation
350
Pd max j
mW
Operating temperature

30 to +70
Topr
°C
  
 
Storage temperature
40 to +125
Tstg
°C
-



Description

The LC74794 and LC74794M are CMOS LSIs for onscreen display, a function that displays characters and patterns on a TV screen under microprocessor control. They feature a built-in PDC/VPS/UDT interface circuit. These LSIs support 12 ´ 18 dot characters and can display 12 lines by 24 characters of text.




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