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LC75742E

Features: • Key input from up to 30 keys(Key scans are only performed when keys are pressed.)• 82 segment outputs.• Noise reduction circuits are built into the output drivers.• Serial data I/O supports CCB format communication with the system controller.• Dimmer and s...

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SeekIC No. : 004392099 Detail

LC75742E: Features: • Key input from up to 30 keys(Key scans are only performed when keys are pressed.)• 82 segment outputs.• Noise reduction circuits are built into the output drivers.̶...

LC75742E Data Sheet

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Part Number:
LC75742E
Supply Ability:
5000

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

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Product Details

Description



Features:

• Key input from up to 30 keys
(Key scans are only performed when keys are pressed.)
• 82 segment outputs.
• Noise reduction circuits are built into the output drivers.
• Serial data I/O supports CCB format communication with the system controller.
• Dimmer and sleep mode can be controlled by serial data input.
• High generality since display data is displayed without the intervention of a decoder.
• All segments can be turned off with theBLK pin.




Pinout

Connection Diagram




Specifications

Parameter Symbol Conditions
Ratings
Unit
Maximum supply voltage VDDmax VDD
0.3 to +6.5
V
VFL max VFL
0.3 to +21.0
V
Input voltage VIN1 DI, CL, CE, BLK
0.3 to +6.5
V
VIN2 OSCI, KI1 to KI5
0.3 to VDD +0.3
V
Output voltage VOUT1 S1 to S41, G1, G2
0.3 to VFL + 0.3
V
VOUT2 OSCO, KS1 toKS6 0.3 to VDD +0.3
V
VOUT3 DO
0.3 to +6.5
V
Output current IOUT1 S1 to S41
6
mA
IOUT2 G1, G2
60
mA
IOUT3 KS1 to KS6
1
mA
Allowable powerdissipation Pdmax Ta = 85(LC75742E)
400
mW
Ta = 85(LC75742W)
300
mW
Operating temperature Topr
40 to +85
Storage temperature Tstg
50 to +150





Description

The LC75742E and LC75742W are 1/2 duty VFD drivers that can be used for electronic tuning frequency display and other applications under the control of a microcontroller. These products can directly drive VFDs with up to 82 segments. It also includes a key scan circuit and can support input from up to 30 keys and can thus reduce the number of lines to the front panel in application systems.






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