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LC75757W

Features: • Key input from up to 25 keys (Key scans are only performed when keys are pressed.)• 123 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...

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SeekIC No. : 004392110 Detail

LC75757W: Features: • Key input from up to 25 keys (Key scans are only performed when keys are pressed.)• 123 segment outputs.• Noise reduction circuits are built into the output drivers....

LC75757W Data Sheet

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Part Number:
LC75757W
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 25 keys (Key scans are only performed when keys are pressed.)
• 123 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 to G3
0.3 to VFL + 0.3
V
VOUT2 OSCO, KS1 toKS5 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 to G3
60
mA
IOUT3 KS1 to KS5
1
mA
Allowable powerdissipation Pdmax Ta = 85(LC75757E)
400
mW
Ta = 85(LC75757W)
300
mW
Operating temperature Topr
40 to +85
Storage temperature Tstg
50 to +150





Description

The LC75757E and LC75757W are 1/3 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 123 segments. It also includes a key scan circuit and can support input from up to 25 keys and can thus reduce the number of lines to the front panel in application systems






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