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LC75854E

Features: • Key input function for up to 30 keys (A key scan is performed only when a key is pressed.)• 1/4 duty - 1/2 bias and 1/4 duty - 1/3 bias drive schemes can be controlled from serial data (up to 164 segments).• Sleep mode and all segments off functions that are controlle...

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SeekIC No. : 004392157 Detail

LC75854E: Features: • Key input function for up to 30 keys (A key scan is performed only when a key is pressed.)• 1/4 duty - 1/2 bias and 1/4 duty - 1/3 bias drive schemes can be controlled from s...

LC75854E Data Sheet

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Part Number:
LC75854E
Supply Ability:
5000

Price Break

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

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Product Details

Description



Features:

• Key input function for up to 30 keys (A key scan is performed only when a key is pressed.)
• 1/4 duty - 1/2 bias and 1/4 duty - 1/3 bias drive schemes can be controlled from serial data (up to 164 segments).
• Sleep mode and all segments off functions that are controlled from serial data
• Segment output port/general-purpose output port function switching that is controlled from serial data
• Serial data I/O supports CCB format communication with the system controller.
• Direct display of display data without the use of a decoder provides high generality.
• Provision of an on-chip voltage-detection type reset circuit prevents incorrect displays.
• RC oscillator circuit


Pinout

Connection Diagram


Specifications

Parameter Symbol Conditions
Ratings
 Unit
Maximum supply voltage VDDmax VDD
0.3 to +7.0
V
Input voltage VIN1 CE, CL, DI
0.3 to +7.0
V
VIN2 OSC, KI1 to KI5, TEST, VDD1, VDD2
0.3 to VDD + 0.3
V
Output voltage VOUT1 DO
0.3 to +7.0
V
VOUT2 OSC, S1 to S41, COM1 to COM4, KS1 to KS6, P1 to P4
0.3 to VDD + 0.3
V
Output current IOUT1 S1 to S41
300
A
IOUT2 COM1 to COM4
3
mA
IOUT3 KS1 to KS6
1
mA
IOUT4 P1 to P4
5
mA
Allowable power dissipation Pdmax Ta=85°C

200
mW
Operating temperature Topr
40 to +85
Storage temperature Tstg
50 to +125



Description

The LC75854E and LC75854W are 1/4 duty LCD display drivers that can directly drive up to 164 segments and can control up to four general-purpose output ports. These products also incorporate a key scan circuit that accepts input from up to 30 keys to reduce printed circuit board wiring.


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