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LC75834W

Features: • Supports both 1/4 duty 1/2 bias and 1/4 duty 1/3 bias LCD drive under serial data control. LC75834E, LC75834W: up to 136 segments LC75834JE: up to 120 segments (without the S9, S18, S27, S34 segment output pins from the LC75834E, LC75834W)• Serial data input supports CCB fo...

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SeekIC No. : 004392141 Detail

LC75834W: Features: • Supports both 1/4 duty 1/2 bias and 1/4 duty 1/3 bias LCD drive under serial data control. LC75834E, LC75834W: up to 136 segments LC75834JE: up to 120 segments (without the S9, S18...

LC75834W Data Sheet

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Part Number:
LC75834W
Supply Ability:
5000

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

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Product Details

Description



Features:

• Supports both 1/4 duty 1/2 bias and 1/4 duty 1/3 bias
   LCD drive under serial data control.
   LC75834E, LC75834W:    up to 136 segments
   LC75834JE:                      up to 120 segments
  (without the S9, S18, S27, S34 segment output pins from the LC75834E, LC75834W)
• Serial data input supports CCB format communication with the system controller.
• Serial data control of the power-saving mode based backup function and all the segments forced off function
• Serial data control of switching between the segment output port and the general-purpose output port functions
• High generality, since display data is displayed directly without decoder intervention.
• Independent VLCD for the LCD driver block (VLCD can be set to any voltage in the range 2.7 to 6.0 volts,regardless of the logic block power-supply voltage.)
• The INH pin can force the display to the off state.
• RC oscillator circuit


Pinout

Connection Diagram


Specifications

Parameter Symbol Conditions
Ratings
 Unit
Maximum supply voltage VDDmax VDD
0.3 to +7.0
V
VLCD max VLCD
0.3 to +7.0
V
Input voltage VIN1 CE, CL, DI, INH
0.3 to +7.0
V
VIN2 OSC
0.3 to VDD + 0.3
V
VIN3 VLCD 1, VLCD 2
0.3 to VLCD + 0.3
V
Output voltage VOUT1 OSC
0.3 to VDD + 0.3
V
VOUT2 S1 to S34, COM1 to COM4, P1 to P8
0.3 to VLCD + 0.3
V
Output current IOUT1 S1 to S34
300
A
IOUT2 COM1, COM4
3
mA
IOUT3 P1 to P8
5
mA
Allowable power dissipation Pdmax Ta85°C

150
mW
Operating temperature Topr
40 to +85
Storage temperature Tstg
50 to +125



Description

The LC75834E, LC75834W, and LC75834JE are 1/4 duty general-purpose LCD drivers that can be used for frequency display in electronic tuners under the control of a microcontroller. The LC75834E and LC75834W can drive an LCD with up to 136 segments directly, the LC75834JE can drive an LCD with up to 120 segments directly. The LC75834E and LC75834W and LC75834JE can also control up to 8 general-purpose output ports. Since the LC75834E, LC75834W, and LC75834JE use separate power supply systems for the LCD drive block and the logic block, the LCD driver block power-supply voltage can be set to any voltage in the range 2.7 to 6.0 volts, regardless of the logic block power-supply voltage.




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