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LC75817W

Features: • Key input function for up to 30 keys (A key scan is performed only when a key is pressed.)• Controls and drives a 5×7, 5 ×8, or 5 ×9 dot matrix LCD.• Supports accessory display segment drive (up to 60 segments)• Display technique: 1/8 duty 1/4 bias drive (5 ×7 d...

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SeekIC No. : 004392126 Detail

LC75817W: Features: • Key input function for up to 30 keys (A key scan is performed only when a key is pressed.)• Controls and drives a 5×7, 5 ×8, or 5 ×9 dot matrix LCD.• Supports accessory...

LC75817W Data Sheet

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Part Number:
LC75817W
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.)
• Controls and drives a 5×7, 5 ×8, or 5 ×9 dot matrix LCD.
• Supports accessory display segment drive (up to 60 segments)
• Display technique: 1/8 duty 1/4 bias drive (5 ×7 dots)
   1/9 duty 1/4 bias drive (5 × 8 dots)
   1/10 duty 1/4 bias drive (5 ×9 dots)
• Display digits: 12 digits× 1 line (5× 7 dots, 5 × 8 dots)
                          11 digits×1 line (5 ×9 dots)
• Display control memory
   CGROM: 240 characters (5 × 7, 5 ×8, or 5 × 9 dots)
   CGRAM: 16 characters (5 ×7, 5× 8, or 5 × 9 dots)
   ADRAM: 12 ×5 bits
   DCRAM: 48 × 8 bits
• Instruction function
   Display on/off control
   Display shift function
• Sleep mode can be used to reduce current drain.
• Built-in display contrast adjustment circuit
• Up to 4 general-purpose output ports are included.
• Serial data I/O supports CCB format communication with the system controller.
• Independent LCD drive block power supply VLCD
• A voltage detection type reset circuit is provided to initialize the IC and prevent incorrect display.
• The INH pin is provided. This pin turns off the display,disables key scanning, and forces the general-purpose output ports to the low level.
• RC oscillator circuit


Pinout

Connection Diagram




Specifications

Parameter Symbol Conditions
Ratings
Unit
Maximum supply voltage VDDmax VDD
0.3 to +7.0
V
VLCDmax VLCD
0.3 to +11.0
V
Input voltage VIN1 CE, CL, DI, INH
0.3 to +7.0
V
VIN2 OSCI, KI1 to KI5, TEST
0.3 to VDD +0.3
V
VIN3 VLCD1, VLCD2, VLCD3, VLCD4
0.3 toV LCD+ 0.3
V
Output voltage VOUT1 DO
0.3 to +7.0
V
VOUT2 OSCO, KS1 to KS6, P1 to P4
0.3 to VDD +0.3
V
VOUT3 VLCD0, S1 to S60, COM1 to COM10
0.3 to VLCD +0.3
V
Output current IOUT1 S1 to S60
300
A
IOUT2 COM1 to COM10
3
mA
IOUT3 KS1 to KS6
1
mA
IOUT4 P1 to P4
5
mA
Allowable powerdissipation Pdmax Ta = 85
200
mW
Operating temperature Topr
40 to +85
Storage temperature Tstg
50 to +125



Description

The LC75817E and LC75817W are 1/8 to 1/10 duty dot matrix LCD display controller/drivers that supports the display of characters, numbers, and symbols. In addition to generating dot matrix LCD drive signals based on data transferred serially from a microcontroller, the LC75817E and LC75817W also provide on-chip character display ROM and RAM to allow display systems to be implemented easily. These products also provide up to 4 general-purpose output ports and incorporate a key scan circuit that accepts input from up to 30 keys to reduce printed circuit board wiring.




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