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75817NW

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. : 004252122 Detail

75817NW: 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...

75817NW Data Sheet

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Part Number:
75817NW
Supply Ability:
5000

Price Break

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

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Upload time: 2024/11/21

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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 driver 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

VDD max
VDD
0.3 to +7.0
V
VLCD max
VLCD
0.3 to +11.0
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
VIN3
VLCD1, VLCD2, VLCD3, VLCD4
0.3 to VLCD + 0.3
Output voltage
VOUT1
DO
0.3 to +7.0
V
VOUT2
OSCO, KS1 to KS6, P1 to P4
0.3 to VDD + 0.3
VOUT3
VLCD0, S1 to S60, COM1 to COM10
0.3 to VLCD + 0.3
Output current
VOUT1
S1 to S60
300
A
VOUT2
COM1 to COM10
3
mA
VOUT3
KS1 to KS6
1
VOUT4
P1 to P4
5
Allowable power dissipation
Pd max
Ta = 85°C
200
mW
Operating temperature
Topr
40 to +85
°C
Storage temperature
Tstg
55 to +125
°C



Description

The 75817NW are 1/8 to 1/10 duty dot matrix LCD display controllers/drivers that support 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 75817NW 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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