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PDF LC75890W Data sheet ( Hoja de datos )

Número de pieza LC75890W
Descripción 1/4 duty and Static Drive General-Purpose LCD Display Driver
Fabricantes ON Semiconductor 
Logotipo ON Semiconductor Logotipo



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No Preview Available ! LC75890W Hoja de datos, Descripción, Manual

Ordering number : ENA1971B
LC75890W
CMOS LSI
1/4 duty and Static Drive
General-Purpose
LCD Display Driver
http://onsemi.com
Overview
The LC75890W is the 1/4 duty and static drive general-purpose LCD display driver that can be used for displaying
segments for household appliances, home audio visual products, portable devices and other such products under the
control of a microcontroller.The LC75890W can drive up to 148 segments directly. In addition the LC75890W can
control up to 12 general-purpose output ports. They can control the brightness of the LED backlight of RGB, because
they have the PWM output of greatest 3CH built-in. Incorporation of the oscillation circuit helps to reduce the
number of external resistors and capacitors required. Incorporation of the LCD drive bias voltage stabilization circuit
helps to reduce the capacitors for the LCD drive bias voltage stabilization.
Features
Support for 1/4-duty 1/3-bias or static drive techniques under serial data control.
When 1/4-duty drive : Capable of driving up to 148 segments
When Static drive : Capable of driving up to 37 segments
Support for display segment on, off, or blinking for each segment output pin under serial data control.
Serial data control of the power-saving mode based backup function and the all segments forced off function.
Serial data control of switching between the segment output port and general-purpose output port function.
Support for up to 12 general-purpose output ports
Support for the PWM output function of a maximum of 3ch. (It can output from the general-purpose output port ).
Serial data control of the frame frequency of the common and segment output waveforms.
Serial data control of the segment blinking frequency.
Serial data control of switching between the internal oscillator operating mode and external clock operating mode.
Serial data input supports CCB format communication with the system controller.
Independent VLCD for the LCD driver block.
Built-in LCD drive bias voltage stabilization circuit.
The INH pin allows the display to be forced to the off state.
Incorporation of an oscillator circuit. (Incorporation of resistor and capacitor for an oscillation)
CCB is ON Semiconductor® ’s original format.
All addresses are managed by ON Semiconductor®
for this format.
CCB is a registered trademark of Semiconductor Components Industries, LLC.
SQFP48(7X7)
ORDERING INFORMATION
See detailed ordering and shipping information on page 29 of this data sheet.
Semiconductor Components Industries, LLC, 2013
November, 2013
N1313HK 20120216-S00001/30712HKPC/O2611HKPC No.A1971-1/29

1 page




LC75890W pdf
Package Dimensions
unit : mm
SPQFP48 7x7 / SQFP48
CASE 131AJ
ISSUE O
LC75890W
Pin Assignment
COM4
COM3
COM2
COM1
OSCI/S37
VDD
VLCD
VSS
INH
CE
CL
DI
36 25
37 24
LC75890W
SQFP48(7×7)
48 13
1 12
S24
S23
S22
S21
S20
S19
S18
S17
S16
S15
S14
S13
Top view
No.A1971-5/29

5 Page





LC75890W arduino
LC75890W
• CCB address ......................... “50H”
• D1 to D148 ........................... Display data
• BD1 to BD37 ........................ Display blinking control data of each segment output pin
• BF0 to BF2 ........................... Segment blinking frequency setting control data
• FC0 to FC2 ........................... Common/segment output waveform frame frequency setting control data
• DT ........................................ 1/4-duty 1/3-bias drive or static drive switching control data
• EXF ...................................... External clock operating frequency setting control data
• OC ........................................ Internal oscillator operating mode/external clock operating mode switching control data
• SC ......................................... Segment on/off control data
• BU ........................................ Normal mode/power-saving mode control data
• W10 to W15, W20 to W25,... PWM data of the PWM output
W30 to W35
• PF0 to PF3 ............................ PWM output waveform frame frequency setting control data
• P1A, P1B to P12A, P12B ..... General-purpose output function/PWM output function switiching control data of the
general-purpose output port
• P0 to P3 ................................ Segment output port/general-purpose output port switching control data
2. Static drive
(1) When CL is stopped at the low level
• Display data Input
CE
CL
DI 0 0 0 0 1 0 1 0 D1 D2 D3 D4
B0 B1 B2 B3 A0 A1 A2 A3
CCB address
8 bits
D29 D30 D31 D32 D33 D34 D35 D36 D37 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Display data
37 bits
Fixed data
16 bits
DD
3 bits
• Control data Input
CE
CL
DI 0 0 0 0 1 0 1 0 BD1 BD2 BD3 BD4 BD5 BD6 BD7 BD8 BD9 BD10 BD11 BD12 BD13 BD14 BD15 BD16 BD17 BD18 BD19 BD20 BD21 BD22 BD23 BD24 BD25 BD26 BD27 BD28
B0 B1 B2 B3 A0 A1 A2 A3
CCB address
Control data
8 bits
53 bits
BD29 BD30 BD31 BD32 BD33 BD34 BD35 BD36 BD37 BF0 BF1 BF2 FC0 FC1 FC2 DT EXF OC SC BU 0 0 0 0 0 0 1 1
CE
CL
DI 0 0 0 0 1 0 1 0 W10 W11 W12 W13 W14 W15 W20 W21 W22 W23 W24 W25 W30 W31 W32 W33 W34 W35 PF0 PF1 PF2 PF3 P1A P1B P2A P2B P3A P3B
B0 B1 B2 B3 A0 A1 A2 A3
CCB address
Control data
8 bits
53 bits
DD
3 bits
Note: DD is the direction data.
P4A P4B P5A P5B P6A P6B P7A P7B P8A P8B P9A P9B P10A P10B P11A P11B P12A P12B P0 P1 P2 P3 0 0 0 1 0 0
DD
3 bits
No.A1971-11/29

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