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PDF LC75897PW Data sheet ( Hoja de datos )
| Número de pieza | LC75897PW | |
| Descripción | General-Purpose LCD Display Driver | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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LC75897PW
CMOS LSI
1/3, 1/4-Duty General-Purpose
LCD Driver
http://onsemi.com
Overview
The LC75897PW is 1/3 duty and 1/4 duty general-purpose LCD display
driver that can be used for frequency display in electronic tuners under the
control of a microcontroller. The LC75897PW can drive an LCD with up to
512 segments directly. The LC75897PW can also control up to 8 general-
purpose output ports. The LC75897PW has a built-in of up to three PWM
output port channels, which enables to adjust the brightness of the RGB LED
backlight.
SQFP144(20X20)
Features
Switching between 1/3 duty and 1/4 duty drive techniques under serial data control.
Switching between 1/2 bias and 1/3 bias drive techniques under serial data control.
Up to 387 segments for 1/3 duty drive and 512 segments for 1/4 duty drive can be displayed.
Switching between the segment, general-purpose, PWM, and clock output ports can be controlled using serial data
(up to 8 general-purpose output ports, up to 3-channel PWM output ports, and one clock output port).
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 the frame frequency for common and segment output waveforms.
Serial data control of switching between the RC oscillator operating mode and external clock operating mode.
High generality, since display data is displayed directly without decoder intervention.
Built-in display contrast adjustment circuit
Independent VLCD for the LCD driver block
The INH pin can force the display to the off state.
RC oscillator circuit
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.
ORDERING INFORMATION
See detailed ordering and shipping information on page 35 of this data sheet.
© Semiconductor Components Industries, LLC, 2014
September 2014 - Rev. 0
1
Publication Order Number :
LC75897PW/D
1 page  
Package Dimensions
unit : mm
SPQFP144 20x20 / SQFP144
CASE 131AD
ISSUE A
22.0 0.2
20.0 0.1
LC75897PW
12
0.5
(1.25)
0.2 0.04
0.10
0.145 0.045
0.10
SOLDERING FOOTPRINT*
21.40
0~10°
GENERIC
MARKING DIAGRAM*
(Unit: mm)
XXXXXXXX
YMDDD
XXXXX = Specific Device Code
Y = Year
M = Month
DDD = Additional Traceability Data
0.50
0.28
*This information is generic. Please refer to
device data sheet for actual part marking.
may or may not be present.
NOTE: The measurements are not to guarantee but for reference only.
*For additional information on our Pb-Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
http://www.onsemi.com
5
5 Page 
When the control data is transferred
LC75897PW
CE
CL
DI 0 1 1 0 0 0 0 1 W10 W11 W12 W13 W14 W15 W20 W21 W22 W23 W24 W25 W30 W31 W32 W33 W34 W35 PC1 PC2 PC3 PC4 PC5 PC6 PC7 PC8
B0 B1 B2 B3 A0 A1 A2 A3
CCB address
8 bits
Control data
53 bits
PS10 PS11 PS20 PS21 PS30 PS31 PS40 PS41 PS5 PS6 PS7 PS8 CT0 CT1 CT2 DR DT OC FC0 FC1 FC2 PF0 PF1 PF2 SC BU 0 0 0 0
DD
3 bits
Note: DD is the direction data.
• CCB address ....... "86H"
• D1 to D387 ......... Display data
• W10 to W15, W20 to W25, W30 to W35
......... PWM data at PWM output ports
• PC1 to PC8 ......... General-purpose output port state setting control data
• PS10, PS11, PS20, PS21, PS30, PS31, PS40, PS41, PS5 to PS8
......... Segment output port/general-purpose output port/PWM output port/clock output port switching
control data
• CT0 to CT2 ......... Display contrast setting control data
• DR ...................... 1/2 bias drive or 1/3 bias drive switching control data
• DT ...................... 1/3 duty drive or 1/4 duty drive switching control data
• OC ...................... RC oscillator operating mode/external clock operating mode switching control data
• FC0 to FC2 ......... Common and segment output waveforms frame frequency setting control data
• PF0 to PF2 ......... PWM output waveforms frame frequency setting control data
• SC ...................... Segments on/off control data
• BU ...................... Normal mode/power-saving mode control data
http://www.onsemi.com
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet LC75897PW.PDF ] | |
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