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PDF LC75809PT Data sheet ( Hoja de datos )
| Número de pieza | LC75809PT | |
| Descripción | 1/4 and 1/3-Duty General-Purpose LCD Display Driver | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LC75809PT (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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Ordering number : ENA1976
LC75809PT
CMOS IC
1/4 and 1/3-Duty General-Purpose
LCD Display Driver
http://onsemi.com
Overview
The LC75809PT is the 1/4 duty and 1/3 duty general-purpose microprocessor-controlled LCD driver that can be used
in applications such as frequency display in products with electronic tuning. In addition to being able to drive up to
352 segments directly, the LC75809PT can also control up to 12 general-purpose output ports. Because it has the
PWM output of a maximum of 6ch, the brightness control of the LED backlight of RGB×2 can be done.
Incorporation of an oscillation circuit helps to reduce the number of external resistors and capacitors required.
Features
• Support for 1/4-duty 1/3-bias or 1/3-duty 1/3-bias drive techniques under serial data control.
When 1/4-duty : Capable of driving up to 352 segments
When 1/3-duty : Capable of driving up to 267 segments
• Serial data input supports CCB format communication with the system controller. (Support 3.3V and 5V operation)
• 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 6ch. (It can output from the general-purpose output port).
• Support for clock output function of 1ch. (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 switching between the internal oscillator operating mode and external clock operating mode.
• High generality, since display data is displayed directly without the intervention of a decoder circuit.
• Built-in display contrast adjustment 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.
Semiconductor Components Industries, LLC, 2013
July, 2013
11812HKPC 20110826-S00008 No.A1976-1/43
1 page  
Package Dimensions
unit : mm (typ)
3274
16.0
14.0
75 51
76 50
LC75809PT
100
1
0.5
(1.0)
26
25
0.2
0.125
SANYO : TQFP100(14X14)
Pin Assignment
75
76
S76
S77
S78
S79
S80
S81
S82
S83
S84
S85
S86
S87/COM4
COM3
COM2
COM1
S88
VDD
VDD1
VDD2
VSS
S89/OSCI
INH
CE
CL
DI
100
1
LC75809PT
(TQFP100)
51
50
S50
S49
S48
S47
S46
S45
S44
S43
S42
S41
S40
S39
S38
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
26
25
Top view
No.A1976-5/43
5 Page 
• When the control data is transferred
LC75809PT
CE
CL
DI 0 0 0 0 0 0 1 0 P1A P1B P1C P1D P2A P2B P2C P3A P3B P3C P4A P4B P4C P5A P5B P5C P6A P6B P6C P7A P7B P7C P8A P8B P8C P9A P9B P9C
B0 B1 B2 B3 A0 A1 A2 A3
CCB address
8 bits
Control data
61 bits
P10A P10B P10C P11A P11B P11C P12A P12B P12C PF0 PF1 PF2 PF3 FC0 FC1 FC2 OC CT0 CT1 CT2 P0 P1 P2 P3 DT DN EXF SC BU 0 0 0 0 1 0 0
DD
3 bits
0 0 0 0 0 0 1 0 W10 W11 W12 W13 W14 W15 W20 W21 W22 W23 W24 W25 W30 W31 W32 W33 W34 W35
B0 B1 B2 B3 A0 A1 A2 A3
CCB address
8 bits
Control data
45 bits
W40 W41 W42 W43 W44 W45 W50 W51 W52 W53 W54 W55 W60 W61 W62 W63 W64 W65 0 0 0 0 0 0 0 0 0 1 0 1
DD
3 bits
Note: DD is the direction data
• CCB address ......................... “40H”
• D1 to D352 ........................... Display data
• P1A, P1B, P1C, P1D ............ General-purpose output port (P1) function setting control data
• P2A, P2B, P2C to P12A,....... General-purpose output port (P2 to P12) function setting control data
P12B, P12C
• PF0 to PF3 ............................ PWM output waveform frame frequency setting control data
• FC0 to FC2 ........................... Common/segment output waveform frame frequency setting control data
• OC ........................................ Internal oscillator operating mode/external clock operating mode switching control data
• CT0 to CT2 .......................... Display contrast setting control data
• P0 to P3 ................................ Segment output port/general-purpose output port switching control data
• DT ........................................ 1/4-duty 1/3-bias drive or 1/3-duty 1/3-bias drive switching control data
• DN ........................................ S88 pin and S89/OSCI pin state setting control data
• EXF ...................................... External clock operating frequency setting 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, W40 to W45,
W50 to W55, W60 to W65
No.A1976-11/43
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet LC75809PT.PDF ] | |
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