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PDF LC75832E Data sheet ( Hoja de datos )
| Número de pieza | LC75832E | |
| Descripción | General-Purpose LCD Display Driver | |
| Fabricantes | Sanyo | |
| Logotipo |  |
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Ordering number : ENA0712A
LC75832E
LC75832W
CMOS IC
Static Drive, 1/2-Duty Drive
General-Purpose LCD
Display Driver
Overview
The LC75832E and 75832W are static drive or 1/2-duty drive, microcontroller-controlled general-purpose LCD drivers
that can be used in applications such as frequency display in products with electronic tuning. In addition to being capable
to drive up to 108 segments directly, they can control up to 4 general-purpose output ports. Since the LC75832E and
LC75832W use separate power supply systems for the LCD drive block and the logic block, the LCD driver block
power-supply voltage can be set to any voltage in the range 2.7 to 6.0 volts, regardless of the logic block power-supply
voltage.
Features
• Serial data control of switching between static drive mode and 1/2 duty drive mode.
• Up to 54 segments can be displayed in static drive (1/1 duty) mode and up to 108 segments can be displayed in 1/2 duty
drive mode.
• Serial data input supports CCB* format communication with the system controller.
• 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 functions
(up to 4 general-purpose output ports).
• Serial data control of the frame frequency of the common and segment output waveforms.
• Either RC oscillator operating or external clock operating mode can be selected with the serial control data.
• High generality, since display data is displayed directly without the intervention of a decoder circuit.
• Independent VLCD for the LCD driver block (VLCD can be set to any voltage in the range of 2.7 to 6.0 volts.)
regardless of the logic block supply-voltage.
• The INH pin allows the display to be forced to the off state.
• Allows compatible operation with the LC75822 (822 mode transfer function).
• CCB is a registrered trademark of SANYO Semiconductor Co., Ltd.
• CCB" is SANYO Semiconductor's original bus format. All bus addresses managed by SANYO Semiconductor for this format.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
O1309HKPC 20070621-S00005,20070621-S00006/30707HKIM No.A0712-1/22
1 page  
Pin Assignment
LC75832E, 75832W
S49
S50
S51
S52
S53
S54
OSC
VDD
INH
VLCD
VSS
CE
CL
DI
COM2
COM1
48
49
64
1
Block Diagram
LC75832E
LC75832W
33
32
17
16
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
Top view
LC75832E: QIP64E(14×14)
LC75832W: SQFP64(10×10)
INH
OSC
VDD
VLCD
VSS
COMMON
DRIVER
CLOCK
GENERATOR
SEGMENT DRIVER & LATCH
CONTROL
REGISTER
SHIFT REGISTER
CCB INTERFACE
No.A0712-5/22
5 Page 
LC75832E, 75832W
Serial Data Transfer Examples
(1) Static drive mode
The serial data shown in the figure below must be sent.
8 bit
01000101
B0 B1 B2 B3 A0 A1 A2 A3
D1 D2
72 bit
D47 D48 D49 D50 D51 D52 D53 D54 0 0 0 0 0 0 0 P0 P1 P2 DT FC0 FC1 FC2 0C SC BU 0
(2) 1/2 duty drive mode
• When 55 or more segments are used
160 bits of serial data (including CCB address bits) must be sent.
8 bit
01000101
B0 B1 B2 B3 A0 A1 A2 A3
D1 D2
72 bit
D47 D48 D49 D50 D51 D52 D53 D54 0 0 0 0 0 0 0 P0 P1 P2 DT FC0 FC1 FC2 0C SC BU 0
0 1 0 0 0 1 0 1 D55 D56
B0 B1 B2 B3 A0 A1 A2 A3
D101 D102 D103 D104 D105 D106 D107 D108 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
• When fewer than 55 segments are used
The serial data shown below (the D1 to D54 display data and the control data) must always be sent.
8 bit
01000101
B0 B1 B2 B3 A0 A1 A2 A3
D1 D2
72 bit
D47 D48 D49 D50 D51 D52 D53 D54 0 0 0 0 0 0 0 P0 P1 P2 DT FC0 FC1 FC2 0C SC BU 0
No.A0712-11/22
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet LC75832E.PDF ] | |
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