lc75878e Sanyo Semiconductor Corporation, lc75878e Datasheet

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lc75878e

Manufacturer Part Number
lc75878e
Description
1/8 To 1/10 Duty General-purpose Lcd Display Drivers
Manufacturer
Sanyo Semiconductor Corporation
Datasheet
Ordering number : ENN*6473
Preliminary
Overview
The LC75878E and LC75878W are 1/8 to 1/10 duty
general-purpose LCD display drivers used for character
and graphics display. These products operate under the
control of a microcontroller and can directly drive an LCD
with up to 730 segments. They can also control up to 4
general-purpose output ports.
Features
• 1/8duty–1/4bias, 1/9duty–1/4bias, and 1/10duty–1/4bias
• Serial data input supports CCB format communication
• Serial data control of the power-saving mode based
• Direct display of display data without the use of a
• Built-in display contrast adjustment circuit.
• Up to 4 general-purpose output ports are included.
• Independent LCD driver block power supply V
• The INH pin is provided. This pin turns off the display
• RC oscillator circuit
drive schemes can be controlled from serial data.
with the system controller.
backup function and all the segments forced off
function.
decoder provides high generality.
and forces the general-purpose output ports to the low
level.
1/8duty–1/4bias: up to 600 segments
1/9duty–1/4bias: up to 666 segments
1/10duty–1/4bias: up to 730 segments
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
• CCB is a trademark of SANYO ELECTRIC CO., LTD.
• CCB is SANYO’s original bus format and all the bus
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
addresses are controlled by SANYO.
SANYO Electric Co.,Ltd. Semiconductor Company
1/8 to 1/10 Duty General-Purpose LCD Display Drivers
LCD
.
Package Dimensions
unit: mm
3151-QFP100E
unit: mm
3181B-SQFP100
0.575
100
80
81
1.0
76
1
100
LC75878E, 75878W
0.65
75
1
0.5
[LC75878W]
[LC75878E]
0.2
21.6
23.2
20.0
16.0
14.0
0.3
1.0
41000RM (OT) No. 6473 -1/33
51
0.5
25
0.575
30
50
26
0.5
1.6
51
SANYO: QFP100E
SANYO: SQFP100
50
31
0.8
1.4
0.145
0.15
0.1
2.7
CMOS IC
0.1

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lc75878e Summary of contents

Page 1

... Ordering number : ENN*6473 1/8 to 1/10 Duty General-Purpose LCD Display Drivers Preliminary Overview The LC75878E and LC75878W are 1/8 to 1/10 duty general-purpose LCD display drivers used for character and graphics display. These products operate under the control of a microcontroller and can directly drive an LCD with up to 730 segments. They can also control general-purpose output ports ...

Page 2

... Pin Assignment LC75878E, 75878W No. 6473-2/33 ...

Page 3

... Recommended external resistance Recommended external capacitance Guaranteed oscillation range Data setup time Data hold time CE wait time CE setup time CE hold time High level clock pulse width Low level clock pulse width INH switching time LC75878E, 75878W =0V SS Symbol Conditions V max ...

Page 4

... Input high level current Input low level current Output high level voltage Output low level voltage Output middle level voltage * Oscillator frequency Current drain Note: * Excluding the bias voltage generation divider resistor built into V LC75878E, 75878W Symbol Conditions V CE, CL, DI, INH H I CE, CL, DI, INH ...

Page 5

... When CL is stopped at the low level • When CL is stopped at the high level LC75878E, 75878W CONTRAST ADJUSTER To the common and segment drivers Excluding these resistors Figure 1 Figure 2 No. 6473-5/33 ...

Page 6

... Block Diagram GENERAL PORT CLOCK GENERATOR CONTRAST ADJUSTER LC75878E, 75878W COMMON SEGMENT DRIVER & LATCH DRIVER CONTROL REGISTER SHIFT REGISTER CCB INTERFACE No. 6473-6/33 ...

Page 7

... V when the display contrast adjustment circuit is used and LCD provide a voltage of between 4.5 and 11.0 V when the circuit is not used Power supply connection. Connect to ground. SS LC75878E, 75878W Function ) SS • Display off S1 to S73 = “L” (V 4). LCD S74/COM10, S75/COM9 = “L” LCD COM1 to COM8 = “ ...

Page 8

... CCB address 8 bits CCB address 8 bits • When the control data is transferred. CCB address 8 bits Note B3 ...... CCB address DD ................................ Direction data LC75878E, 75878W Display data 120 bits Display data 120 bits Display data 120 bits Display data 120 bits ...

Page 9

... PC1 to PC4: ........ General-purpose output port state setting data • CT0 to CT3, CTC: Display contrast setting data • SC: ...................... Segment on/off control data • BU: ...................... Normal mode/power saving mode control data • DT1, DT2: ............ Display technique setting data LC75878E, 75878W Display data 120 bits Display ...

Page 10

... CCB address 8 bits CCB address 8 bits • When the control data is transferred. CCB address 8 bits Note B3 ...... CCB address DD ................................ Direction data LC75878E, 75878W Display data 135 bits Display data 135 bits Display data 135 bits Display data 135 bits ...

Page 11

... PC1 to PC4: ........ General-purpose output port state setting data • CT0 to CT3, CTC: Display contrast setting data • SC: ...................... Segment on/off control data • BU: ...................... Normal mode/power saving mode control data • DT1, DT2: ............ Display technique setting data LC75878E, 75878W Display data 135 bits Display ...

Page 12

... Display CCB data address 130 bits 8 bits • When the control data is transferred. CCB address 8 bits Note B3 ...... CCB address DD ................................ Direction data LC75878E, 75878W Display data 150 bits Display data 150 bits Display data 150 bits Display data 150 bits ...

Page 13

... PC1 to PC4: ........ General-purpose output port state setting data • CT0 to CT3, CTC: Display contrast setting data • SC: ...................... Segment on/off control data • BU: ...................... Normal mode/power saving mode control data • DT1, DT2: ............ Display technique setting data LC75878E, 75878W Display data 150 bits Display ...

Page 14

... Note that although the display contrast can be adjusted by operating the built-in display contrast adjustment circuit also possible to apply fine adjustments to the contrast by connecting an external variable resistor to the V modifying the V 4 pin voltage. However, the following conditions must be met: (V LCD ≥ ≥ LCD LC75878E, 75878W PC1 PC2 PC3 PC4 ) ...

Page 15

... Notes 75): Segment outputs COMn ( 10): Common outputs LC75878E, 75878W Mode 4 level and the oscillator on the OSC pin is stopped. Note that the states of the LCD Output pins S75/COM9 S74/COM10 S75 S74 ...

Page 16

... D273 S36 D281 S37 D289 S38 D297 S39 D305 S40 D313 S41 D321 S42 D329 S43 D337 S44 D345 S45 D353 LC75878E, 75878W COM2 COM3 COM4 D10 D11 D12 D18 D19 D20 D26 D27 D28 D34 D35 D36 D42 D43 ...

Page 17

... LC75878E, 75878W COM2 COM3 COM4 D362 D363 D364 D370 D371 D372 D378 D379 D380 D386 D387 D388 D394 D395 D396 D402 D403 D404 D410 D411 D412 D418 D419 ...

Page 18

... S39 D343 D344 S40 D352 D353 S41 D361 D362 S42 D370 D371 S43 D379 D380 S44 D388 D389 S45 D397 D398 LC75878E, 75878W COM3 COM4 COM5 COM6 D12 D13 D14 D15 D21 D22 D23 D24 D30 D31 D32 D33 ...

Page 19

... LC75878E, 75878W COM3 COM4 COM5 D408 D409 D410 D417 D418 D419 D426 D427 D428 D435 D436 D437 D444 D445 D446 D453 D454 D455 D462 D463 D464 D471 D472 ...

Page 20

... S39 D381 D382 S40 D391 D392 S41 D401 D402 S42 D411 D412 S43 D421 D422 S44 D431 D432 S45 D441 D442 LC75878E, 75878W COM3 COM4 COM5 COM6 D13 D14 D15 D16 D23 D24 D25 D26 D33 D34 D35 D36 ...

Page 21

... LC75878E, 75878W COM3 COM4 COM5 COM6 D453 D454 D455 D456 D463 D464 D465 D466 D473 D474 D475 D476 D483 D484 D485 D486 D493 D494 D495 D496 D503 D504 ...

Page 22

... COM1 to COM8 are turned off LCD driver output when only LCD segments corresponding to COM1 are turned on LCD driver output when only LCD segments corresponding to COM2 are turned on LCD driver output when all LCD segments corresponding to COM1 to COM8 are turned on LC75878E, 75878W No. 6473-22/33 ...

Page 23

... COM1 to COM9 are turned off LCD driver output when only LCD segments corresponding to COM1 are turned on LCD driver output when only LCD segments corresponding to COM2 are turned on LCD driver output when all LCD segments corresponding to COM1 to COM9 are turned on LC75878E, 75878W No. 6473-23/33 ...

Page 24

... COM1 to COM10 are turned off LCD driver output when only LCD segments corresponding to COM1 are turned on LCD driver output when only LCD segments corresponding to COM2 are turned on LCD driver output when all LCD segments corresponding to COM1 to COM10 are turned on LC75878E, 75878W No. 6473-24/33 ...

Page 25

... Internal data (D361 to D480) Undefined Internal data (D481 to D600) Undefined Internal data (PC1 to PC4, CT0 to Undefined CT3, CTC, SC, BU, DT1, DT2) LC75878E, 75878W 4 level and the the V LCD ) on LCD driver block power supply off Logic block power supply(V LCD ...

Page 26

... CT3, CTC, SC, BU, DT1, DT2) Notes on Transferring Display Data from the Controller The display data is transferred to the LC75878E/W in five operations. All of the display data should be transferred within maintain the quality of the displayed image. LC75878E, 75878W Display and control data transfer ...

Page 27

... ≥ 0.047 µF From the controller Note: * variable resistor is not used for display contrast fine adjustment, the V LC75878E, 75878W *2 4 pin must be connected to ground. LCD LCD panel General-purpose output ports Used with the backlight controller or other circuit ...

Page 28

... ≥ 0.047 µF 10 kΩ ≥ R ≥ 2.2 kΩ From the controller Note: * variable resistor is not used for display contrast fine adjustment, the V LC75878E, 75878W *2 4 pin must be connected to ground. LCD LCD panel General-purpose output ports Used with the backlight controller or other circuit ...

Page 29

... ≥ 0.047 µF From the controller Note: * variable resistor is not used for display contrast fine adjustment, the V LC75878E, 75878W *2 4 pin must be connected to ground. LCD LCD panel General-purpose output ports Used with the backlight controller or other circuit ...

Page 30

... ≥ 0.047 µF 10 kΩ ≥ R ≥ 2.2 kΩ From the controller Note: * variable resistor is not used for display contrast fine adjustment, the V LC75878E, 75878W *2 4 pin must be connected to ground. LCD LCD panel General-purpose output ports Used with the backlight controller or other circuit ...

Page 31

... ≥ 0.047 µF From the controller Note: * variable resistor is not used for display contrast fine adjustment, the V LC75878E, 75878W *2 4 pin must be connected to ground. LCD LCD panel General-purpose output ports Used with the backlight controller or other circuit ...

Page 32

... ≥ 0.047 µF 10 kΩ ≥ R ≥ 2.2 kΩ From the controller Note: * variable resistor is not used for display contrast fine adjustment, the V LC75878E, 75878W *2 4 pin must be connected to ground. LCD LCD panel General-purpose output ports Used with the backlight controller or other circuit ...

Page 33

... SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of April, 2000. Specifications and information herein are subject to change without notice. LC75878E, 75878W PS No. 6473-33/33 ...

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