LC75834E, 75834W, 75834JE Duty General-Purpose Drivers Overv
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Ordering number EN5597A
LC75834E, 75834W, 75834JE
Duty General-Purpose Drivers
Overview
LC75834E, LC75834W, LC75834JE 1/4-duty general-purpose drivers that used frequency display electronic tuners under control microcontroller. LC75834E LC75834W drive with segments directly, LC75834JE drive with segments directly. LC75834E LC75834W LC75834JE also control general-purpose output ports. Since LC75834E, LC75834W, LC75834JE separate power supply systems drive block logic block, driver block power-supply voltage voltage range volts, regardless logic block power-supply voltage.
Serial data control switching between segment output port general-purpose output port functions High generality, since display data displayed directly without decoder intervention. Independent VLCD driver block (VLCD voltage range volts, regardless logic block power-supply voltage.) force display state. oscillator circuit
Package Dimensions
unit: 3156-QFP48E
[LC75834E]
Features
Supports both duty bias duty bias drive under serial data control. LC75834E, LC75834W: segments LC75834JE: segments (without S18, S27, segment output pins from LC75834E, LC75834W) Serial data input supports CCB* format communication with system controller. Serial data control power-saving mode based backup function segments forced function
SANYO: QFP48E
Continued next page.
trademark SANYO ELECTRIC CO., LTD. SANYO's original format addresses controlled SANYO.
SANYO products described contained herein have specifications that handle applications that require extremely high levels reliability, such life-support systems, aircraft's control systems, other applications whose failure reasonably expected result serious physical and/or material damage. Consult with your SANYO representative nearest before using SANYO products described contained herein such applications. SANYO assumes responsibility equipment failures that result from using products values that exceed, even momentarily, rated values (such maximum ratings, operating condition ranges, other parameters) listed products specifications SANYO products described contained herein.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, Chome, Ueno, Taito-ku, TOKYO, JAPAN
93098HA (OT)/63097HA (OT) 5597-1/19
LC75834E, 75834W, 75834JE
Continued from preceding page.
unit: 3163A-SQFP48
[LC75834W]
unit: 3148-QFP44MA
[LC75834JE]
SANYO: SQFP48
SANYO: QIP44MA
Specifications
Absolute Maximum Ratings 25°C,
Parameter Maximum supply voltage Symbol VLCD Input voltage Output voltage VOUT VOUT IOUT Output current IOUT IOUT Allowable power dissipation Operating temperature Storage temperature Topr Tstg VLCD VLCD VLCD S34, COM1 COM4, COM1 COM4 85°C Conditions Ratings -0.3 +7.0 -0.3 +7.0 -0.3 +7.0 -0.3 -0.3 VLCD -0.3 -0.3 VLCD +125 Unit
Note: LC75834JE have S18, output pins.
Allowable Operating Ranges +85°C,
Ratings Parameter Supply voltage Symbol VLCD VLCD1 VLCD2 ROSC COSC fOSC VLCD VLCD1 VLCD2 Figure Figure Figure Figure Figure Figure Figure Figure Figure INH, Figure Conditions VLCD VLCD VLCD VLCD Unit
Input voltage Input high-level voltage Input low-level voltage Recommended external resistance Recommended external capacitance Guaranteed oscillation range Data setup time Data hold time wait time setup time hold time High-level clock pulse width Low-level clock pulse width Rise time Fall time switching time
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Electrical Characteristics Allowable Operating Ranges
Ratings Parameter Hysteresis width Input high level current Input level current Symbol Output high-level voltage Output low-level voltage VMID VMID Output middle-level voltage*1 VMID VMID VMID Oscillator frequency fOSC ILCD Current drain ILCD ILCD Conditions INH; INH; S34; COM1 COM4; -100 S34; COM1 COM4; COM1 COM4; bias, ±100 S34; bias, S34; bias, COM1 COM4; bias, ±100 COM1 COM4; bias, ±100 OSC; ROSC COSC VDD; power saving mode VDD; output open, fosc VLCD; power saving mode VLCD; VLCD output open bias, fosc VLCD; VLCD output open bias, fosc VLCD VLCD VLCD VLCD VLCD -5.0 VLCD VLCD VLCD VLCD VLCD VLCD VLCD VLCD Unit
Note: Excluding bias voltage generation divider resistors built VLCD1 VLCD2. (See Figure LC75834JE have S18, S27, output pins.
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VLCD
VLCD1 common segments drivers VLCD2 Except these resistors
A06588
Figure
When stopped level
When stopped high level
Figure
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Assignments
Block Diagram
COM3 COM2 COM1 S8/P8 S2/P2 S1/P1
A06591
Common driver Clock generator
Segment driver latch
VLCD VLCD1 VLCD2
Shift register
Address detector
Note: LC75834JE have S18, S27, output pins.
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Functions
S1/P1 S8/P8 COM1 COM2 COM3 COM4
LC75834E, 75834W LC75834JE
Function Segment outputs displaying display data transferred serial data input. pins S1/P1 S8/P8 used general-purpose output ports when control data. Common driver outputs. frame frequency given (fOSC/512) Oscillator connection oscillator circuit formed connecting external resistor capacitor Serial data transfer inputs. These pins connected control microprocessor. Chip enable Synchronization clock Transfer data
Active
Handling when unused
Open
Open
Display control input (VSS): S1/P1 S8/P8 (These pins forcible segment output port function fixed level.) (VSS), COM1 COM4 (VSS) high (VDD): Note that serial data transfers performed when display forced this pin. Used apply drive 2/3-bias voltage externally. This must connected VLCD2 when 1/2-bias drive used. Used apply drive 1/3-bias voltage externally. This must connected VLCD1 when 1/2-bias drive used. Logic block power supply. Provide voltage range driver block power supply. Provide voltage range Ground pin. Connect ground.
VLCD1 VLCD2 VLCD
Open
Open
Note: LC75834JE have S18, S27, output pins.
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Serial Data Transfer Format
When stopped level
Note: Direction data
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LC75834E, 75834W, 75834JE When stopped high level
address bits
Display data bits
Control data bits
bits
address bits
Display data bits
Fixed data bits
bits
address bits
Display data bits
Fixed data bits
bits
address bits
Display data bits
Fixed data bits
bits
Note: Direction data address.46H D136.Display data LC75834JE, display data D36, D72, D105 D108, D133 D136 must .Segment output port/general-purpose output port switching control data .1/2-bias drive 1/3-bias drive switching control data SC.Segments on/off control data .Normal mode/power-saving mode control data
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Serial Data Transfer Examples
LC75834E LC75834W when109 more segments used, LC75834JE when more segments used,192 bits serial data must sent.
Note: LC75834JE, display data D36, D72, D105 D108, D133 D136 must
LC75834E LC75834W when used with less than segments, LC75834JE when used with less than segments, transfer either bits, bits bits serial data depending number segments used. However, serial data shown figure below (the display data control data) must sent.
Note: LC75834JE, display data must
Control Data Functions
Segment output port/general-purpose output port switching control data. These control data bits switch S1/P1 S8/P8 output pins between their segment output port general-purpose output port functions.
Control data S1/P1 S2/P2 S3/P3 Output states S4/P4 S5/P5 S6/P6 S7/P7 S8/P8
Note: Segment output ports General-purpose output ports
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LC75834E, 75834W, 75834JE Also note that when general-purpose output port function selected, output pins display data will have correspondences listed tables below.
Output S1/P1 S2/P2 S3/P3 S4/P4 Corresponding display data Output S5/P5 S6/P6 S7/P7 S8/P8 Corresponding display data
example, output S4/P4 general-purpose output port function selected, will output high level (VLCD) when display data will output level (VSS) when 1/2-bias drive 1/3-bias drive switching control data This control data selects either 1/2-bias drive 1/3-bias drive.
Drive type 1/3-bias drive 1/2-bias drive
Segments on/off control data This control data controls on/off state segments.
Display state
However, note that when segments turned setting segments turned outputting segment waveforms from segment output pins. Normal mode/power-saving mode control data This control data selects either normal mode power-saving mode.
Normal mode Power saving mode (The oscillator stopped, common segment output pins level. However, S1/P1 S8/P8 output pins that general-purpose output ports control data used generalpurpose output ports.) Mode
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Display Data Segment Output Correspondence
Segment output S1/P1 S2/P2 S3/P3 S4/P4 S5/P5 S6/P6 S7/P7 S8/P8 COM1 COM2 COM3 COM4 Segment output
COM1 D101 D105 D109 D113 D117 D121 D125 D129 D133
COM2 D102 D106 D110 D114 D118 D122 D126 D130 D134
COM3 D103 D107 D111 D115 D119 D123 D127 D131 D135
COM4 D100 D104 D108 D112 D116 D120 D124 D128 D132 D136
Note: This applies case where S1/P1 S8/P8 output pins segment output ports. LC75834JE have S18, S27, output pins.
example, table below lists segment output states output pin.
Display data Segment output (S11) state segments corresponding COM1 COM4 off. segments corresponding COM4 segments corresponding COM3 segments corresponding COM3 COM4 segments corresponding COM2 segments corresponding COM2 COM4 segments corresponding COM2 COM3 segments corresponding COM2, COM3 COM4 segments corresponding COM1 segments corresponding COM1 COM4 segments corresponding COM1 COM3 segments corresponding COM1, COM3 COM4 segments corresponding COM1 COM2 segments corresponding COM1, COM2 COM4 segments corresponding COM1 COM3 segments corresponding COM1 COM4
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Duty, Bias Drive Technique
COM1
COM2
COM3
COM4
driver output when segments corresponding COM1, COM2, COM3, COM4 turned off. driver output when only segments corresponding COM1 driver output when only segments corresponding COM2 driver output when segments corresponding COM1 COM2 driver output when only segments corresponding COM3 driver output when segments corresponding COM1 COM3 driver output when segments corresponding COM2 COM3 driver output when segments corresponding COM1, COM2, COM3 driver output when only segments corresponding COM4 driver output when segments corresponding COM2 COM4 driver output when segments corresponding COM1, COM2,COM3, COM4
Duty, Bias Waveforms
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Duty, Bias Drive Technique
COM1
COM2
COM3
COM4
driver output when segments corresponding COM1, COM2, COM3, COM4 turned off. driver output when only segments corresponding COM1
driver output when only segments corresponding COM2
driver output when segments corresponding COM1 COM2 driver output when only segments corresponding COM3
driver output when segments corresponding COM1 COM3
driver output when segments corresponding COM2 COM3
driver output when segments corresponding COM1, COM2, COM3
driver output when only segments corresponding COM4 driver output when segments corresponding COM2 COM4 driver output when segments corresponding COM1, COM2,COM3, COM4
Duty, Bias Waveforms
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Display Control
Since internal data (the display data control data) undefined when power first applied, applications should same time power applied turn display (LC75834E, LC75834W: This sets S1/P1 S8/P8, S34, COM1 COM4 level. LC75834JE: This sets S1/P1 S8/P8, S17, S26, S33, COM1 COM4 level.) during this period send serial data from controller. controller should then high after data transfer completed. This procedure prevents meaningless displays power (See Figure
Notes Power On/Off Sequences
Applications should observe following sequence when turning LC75834E, LC75834W, LC75834JE power off. power Logic block power supply (VDD) driver block power supply (VLCD) power off: driver block power supply (VLCD) Logic block power supply (VDD) However, logic driver block shared power supply, then power supplies turned same time.
Note: LC75834JE, display data D36, D72, D105 D108, D133 D136 must
Figure
Notes Controller Transfer Display Data
Since LC75834E, LC75834W, LC75834JE accept display data divided into four separate transfer operations, recommend that applications transfer display data within period less than prevent observable degradation display quality.
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Sample Application Circuit
Bias (for with normal size panels) LC75834E, LC75834W
0.047
From microcontroller
Note: When capacitor except recommended external capacitance (COSC connected pin, recommend that applications connect with capacitor range 2200pF.
LC75834JE
0.047
From microcontroller
Note: When capacitor except recommended external capacitance (COSC connected pin, recommend that applications connect with capacitor range 2200pF.
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Sample Application Circuit
Bias (for with large panels) LC75834E, LC75834W
0.047 From microcontroller
Note: When capacitor except recommended external capacitance (COSC connected pin, recommend that applications connect with capacitor range 2200pF.
LC75834JE
0.047 From microcontroller
Note: When capacitor except recommended external capacitance (COSC connected pin, recommend that applications connect with capacitor range 2200pF.
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LC75834E, 75834W, 75834JE
Sample Application Circuit
Bias (for with normal size panels) LC75834E, LC75834W
0.047 From microcontroller
Note: When capacitor except recommended external capacitance (COSC connected pin, recommend that applications connect with capacitor range 2200pF.
LC75834JE
0.047
From microcontroller
Note: When capacitor except recommended external capacitance (COSC connected pin, recommend that applications connect with capacitor range 2200pF.
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LC75834E, 75834W, 75834JE
Sample Application Circuit
Bias (for with large panels) LC75834E, LC75834W
0.047 From microcontroller
Note: When capacitor except recommended external capacitance (COSC connected pin, recommend that applications connect with capacitor range 2200pF.
LC75834JE
0.047 From microcontroller
Note: When capacitor except recommended external capacitance (COSC connected pin, recommend that applications connect with capacitor range 2200pF.
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LC75834E, 75834W, 75834JE
Specifications SANYO products described contained herein stipulate performance, characteristics, functions described products independent state, guarantees performance, characteristics, functions described products mounted customer's products equipment. verify symptoms states that cannot evaluated independent device, customer should always evaluate test devices mounted customer's products equipment. SANYO Electric Co., Ltd. strives supply high-quality high-reliability products. However, semiconductor products fail with some probability. possible that these probabilistic failures could give rise accidents events that could endanger human lives, that could give rise smoke fire, that could cause damage other property. When designing equipment, adopt safety measures that these kinds accidents events cannot occur. Such measures include limited protective circuits error prevention circuits safe design, redundant design, structural design. event that SANYO products (including technical data, services) described contained herein controlled under applicable local export control laws regulations, such products must exported without obtaining export license from authorities concerned accordance with above law. part this publication reproduced transmitted form means, electronic mechanical, including photocopying recording, information storage retrieval system, otherwise, without prior written permission SANYO Electric Co., Ltd. information described contained herein subject change without notice product/technology improvement, etc. When designing equipment, refer "Delivery Specification" SANYO product that intend use. Information (including circuit diagrams circuit parameters) herein example only; guaranteed volume production. SANYO believes information herein accurate reliable, guarantees made implied regarding infringements intellectual property rights other rights third parties.
This catalog provides information September, 1998. Specifications information herein subject change without notice. 5597-19/19
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