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MaximIC
Maxim Integrated
Description : 3V Dual RS-232 Transceiver with LCD supply and Contrast Controller

General Description
The MAX3325 integrates a two-transmitter, two-receiver RS-232 transceiver with an LCD supply plus temperature-compensated contrast control. It is intended for small 3V instruments requiring a 5V supply for either logic or an LCD display, an adjustable bias signal for contrast, LCD temperature compensation, and an  RS-232 interface for serial communications.
The 5V supply is a regulated charge pump followed by a low-dropout (LDO) linear regulator capable of supplying 11mA for the 5V LCD power.
The MAX3325 has an internal 6-bit digital-to-analog converter (DAC) providing 64 contrast levels, plus an internal temperature sensor that compensates the LCD’s contrast for changes in ambient temperature. The LCD contrast can be designed for any voltage range from -5V to +2V.
The MAX3325’s 250kbps RS-232 transceiver meets all EIA-232E specifications with input voltages from +3.0V to +3.6V. Both the RS-232 section and the LCD supply circuitry can be independently placed in shutdown, tailoring power consumption for battery-powered equipment. The MAX3325 is available in 28-pin SSOP and narrow DIP packages.

Features
♦ +3.0V to +3.6V Single-supply Operation
♦ Provides 5.0V Regulated Output at 11mA in
   3V Systems
♦ 6-Bit DAC with Up/Down Interface for LCD
   Contrast Adjustment
♦ Selectable Positive or Negative LCD Bias
♦ Meets EIA-232E Specifications at 250kbps—Guaranteed
♦ 1µA Shutdown Mode
♦ Uses Small 0.22µF Capacitors—No Inductors Required
♦ Temperature Sensor for LCD Contrast Compensation
♦ Simple, Flexible Design Procedure for a Broad
   Range of LCD Displays
  
Applications
   PDAs and Palmtop Computers
   Handy Terminals
   GPS Receivers
   Hand-Held Medical Equipment
   Industrial Test Equipment

Part Name(s) : SC1S311
SANKEN
Sanken Electric co.,ltd.
Description : SC1S311 SOP8 new LCD power management chip IC Chip

1. Scope
The present specifications shall apply to a monolithic IC type SC1S311 for Switching regulators.

2. Outline
(1) Type : Monolithic IC
(2) Structure : Plastic mold package (Transfer mold)
(3) Applications : Switching regulators

TENAND
Shenzhen Tenand Technology Co., Ltd.
Description : Optocouplers, Phototransistor Output, Dual Channel, SOP8 Package

Description
The LTV-200/205/206/207/208 are consist of a high efficient Gallium Arsenide Infrared LED and a Silicon NPN phototransistor. This design provides excellent isolation between the input and output sides of the Optocoupler.
The LTV-200/205/206/207/208 come in a standard SOP8 small outline package for surface mounting which makes it ideally suited for high density application with limited space.
A Specific CTR range allows a narrow tolerance in the electrical design of the adjacent circuits.

Features
• Two Channel Coupler
SOP8 surface mountable Package
• Isolation Voltage 3.75KV
• UL, CSA, VDE in progress

Application
• Feedback Control Circuits
• Feedback element in switching mode power supplier
• Monitor & Detection Circuits

LiteOn
LiteOn Technology
Description : Optocouplers, Phototransistor Output, Dual Channel, SOP8 Package

Description
The LTV-200/205/206/207/208 are consist of a high efficient Gallium Arsenide Infrared LED and a Silicon NPN phototransistor. This design provides excellent isolation between the input and output sides of the Optocoupler.
The LTV-200/205/206/207/208 come in a standard SOP8 small outline package for surface mounting which makes it ideally suited for high density application with limited space.
A Specific CTR range allows a narrow tolerance in the electrical design of the adjacent circuits.

Features
• Two Channel Coupler
SOP8 surface mountable Package
• Isolation Voltage 3.75KV
• UL, CSA in progress

Application
• Feedback Control Circuits
• Feedback element in switching mode power supplier
• Monitor & Detection Circuits

Description : PhotoMOS® GU SOP 2 From A Miniature SOP8-pin type of 60V/350V/400V load voltage

PhotoMOS® GU SOP 2 From A

Miniature SOP8-pin type of 60V/350V/400V load voltage



FEATURES

1. 2 channels in miniature SOP8-pin design

   The device comes in a super-miniature SO package measuring (W) 4.4 ×(L) 9.37 ×(H) 2.1 mm (W) .173×(L) .369 × (H) .083 inch—approx. 38% of the volume and 66% of the footprint size of

DIP8-pin type.

2. Controls low-level analog signals PhotoMOS feature extremely low closed circuit offset voltage to enable control of low-level analog signals without distortion.

3. Low-level off state leakage current of max. 1 µA



TYPICAL APPLICATIONS

• Measuring instruments

• Data communications

• Computers

• Industrial robots

• High-speed inspection machines.


Description : 2, 4 and 8 Mutiplex LCD Driver

Description
The V6118 is a universal low multiplex LCD driver. The version V6118 2 drives two ways multiplex (two blackplanes) LCD, the version V6118 4, four way multiplex LCD , and the V6118 8, eight way multiplex LCD. The display refresh is handled on chip via a 40 x 8 bit RAM which holds the LCD content driven by the driver. LCD pixels (or segments) are addressed on a one to one basis with the 40 x 8 bit RAM (a set bit corresponds to an activated LCD pixel). The V6118 has very low dynamic current consumption , 150 µA max., making it particularly attractive for portable and battery powered applications.

Features
□ V6118 2 is 2 way multiplex with 2 rows and 38 columns
□ V6118 4 is 4 way multiplex with 4 rows and 36 columns
□ V6118 8 is 8 way multiplex with 8 rows and 32 columns
□ Low dynamic current, 150 µA max.
□ Low standby current, 1 µA max. at +25°C
□ Voltage bias and mux signal generation on chip
□ Display refresh on chip, 40 x 8 RAM for display storage
□ Display RAM addressable as 8, 40 bits words
□ Column driver only mode to have 40 column outputs
□ Crossfree cascadable for large LCD applications
□ Separate logic and LCD supply voltage pins
□ Wide power supply range: VDD: 2 to 6V, VLCD: 2 to 8V
□ BLANK function for LCD blanking on power up etc.
□ Voltage bias inputs for applications with large pixel sizes
□ Bit mapped
□ Serial input / output
□ Very low external component count
□ -40 to + 85 °C temperature range
□ No busy states
LCD updating synchronized to the LCD refresh signal
□ QFP52 and TAB packages

Applications
□ Balances and scales
□ Automotive displays
□ Utility meters
□ Large displays (public information panel etc.)
□ Pagers
□ Portable, battery operated products
□ Telephones

MINILOGIC
Minilogic Device Corporation Limited
Description : ML1001 Series Static LCD COG Driver

General Description
ML1001 static LCD COG (chip on glass) driver is 40 segments LCD driver with gold bump. It can be cascaded to form a single piece of 80 or 120 segments LCD drivers. It targets at custom TN LCD COG Module product which requires the best quality of TN LCD technology. With the use of ML1001 series driver, it offers the best contrast, the widest viewing angle, the widest range of operating voltage and the widest range of operating temperature when compared to the multiplex method.
Our ML1001 includes an internal 32kHz oscillator, a 40-bit shift register, a 40-bit data register, a 16-bit segment driver, a 24-bit segment driver, two common drivers, a blink control circuit, a power-up reset circuit and a frequency divider which offer the necessary clock signals for Blink control, segment & common driver circuit.
Through the DIN pin, the display data is serially shifted into the 40-bit shift register at the rising edge of DCLK signal. The display data, which is going to be displayed on the attached LCD, is then stored in the 40-bit data register at the rising edge of the LOAD signal.
Other features like blinking of the display data by the BEN and BCLK, disable the internal oscillator by the OEN, input an external clock signal to the FIN, and enable or disable the segment and common driver by the SEN1, SEN2, CEN1A and CEN1B, are included.

Features
● A Gold Bump Chip without external component.
● Logic & LCD power supply: 2.0V to 6.0V
● Typical Current consumption: 25uA at VIN = 3V & no load condition.
● Number of segments: 40
● Cascade the ML1001 to form a single piece of 80 or 120 segments LCD driver.
● Simple 3 pin microcontroller interface through DIN, DCLK & LOAD.
● Blink of the display data.
● Offer best contrast and widest viewing angle of TNLCD technology.
● No temperature compensation needed for Topr = -40oC to 80oC.

Application
♦ Instrument LCD Module
♦ Telephone LCD Module
♦ Automotive LCD Module
♦ Handheld Device LCD Module

Description : LCD controllers/drivers

General description

The PCF2119x is a low power CMOS1 LCD controller and driver, designed to drive a dot matrix LCD display of 2-lines by 16 characters or 1-line by 32 characters with 5 ×8 dot format. All necessary functions for the display are provided in a single chip, including on-chip generation of LCD bias voltages, resulting in a minimum of external components and lower system current consumption.The PCF2119x interfaces to most

microcontrollers via a 4-bit or 8-bit bus or via the 2-wire I2C-bus. The chip contains a character generator and displays alphanumeric and kana (Japanese) characters.



Features and benefits

Single-chip LCD controller and driver

2-line display of up to 16 characters plus 160 icons or 1-line display of up to 32 characters plus 160 icons

5×7 character format plus cursor; 5×8 for kana (Japanese) and user defined symbols

Reduced current consumption while displaying icons only

Icon blink function

On-chip:

  ‹Configurable 4, 3, or 2 times voltage multiplier generating LCD supply voltage, independent of VDD, programmable by instruction (external supply also possible)

  ‹Temperature compensation of on-chip generated VLCDOUT: −0.16 %/K to −0.24 %/K (programmable by instruction)

  ‹Generation of intermediate LCD bias voltages

‹  Oscillator requires no external components (external clock also possible)

Display Data RAM (DDRAM): 80 characters

Character Generator ROM (CGROM): 240 characters (5×8)

Character Generator RAM (CGRAM): 16 characters (5×8); 4 characters used to drive 160 icons, 8 characters used if icon blink feature is used in application

4-bit or 8-bit parallel bus and 2-wire I2C-bus interface

Manufactured insilicon gate CMOS process

18 row and 80 column outputs

Multiplex rates 1:18 (2-line display or 1-line display), 1:9 (for 1-line display of up to 16 characters and 80 icons) and 1:2 (for icon only mode)

Uses common 11 code instruction set (extended)

Logic supply voltage: VDD1−VSS1= 1.5 V to 5.5 V (chip may be driven with two battery cells)

LCD supply voltage: VLCDOUT−VSS2= 2.2 V to 6.5 V

VLCDgenerator supply voltage: VDD2−VSS2= 2.2 V to 4 V and VDD3−VSS2=2.2Vto4V

Direct mode to save current consumption for icon mode and multiplex drive mode 1:9 (depending on VDD2value and LCD liquid properties)

Very low current consumption (20μA to 200μA):

  ‹Icon mode: < 25μA

  ‹power-down mode: < 2μA

Icon mode is used to save current. When only icons are displayed, a much lower LCD operating voltage can be used and the switching frequency of the LCD outputs is reduced; in most applications it is possible to use VDDas LCD supply voltage



Applications

Telecom equipment

Portable instruments

Point-of-sale terminals


Description : LCD controller/drivers

General description

The PCF2119x is a low power CMOS1 LCD controller and driver, designed to drive a dot matrix LCD display of 2-lines by 16 characters or 1-line by 32 characters with 5 ×8 dot format. All necessary functions for the display are provided in a single chip, including on-chip generation of LCD bias voltages, resulting in a minimum of external components and lower system current consumption.The PCF2119x interfaces to most

microcontrollers via a 4-bit or 8-bit bus or via the 2-wire I2C-bus. The chip contains a character generator and displays alphanumeric and kana (Japanese) characters.



Features and benefits

Single-chip LCD controller and driver

2-line display of up to 16 characters plus 160 icons or 1-line display of up to 32 characters plus 160 icons

5×7 character format plus cursor; 5×8 for kana (Japanese) and user defined symbols

Reduced current consumption while displaying icons only

Icon blink function

On-chip:

  ‹Configurable 4, 3, or 2 times voltage multiplier generating LCD supply voltage, independent of VDD, programmable by instruction (external supply also possible)

  ‹Temperature compensation of on-chip generated VLCDOUT: −0.16 %/K to −0.24 %/K (programmable by instruction)

  ‹Generation of intermediate LCD bias voltages

‹  Oscillator requires no external components (external clock also possible)

Display Data RAM (DDRAM): 80 characters

Character Generator ROM (CGROM): 240 characters (5×8)

Character Generator RAM (CGRAM): 16 characters (5×8); 4 characters used to drive 160 icons, 8 characters used if icon blink feature is used in application

4-bit or 8-bit parallel bus and 2-wire I2C-bus interface

Manufactured insilicon gate CMOS process

18 row and 80 column outputs

Multiplex rates 1:18 (2-line display or 1-line display), 1:9 (for 1-line display of up to 16 characters and 80 icons) and 1:2 (for icon only mode)

Uses common 11 code instruction set (extended)

Logic supply voltage: VDD1−VSS1= 1.5 V to 5.5 V (chip may be driven with two battery cells)

LCD supply voltage: VLCDOUT−VSS2= 2.2 V to 6.5 V

VLCDgenerator supply voltage: VDD2−VSS2= 2.2 V to 4 V and VDD3−VSS2=2.2Vto4V

Direct mode to save current consumption for icon mode and multiplex drive mode 1:9 (depending on VDD2value and LCD liquid properties)

Very low current consumption (20μA to 200μA):

  ‹Icon mode: < 25μA

  ‹power-down mode: < 2μA

Icon mode is used to save current. When only icons are displayed, a much lower LCD operating voltage can be used and the switching frequency of the LCD outputs is reduced; in most applications it is possible to use VDDas LCD supply voltage



Applications

Telecom equipment

Portable instruments

Point-of-sale terminals


Part Name(s) : MTU420
Myson
Myson Century Inc
Description : 4-Bit Micro-Controller with LCD Driver, 2K Word

GENERAL DESCRIPTION
The MTU420 is an LCD driver with an embedded high-performance 4-bit microcomputer. It contains all the necessary functions in a single chip: dual clock, 4-bit parallel processing ALU, ROM, RAM, input/output ports, timer, clock generator, LCD driver, look-up table and watchdog timer. The set of 118 instructions includes not only 4-bit operation and manipulation instruction but also various conditional branch instructions, and LCD driver data transfer instructions that are powerful and easy to follow. The halt function stops internal operations other than the oscillator, divider and LCD driver in order to minimize power dissipation. The stop function stops all clocks in the chip.

FEATURES
• Wide operating voltage range:
• 118 instruction sets:
   - Binary addition, subtraction, BCD adjustment, logical operation in direct addressing mode and index addressing mode.
   - Single-bit manipulation (set, reset, decision for branch).
   - 4-bit input/output.
   - Various conditional branches.
   - 16 working registers and manipulation.
   - LCD driver data transfer.
   - Look-up table.
   - Programmable option.
   - System clock selection.
• 8-level subroutine nesting.
• Interrupt function:
   - External factor: 2 (INT pin or ports S, M).
   - Internal factor: 2 (timer, divider).
• ROM/RAM capacity:
   - ROM capacity . . . . . 2048 x 16 bits.
   - RAM capacity . . . . . 128 x 4 bits.
• Watchdog timer.
• Input/Output ports:
   - Input ports . . . . . 2 ports/8pins (S, M).
   - Output port . . . . . 1 port/4pins (P).
   - Pseudo serial output port . . . . . Also used for output port.
   - Input/Output ports . . . . . 2 ports/8pins (I/OA, I/OB).
• 2 control outputs . . . . . light, alarm.
LCD driver output:
   - 26 LCD driver outputs (up to 156 LCD segments are drivable).
   - Mask option is used to select static ½ duty, ½ bias ½ duty, ½ bias 1/3 duty, ½ bias ¼ duty, 1/3 bias 1/3 duty, ½ bias ¼ duty and 1/3 bias 1/6 duty drive modes of the LCD panel.
   - Mask option permits LCD driver output pins to be used for output ports.
   - Segment PLA circuit permits any layout on the LCD panel.
• Built-in doubler, halver, tripler.
• One 6-bit timer with programmable option clock.
• 128-byte look-up table for LCD display pattern or 256-nibble look-up table for general purpose.
• Halt function.
• Stop function.
• Dual clock operation.

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