S6B0741

Features:

·Driver Output Circuits
   - 128 segment outputs / 129 common outputs
   - Various partial display
   - Partial window moving & data scrolling
·On-chip Display Data RAM
   - Capacity: 129 × 128 × 2 = 33,024bits
·Microprocessor Interface
   - 8-bit parallel bi-directional interface with 6800-series or 8080-series
   - SPI (serial peripheral interface) available (only write operation)
·On-chip Low Power Analog Circuit
   - On-chip oscillator circuit
   - Voltage converter (x3, x4, ×5 or x6)
   - Voltage regulator (temperature coefficient: -0.125%/°C, or external input)
   - On-chip electronic contrast control function (64 steps)
   - Voltage follower (LCD bias : 1/5 to 1/12)
·Operating Voltage Range
   - Supply voltage (V_DD): 1.8 to 3.3V
   - LCD driving voltage (V_LCD = V0 - V_SS): 4.0 to 15.0 V


Specifications

Parameter	Symbol	Rating	Unit
Supply voltage range	VDD	- 0.3 ~ + 7.0	V
	V0, VOUT	+ 0.3 ~ + 17.0	V
	V1, V2, V3, V4	+ 0.3 ~ V0	V
External reference voltage	VEXT	+ 0.3 ~ VDD
Input voltage range	VIN	- 0.3 ~ VDD + 0.3	V
Operating temperature range	TOPR	- 40 ~ + 85
Storage temperature range	TSTR	- 55 ~ + 125

NOTES:
1. VDD, V0, VOUT, V1 to V4, VEXT and VCI are based on VSS = 0V.
2. Voltage VOUT V0 V1 V2 V3 V4 VSS must always be satisfied.
3. If supply voltage exceeds its absolute maximum range, this LSI may be damaged permanently.
It is desirable to use this LSI under electrical characteristic conditions during general operation.
Otherwise, this LSI may malfunction or reduced LSI reliability may result.


Description

The S6B0741 is a driver & controller LSI for 4-level gray scale graphic dot-matrix liquid crystal display systems. It contains 128 segment and 129 common driver circuits. This chip is connected directly to a microprocessor, accepts Serial Peripheral Interface (SPI) or 8-bit parallel display data and stores in an on-chip display data RAM of 128 x 129 x 2 bits. S6B0741 performs display data RAM read/write operation with no external operating clock to minimize power consumption. In addition, because it contains power supply circuits necessary to drive liquid crystal, it is possible to make a display system with the fewest components.