S6B0721 Ver la hoja de datos (PDF) - Samsung
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S6B0721 Datasheet PDF : 67 Pages
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S6B0721
PRELIMINARY SPEC. VER. 0.1
132 SEG / 65 COM DRIVER & CONTROLLER FOR STN LCD
INTRODUCTION
The S6B0721 is a driver & controller LSI for graphic dot-matrix liquid crystal display systems. It contains 65
commons and 132 segments driver circuits. This chip is connected directly to a microprocessor, accepts serial or
8-bit parallel display data and stores in an on-chip Display Data RAM of 65 x 132 bits. It provides a high-flexible
display section due to 1-to-1 correspondence between on-chip display data RAM bits and LCD panel pixels. And it
performs display data RAM read/write operation with no externally 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.
FEATURES
Driver Output Circuits
− 65 common outputs / 132 segment outputs
On-chip Display Data RAM
− Capacity: 65 x 132 = 8,580 bits
Applicable Duty Ratios
Duty ratio
1/65
1/49
1/33
Applicable LCD bias
1/7 or 1/9
1/6 or 1/8
1/5 or 1/6
Microprocessor Interface
− 8-bit parallel bi-directional interface with 6800-series or 8080-series
− Serial interface (only write operation) available
Function Set
− Various instructions sets
− H/W, S/W reset capable
Built-in Analog Circuit
− On-chip oscillator circuit
− Voltage converter (x2, x3, x4, x5)
− Voltage regulator (temperature coefficient: -0.05%/°C, -0.2%/°C)
− Voltage follower
− Electronic contrast control function (64 steps)
Operating Voltage Range
− Supply voltage (VDD): 2.4 to 3.6 V
− LCD driving voltage (VLCD = V0 - VSS): 4.0 to 15.0 V
Low Power Consumption
− 70 µΑ Typ. (VDD = 3V, x4 boosting, V0 = 11V, internal power supply ON)
− 10 µΑ Max. (during power save [standby] mode)
Package Type
− Gold bump chip or TCP
Maximum display area
65 × 132
49 × 132
33 × 132
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