
Samsung
INTRODUCTION
The S6B0724 is a single chip driver & controller LSI for graphic dot-matrix liquid crystal display systems. This chip can beconnected directly to a microprocessor, accepts serial or 8-bit parallel display data from the microprocessor, stores the display data in an on-chip display data RAM of 65x 132bitsand generates a liquid crystal display drive signal independent of the microprocessor.
FEATURES
Display Driver Output Circuits
- 65 common outputs / 132segment outputs
On-chip Display Data RAM
- Capacity: 65x 132= 8,580 bits
- RAM bit data “1”: a dot of display is illuminated.
- RAM bit data “0”: a dot of display is not illuminated.
Microprocessor Interface
- High-speed 8-bit parallel bi-directional interface with 6800-series or 8080-series
- Serial interface (only write operation) available
Various Function Set
- Display ON / OFF, set initial display line, set page address, set column address, read status, write / read display data, select segment driver output, reverse display ON / OFF, entire display ON / OFF, select LCD bias, set/reset modify-read, select common driver output, control display power circuit, select internal regulator resistor ratio for V0 voltage regulation, electronic volume, set static indicator state.
- H/W and S/W reset available
- Static drive circuit equipped internally for indicators with 4 flashing modes
Built-in Analog Circuit
- On-chip oscillator circuitfor display clock (external clock can also be used)
- High performance voltage converter (with booster ratios of x2, x3, x4 and x5, where the step-up reference voltage can be used externally)
- High accuracy voltage regulator (temperature coefficient: -0.05%/°Cor external input)
- Electronic contrast control function (64 steps)
- Vref = 2.1V ±3% (V0 voltage adjustment voltage)
- High performance voltage follower (V1 to V4 voltage divider resistors and OP-Amp for increasing drive capacity)
Operating Voltage Range
- Supply voltage (VDD): 2.4to 3.6V
- LCD driving voltage (VLCD= V0 - VSS): 4.5to 15.0 V
Low Power Consumption
- Operating power: 40mA typical. (condition: VDD= 3V, x 4 boosting (VCI is VDD), V0 = 11V, internal power supply ON, display OFFand normal mode is selected)
- Standby power: 10mAmaximum. (during power save[standby] mode)
Operating Temperatures
- Wide range of operating temperatures : -40 to 85°C
CMOS Process
Package Type
- Gold bumped chip