ST
Sitronix
1 INTRODUCTION
ST7669V
262K 132
x
162 Color Dot Matrix LCD Controller/Driver
The ST7669V is a driver & controller LSI for 262K color graphic dot-matrix liquid crystal display systems. It generates 396
segments and 162 Common driver circuits. This chip is connected directly to a microprocessor, accepts Serial Peripheral
Interface or 8-bit/16-bit/18-bit parallel display data and stores in an on-chip display data RAM. It 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.
2 FEATURES
Driver Output Circuits
♦
396 segment outputs / 162 common outputs
On-chip Low Power Analog Circuit
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On-chip oscillator circuit and voltage regulator
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Voltage converter (x1, x2, x3, x4, x5, x6, x7, x8) with
internal booster capacitors.
♦
Extremely few outsider components. (Required outsider
components: 3 Capacitors)
♦
On-chip electronic contrast control function
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Voltage follower
(LCD bias: 1/5, 1/7, 1/9, 1/10, 1/11, 1/12, 1/13, 1/14)
Applicable Duty Ratios
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Various partial display
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Partial window moving & data scrolling
Gray-Scale Display
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4FRC & 31 PWM function circuit to display 64 gray-scale
display
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Support 8 color mode (Idle mode)
On-chip Display Data RAM
♦
Capacity: 132 x 162 x 18 = 384,912 bits
Operating Voltage Range
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Supply Digital Voltage (VDD): 1.65V to 3.0V
♦
Supply Analog Voltage (VDD2, VDD3, VDD4, VDD5):
2.4 to 3.3V
♦
LCD driving voltage (VOP = V0 - VSS): Max: 18V
Color support by Interface
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256 color mode(RGB)=(332) mode
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4k colors (RGB)=(444) mode
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65K colors (RGB)=(565) mode
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262K colors (RGB)=(666) mode
LCD Driving Voltage (OTPC)
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Contrast Adjustment Value is stored in the built-in
OTP-ROM for better display quality
Microprocessor Interface
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8/16/18-bit parallel bi-directional interface with
6800-series or 8080-series
♦
3-line (9-bits) , 4-line(8-bits) serial interface
LCD Driving Setting Suggestion
♦
Bias = 1/9, Vop = 15V
♦
Bias = 1/10 or 1/11, Vop = 16.5V
Package Type
♦
Application for COG
ST7669V-G3
ST7669V-G4
Chip thickness=400um
Chip thickness=300um
6800, 8080 ,
4-Line, 3-Line interface
Sitronix Technology Corp. reserves the right to change the contents in this document without prior notice.
Ver 1.3
1/208
6/4/2008