ST7636R
65K Color Dot Matrix LCD Controller/Driver
Product Description
The ST7636R is a driver & controller LSI for 65K color graphic dot-matrix liquid crystal display systems. It generates 396
Segment and 132 Common driver circuits. This chip is connected directly to a microprocessor, accepts Serial Peripheral
Interface (SPI) or 8-bit/16-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.
Features - Driver Output Circuits
-396 segment outputs / 132 common outputs
- Applicable Duty Ratios
-Various partial display
-Partial window moving & data scrolling
- Gray-Scale Display
-4FRC & 31 PWM function circuit to display
-64 gray-scale display.
- On-chip Display Data RAM
-Capacity: 132 x 132 x 16 =278,784bits
-4K colors (RGB)=(444) mode
-65K colors (RGB)=(565) mode
-Truncated 262K colors (RGB)=(666) mode
-Truncated 16M colors (RGB)=(888) mode
- Microprocessor Interface
-8/16-bit parallel bi-directional interface with 6800-series or 8080-series
-4-line serial interface (4-line-SIF)
-3-line serial interface (3-line-SIF)
- On-chip Low Power Analog Circuit
-On-chip oscillator circuit
-Voltage converter (x2, x3, x4, x5, x6, x7, x8)
-Voltage regulator (temperature gradient -0.15%/C)
-On-chip electronic contrast control function (406 steps)
-Voltage follower (LCD bias: 1/5 to 1/12)
- Operating Voltage Range
-Supply voltage (VDD, VDD1): 1.8 to 3.3V
(VDD2, VDD3, VDD4, VDD5): 2.4 to 3.3V
-LCD driving voltage (VOP = V0 - VSS): 3.76 to 18.0 V
-The suggested value of V0 is 12~15 V under bias =1/11 or 1/12
- LCD Driving Voltage (EEPROM)
-To store contrast adjustment value for better display
-To store adjustment value for best crosstalk performance
- EEPROM Adjustment Voltage
-When writing value to EEPROM, VDD2~VDD5 must follow as:
When Booster x6: VDD2~VDD5 =3.3V
When Booster x7: VDD2~VDD5 =2.8V~3.0V
and Booster:ON, Regulator: OFF, Follower: OFF, Display OFF (refer EEPROM flow, page.43 , page.104)
- Package Type
-Application for COG
Downloads
| File |
Size |
Version |
Creation Date |
Datasheet | 1350K | V1.4 | 2006/09/07 | |
|