PCF8833

General description

The PCF8833 is a single chip low power CMOS LCD controller driver, designed to drive colour Super-Twisted Nematic (STN) displays of 132 rows and 132 RGB columns. All necessary functions for the display are provided in a single chip, including display RAM which has a capacity of 209 kbit (132 x 12-bit x 132). The PCF8833 uses the Multiple Row Addressing (MRA) driving technique in order to achieve the best optical performance at the lowest power consumption. The PCF8833 offers 2 types of microcontroller interfaces namely the 8080 system interface and the 3-line serial interface.

Features

• Single chip LCD controller and driver
• 132 rows and 396 column outputs (132 x RGB)
• Low cross talk by Frame Rate Control (FRC)
• 4 kbyte colours (RGB) = 4 : 4 : 4 mode
• 256 colours (RGB) = 3 :3 :2 mode using the 209 kbit RAM and a Look-Up Table (LUT)
• 65 kbyte colours (RGB) = 5 : 6 : 5 mode using the 209 kbit RAM with dithering
• 8 colours Power-save mode
• Display data RAM 132 x 132 (RGB) (4 kbyte colour)
• Interfaces:
• 3-line serial interface
• 8-bit 8080 Intel CPU interface.
• Display features:
• Area scrolling
• 32-line partial Display mode
• Software programmable colour depth mode
• N-line inversion for low cross talk.
• On-chip:
• Oscillator for display system, requires no external components (external clock also possible)
• Generation of V_LCD
• Segmented temperature compensation of V_LCD and frame frequency.
• Logic supply voltage range V_DD1 to V_SS1 :
• 1.5 to 3.3 V.
• Analog supply voltage range for V_LCD generation V_DD2 to V_SS2 :
• 2.4 to 4.5 V.
• Analog supply voltage range for reference voltage generation V_DD3 to V_SS1 :
• 2.4 to 3.5 V.
• Display supply voltage range V_LCD to V_SS1 :
• 3.8 to 20 V.
• Low power consumption; suitable for battery operated systems
• CMOS compatible inputs
• Manufactured in silicon gate CMOS process
• Optimized layout for COF, Chip On Glass (COG) and Transformer Coupled Plasma (TCP) assembly.

Block diagrams/pinning

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