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New Japan Radio
New Japan Radio

NJU6854 Datasheet Preview

NJU6854 Datasheet

132COMMON x 132RGB LCD DRIVER

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NJU6854 pdf
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NJU6854
132COMMON x 132RGB LCD DRIVER
FOR 65,536-COLOR STN DISPLAY
! GENERAL DESCRIPTION
The NJU6854 is a 132COMMON x 132RGB LCD driver for
65,536-color STN display. It contains common drivers, RGB drivers, a
serial and a parallel MPU interface circuit, an internal LCD power supply,
grayscale palettes and 278,784-bit display data RAM. The segment
drivers for RGB (Red, Green, Blue) independently produce optimum 64
or 32 grayscales from a built-in grayscale palette, and the LSI achieves
65,536 colors (64x32x32).
In addition, the NJU6854 operates with a low voltage of 1.7V and a
low operating current, therefore it is ideally suited for battery-powered
handheld applications.
PACKAGE
BUMP CHIP
! FEATURES
# 65,536-color STN LCD driver
# Built-in LCD Drivers
: 132-common x 132RGB (396-segment drivers)
# Built-in Display Data RAM (DDRAM) : 278,784 bits for Graphic Display
# Programmable Display Mode
- 64 grayscales(Green)
- 32 grayscales(Red, Blue)
# 3 Areas Partial Display
# 8-/16-bit Parallel Interface Selectable
# 8-/16-bit Bus Length for Display Data Selectable
# 3-/4-line Serial Interface Selectable
# Programmable Duty Ratio and Bias Ratio
# Programmable Internal Voltage Booster : Maximum 6 times
# Programmable Contrast Control
: 128-step Electronic Volume Register (EVR)
# Various Useful Instructions
# Low Operating Current
# Low Logic Voltage
: 1.7V to 3.3V
# Wide LCD Voltage Range
: 5.0V to 18.0V
# C-MOS Technology
# Slim Chip for COG
# Package
: Bump Chip
Ver.2004-06-29
-1-



New Japan Radio
New Japan Radio

NJU6854 Datasheet Preview

NJU6854 Datasheet

132COMMON x 132RGB LCD DRIVER

No Preview Available !

NJU6854 pdf
NJU6854
TABLE OF CONTENTS
! GENERAL DESCRIPTION
PACKAGE........................................................................................... 1
! FEATURES ................................................................................................................................................... 1
! PAD LOCATION............................................................................................................................................ 4
! PAD COORDINATES.................................................................................................................................... 6
! BLOCK DIAGRAM ..................................................................................................................................... 12
! LCD POWER SUPPLY BLOCK DIAGRAM ............................................................................................... 13
! TERMINAL DESCRIPTION ........................................................................................................................ 14
! FUNCTIONAL DESCRIPTION ................................................................................................................... 17
(1) MPU INTERFACE.................................................................................................................................... 17
(1-1) Selection of Parallel/Serial Interface Mode....................................................................................................................17
(1-2) Selection of MPU Mode.................................................................................................................................................17
(1-3) Data Recognition ...........................................................................................................................................................17
(1-4) Selection of 3-/4-line Serial Interface Mode...................................................................................................................17
(1-5) 4-line Serial Interface Mode...........................................................................................................................................17
(1-6) 3-line Serial Interface Mode...........................................................................................................................................18
(1-7) Data Write......................................................................................................................................................................19
(1-8) Data Read .....................................................................................................................................................................21
(1-9) Selection of 8-/16-bit Bus Length (Parallel Interface Mode) ..........................................................................................22
(2) INITIAL DISPLAY LINE............................................................................................................................ 22
(3) DDRAM.................................................................................................................................................... 23
(3-1) DDRAM Address Range................................................................................................................................................23
(3-2) Window Area for DDRAM Access..................................................................................................................................23
(3-3) DDRAM Access Direction..............................................................................................................................................24
(3-4) Segment Shift Direction.................................................................................................................................................26
(3-5) Block Diagram of DDRAM and Peripheral Circuit..........................................................................................................26
(3-6) DDRAM Mapping...........................................................................................................................................................27
(3-6-1) (REW, SWAP) = (0,0), SHIFT1 = “0”, SHIFT0 = “0”, VPC = "84H“ (1/132 Duty), FVC = "00H", HCT = “00H”,
SSC1 and SSC2 = “0”, EN3PTL = “0”................................................................................................................................27
(3-6-2) (REW, SWAP) = (0,0), SHIFT1 = “0”, SHIFT0 = “0”, VPC = "70H“ (1/112 Duty), FVC = "00H", HCT = “0AH”,
SSC1 and SSC2 = “0”, EN3PTL = “0”................................................................................................................................28
(3-7) The Relationship among Bit Assignment, X address and Segment Driver ....................................................................29
(4) PWM CONTROL...................................................................................................................................... 36
(5) FRAME RATE CONTROL(FRC) ............................................................................................................. 36
(6) DISPLAY TIMING GENERATOR............................................................................................................. 36
(7) DATA LATCH CIRCUIT............................................................................................................................ 36
(8) COMMON DRIVERS AND SEGMENT DRIVERS .................................................................................. 37
(9) OSCILLATOR........................................................................................................................................... 38
(10) LCD POWER SUPPLY ............................................................................................................................ 38
(10-1) Voltage Booster ...........................................................................................................................................................39
(10-2) Electrical Volume Register (EVR) ................................................................................................................................39
(10-3) Voltage Converter........................................................................................................................................................40
(10-3-1) Voltage Regulator .............................................................................................................................................40
(10-3-2) Reference Voltage Generator ...........................................................................................................................41
(10-3-3) LCD Bias Voltage Generator.............................................................................................................................41
(10-4) External Components for LCD Power Supply..............................................................................................................42
(10-5) Power ON/OFF............................................................................................................................................................45
(10-6) Discharge Circuit .........................................................................................................................................................45
(10-7) Reset Function ............................................................................................................................................................46
(11) INSTRUCTION TABLES.......................................................................................................................... 47
(12) INSTRUCTION DESCRIPTIONS ............................................................................................................ 51
(12-1) 8-bit Access Mode .......................................................................................................................................................51
(12-1-1) Instruction Register...........................................................................................................................................51
-2-
Ver.2004-06-29


Part Number NJU6854
Description 132COMMON x 132RGB LCD DRIVER
Maker New Japan Radio
Total Page 30 Pages
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