HD66760 PDF даташит
Спецификация HD66760 изготовлена «Hitachi Semiconductor» и имеет функцию, называемую «104 x 80-dot Graphics LCD Controller/Driver». |
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Детали детали
Номер произв | HD66760 |
Описание | 104 x 80-dot Graphics LCD Controller/Driver |
Производители | Hitachi Semiconductor |
логотип |
30 Pages
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HD66760
104 × 80-dot Graphics LCD Controller/Driver for 256 Colors
ADE-207-335A(Z)
Rev.2.0
September 2001
Description
The HD66760, color-graphics LCD controller and driver LSI, displays 104-by-80-dot graphics for 256 STN
colors. The HD66760's bit-operation functions and a 16-bit high-speed bus interface enable efficient data
transfer and high-speed rewriting of data to the graphics RAM.
The HD66760 has various functions for reducing the power consumption of an LCD system, such as low-
voltage operation of 2.2 V/min., a step-up circuit to generate a maximum of six-times the LCD drive voltage
from the supplied voltage, and voltage-followers to decrease the direct current flow in the LCD drive bleeder-
resistors. Combining these hardware functions with software functions, such as a partial display with low-
duty drive and standby and sleep modes, allows precise power control. The HD66760 is suitable for any mid-
sized or small portable battery-driven product requiring long-term driving capabilities, such as digital cellular
phones supporting a WWW browser, bidirectional pagers, and small PDAs.
Features
• 104 × 80-dot graphics display LCD controller/driver for 256 STN colors
• Display mode change between 256 colors (8 bits per pixel) and four colors (2-bit per pixel)
• 16/8-bit high-speed bus interface
• I2C bus interface
• Clock synchronized serial interface
• Bit-operation functions for graphics processing:
Write-data mask function in bit units
Swap function of upper and lower bytes
Logical operation in pixel unit and conditional write function
• Various color-display control functions:
256 of the 4,096 possible colors can be displayed at the same time (grayscale palette incorporated)
Vertical scroll display function in raster-row units
Color window cursor display supported by hardware
• Low-power operation supports:
Preliminary: The specifications of this device are subject to change without notice. Please contact your
nearest Hitachi’s Sales Dept. regarding specification.
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HD66760
Vcc = 2.2 to 3.6 V (low voltage)
VLCD (= VLPS – GND) = 5 to 15.5 V (liquid crystal drive voltage)
Three-, four-, five-, or six-times step-up circuit for liquid crystal drive voltage
128-step contrast adjuster and voltage followers to decrease direct current flow in the LCD drive
bleeder-resistors
Power-save functions such as the standby mode and sleep mode
Partial LCD drive of two screens in any position
Programmable drive duty ratios (1/16-1/80) and bias values (1/4-1/10) displayed on LCD
• Internal RAM capacity: 8,320 bytes
• 312-segment × 80-common liquid crystal display driver
• n-raster-row AC liquid-crystal drive (C-pattern waveform drive)
• Internal oscillation, hardware reset and software reset
• Shift change of segment and common drivers
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HD66760
Total Current Consumption Characteristics (Vcc = 3.0 V, TYP Conditions, LCD
Drive Power Current Included)
Total Power Consumption
Normal Display Operation
Character
Display Dot
Size
R-C
Duty Oscillation Frame
Internal
Ratio Frequency Frequency Logic
LCD
Power
Total*
Standby
Mode
104 × 16 dots 1/16 180 kHz 70 Hz
(50 µA)
(25 µA)
Four-times 0.2 µA
(150 µA)
104 × 24 dots 1/24 180 kHz 70 Hz
(60 µA)
(25 µA)
Four-times
(160 µA)
104 × 56 dots 1/56 180 kHz 70 Hz
(100 µA) (25 µA)
Five-times
(225 µA)
104 × 64 dots 1/64 180 kHz 70 Hz
(110 µA) (25 µA)
Five-times
(235 µA)
104 × 72 dots 1/72 180 kHz 70 Hz
(120 µA) (25 µA)
Six-times
(270 µA)
104 × 80 dots 1/80 180 kHz 70 Hz
(130 µA) (25 µA)
Six-times
(280 µA)
Note : When a three-, four-, five-, or six-times step-up is used:
the total power consumption = internal logic current + LCD power current x 3 (three-times step-up),
the total power consumption = internal logic current + LCD power current x 4 (four-times step-up),
the total power consumption = internal logic current + LCD power current x 5 (five-times step-up), and
the total power consumption = internal logic current + LCD power current x 6 (six-times step-up)
Type Name
Types
HD66760TB0
HD66760WTxx
HCD66760BP
HCD66760WBP
External Dimensions
Bending TCP
Bending TCP
Au-bumped chip
Au-bumped chip
Interface
Parallel and clock synchronized serial interface
Parallel and I2C interface
Parallel and clock synchronized serial interface
Parallel and I2C interface
3
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