HD40L4814H PDF даташит
Спецификация HD40L4814H изготовлена «Hitachi Semiconductor» и имеет функцию, называемую «16-digit LCD driver». |
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Детали детали
Номер произв | HD40L4814H |
Описание | 16-digit LCD driver |
Производители | Hitachi Semiconductor |
логотип |
30 Pages
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HD44780U (LCD-II)
(Dot Matrix Liquid Crystal Display Controller/Driver)
Description
The HD44780U dot-matrix liquid crystal display controller and driver LSI displays alphanumerics,
Japanese kana characters, and symbols. It can be configured to drive a dot-matrix liquid crystal display
under the control of a 4- or 8-bit microprocessor. Since all the functions such as display RAM, character
generator, and liquid crystal driver, required for driving a dot-matrix liquid crystal display are internally
provided on one chip, a minimal system can be interfaced with this controller/driver.
A single HD44780U can display up to one 8-character line or two 8-character lines.
The HD44780U has pin function compatibility with the HD44780S which allows the user to easily
replace an LCD-II with an HD44780U. The HD44780U character generator ROM is extended to generate
208 5 × 8 dot character fonts and 32 5 × 10 dot character fonts for a total of 240 different character fonts.
The low power supply (2.7V to 5.5V) of the HD44780U is suitable for any portable battery-driven
product requiring low power dissipation.
Features
• 5 × 8 and 5 × 10 dot matrix possible
• Low power operation support:
2.7 to 5.5V
• Wide range of liquid crystal display driver power
3.0 to 11V
• Liquid crystal drive waveform
A (One line frequency AC waveform)
• Correspond to high speed MPU bus interface
2 MHz (when VCC = 5V)
• 4-bit or 8-bit MPU interface enabled
• 80 × 8-bit display RAM (80 characters max.)
• 9,920-bit character generator ROM for a total of 240 character fonts
208 character fonts (5 × 8 dot)
32 character fonts (5 × 10 dot)
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HD44780U
• 64 × 8-bit character generator RAM
8 character fonts (5 × 8 dot)
4 character fonts (5 × 10 dot)
• 16-common × 40-segment liquid crystal display driver
• Programmable duty cycles
1/8 for one line of 5 × 8 dots with cursor
1/11 for one line of 5 × 10 dots with cursor
1/16 for two lines of 5 × 8 dots with cursor
• Wide range of instruction functions:
Display clear, cursor home, display on/off, cursor on/off, display character blink, cursor shift,
display shift
• Pin function compatibility with HD44780S
• Automatic reset circuit that initializes the controller/driver after power on
• Internal oscillator with external resistors
• Low power consumption
Ordering Information
Type No.
Package
HD44780UA00FS
HCD44780UA00
HD44780UA00TF
HD44780UA02FS
HCD44780UA02
HD44780UA02TF
FP-80B
Chip
TFP-80F
FP-80B
Chip
TFP-80F
HD44780UBxxFS
HCD44780UBxx
HD44780UBxxTF
FP-80B
Chip
TFP-80F
Note: xx: ROM code No.
CGROM
Japanese standard font
European standard font
Custom font
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HD44780U
HD44780U Block Diagram
Reset
circuit
ACL
OSC1 OSC2
CPG
Timing
generator
CL1
CL2
M
Instruction
register (IR)
8
7
MPU
RS inter-
R/W face
E
Instruction
decoder
Display
data RAM
(DDRAM)
80 × 8 bits
D
16-bit
shift
register
Common
signal
driver
COM1 to
COM16
Address
7
DB4 to
counter
7
8
DB7
7
Input/ 8 Data
8
DB0 to output
register
DB3 buffer
(DR)
88
Busy
flag
40-bit
shift
register
40-bit
latch
circuit
Segment
signal
driver
SEG1 to
SEG40
40
LCD drive
voltage
selector
GND
VCC
Character
generator
RAM
(CGRAM)
64 bytes
Character
generator
ROM
(CGROM)
9,920 bits
Cursor
and
blink
controller
55
Parallel/serial converter
and
attribute circuit
V1 V2 V3 V4 V5
169
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HD40L4814H | 16-digit LCD driver | Hitachi Semiconductor |
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DataSheet26.com | 2020 | Контакты | Поиск |