參數(shù)資料
型號: HD44780UBxxTF
廠商: Hitachi,Ltd.
英文描述: 320 x 240 pixel format, LED or CFL Backlight
中文描述: 點陣式液晶顯示控制器/驅(qū)動器
文件頁數(shù): 3/59頁
文件大小: 316K
代理商: HD44780UBXXTF
HD44780U
3
HD44780U Block Diagram
Display
data RAM
(DDRAM)
80
×
8 bits
Character
generator
ROM
(CGROM)
9,920 bits
Character
generator
RAM
(CGRAM)
64 bytes
Instruction
register (IR)
Timing
generator
Common
signal
driver
16-bit
shift
register
Segment
signal
driver
40-bit
latch
circuit
40-bit
shift
register
Parallel/serial converter
and
attribute circuit
LCD drive
voltage
selector
Address
counter
MPU
inter-
face
Input/
output
buffer
Data
register
(DR)
Cursor
and
blink
controller
CPG
CL1
CL2
M
D
RS
R/W
E
DB4 to
DB7
Instruction
decoder
OSC1 OSC2
COM1 to
COM16
SEG1 to
SEG40
8
8
8
7
40
5
5
7
8
7
8
7
V
CC
GND
V1
V2
V3
V4
V5
DB0 to
DB3
Reset
circuit
ACL
8
Busy
flag
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