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전자부품 반도체 검색엔진( 무료 PDF 다운로드 ) - 데이터시트뱅크

HCD44780 데이터 시트보기 (PDF) - Hitachi -> Renesas Electronics

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HCD44780
Hitachi
Hitachi -> Renesas Electronics Hitachi
HCD44780 Datasheet PDF : 60 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
HD44780U Block Diagram
HD44780U
OSC1 OSC2
CL1
CL2
Reset
M
circuit
ACL
CPG
Timing
generator
Instruction
7
register (IR)
8
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
8
7
DB7
7
Input/ 8 Data
8
DB0 to output
register
DB3
buffer
(DR)
8
8
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
5
5
Parallel/serial converter
and
attribute circuit
V1 V2 V3 V4 V5
3

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