hd66740 Renesas Electronics Corporation., hd66740 Datasheet - Page 5
hd66740
Manufacturer Part Number
hd66740
Description
112 X 80-dot Graphics Lcd Controller/driver - Hitachi Semiconductor
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.HD66740.pdf
(95 pages)
- Current page: 5 of 95
- Download datasheet (2Mb)
HD66740 Block Diagram
E/WR*/SCL
RW/RD*/SDA
DB0-DB7
VLOUT
VTEST1—
VTEST3
V
IM0/ID
Vcc
LCD
IM2-1
Vci
RESET*
C1+
C1-
C2+
C2-
C3+
C3-
C4+
C4-
CS*
RS
TEST
System
interface
- Clock
synchro-
nized
serial
- I2C bus
- 4-bit bus
- 8-bit bus
OPOFF
five-times
Contrast adjuster
Triple to
booster
Instruction register
VR
8
(IR)
8
+ -
register
V1OUT
Data
(DR)
Parallel/serial converter
R
generator RAM
+ -
1,120 bytes
Character
(CGRAM)
8
V2OUT
Instruction
decoder
Address
counter
(AC)
8
R
OSC1
10
Drive bias controller
+ -
CPG
V3OUT
5
OSC2
R
0
+ -
V4OUT
Timing generator
R
+ -
V5OUT
segment
register
112-bit
shift
GND
112-bit
80-bit bidirectional
common shift register
circuit
latch
Common
driver
Segment
LCD drive
selector
voltage
driver
HD66740
COM1/80—
COM80/1
SEG1/112—
SEG112/1
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