HD66740 Datasheet, PDF (5/95 Pages) Hitachi Semiconductor – 112 x 80-dot Graphics LCD Controller/Driver

HD66740 Block Diagram
RESET*
TEST
Instruction register
(IR)
OSC1 OSC2
CPG
Instruction
decoder
Timing generator
HD66740
8
IM2-1
IM0/ID
CS*
RS
E/WR*/SCL
RW/RD*/SDA
DB0-DB7
System
interface
- Clock
synchro-
nized
serial
8 _Data
- I2C bus
register
- 4-bit bus
(DR)
- 8-bit bus
Address
counter
(AC)
8
10
80-bit bidirectional
common shift register
Common
driver
COM1/80—
COM80/1
112-bit
segment
shift
112-bit
latch
circuit
SEG1/112—
Segment ^SEG112/1
driver
register
Vci
C1+
C1-
C2+
C2-
C3+
C3-
C4+
C4-
VLOUT
Vcc
VTEST1—
VTEST3
VLCD
Triple to
five-times
booster
Character
generator RAM
(CGRAM)
1,120 bytes
8
Parallel/serial converter
Contrast adjuster
Drive bias controller
+-
VR
+-
R
+-
R
+-
R0
+-
R
OPOFF
V1OUT
V2OUT V3OUT V4OUT V5OUT _GND
LCD drive
voltage
selector
5