LCD
Panel
Common
Electrode
Drive
Circuit
Segment
Electrode
Drive
Circuit
Display
Data
Signals
4
Scanning
Signals
3
LED
back-
light
V
LED
V
LSS
4
EL
back-
light
EL
Inverter
(See note 2)
5 V
Timing
Generator
Cursor/Blink
Controller
3
3
7
7
7
Display Data
RAM
(DD RAM)
80 x 8 bits
Address
Counter
(AC)
7
7
7
Instruction
Decoder
Instruction
Register (/R)
8
Character
Generator
ROM
(CG ROM)
7,200 bits
8
8
Character
Generator
ROM
(CG ROM)
512 bits
7
8
Parallel-to-Serial
Converter
5
5
Bias
Voltage
Generator
(See Note 1)
6
Data Register
(DR)
8
I/O Buffer
8
Busy
Flag (BF)
7
8
RS R/W E
4
4
DB
4
- DB
7
DB
0
- DB
3
V
DD
V
O
V
SS
LCD27-6
NOTES:
1. LM16152 incorporates a temperature compensation circuit
within the bias voltage generator. See table 12.
2. For the inverters of EL backlights, please contact your
representative.
Figure 1. Functional Block Diagram
Dot-Matrix LCD Units
Display Unit User’s Manual
7
