S6A2068 Datasheet, PDF (2/22 Pages) Samsung semiconductor – 16COM/60SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD

S6A2068
BLOCK DIAGRAM
16COM/60SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD
Power V1
Supply V2
for V3
LCD V4
Drive V5
Parallel/Serial
Data Conversion Circuit
5
5
DB4-DB7 4
DB0-DB3 4
R/W
RS
E
OSC1
OSC2
Busy
Flag
Character
Generator
ROM
(CGROM)
8320 bits
Character
Generator
RAM
(CGRAM)
512 bits
Cursor
& Blink
Controller
Circuit
Input/
Output
Buffer
8 ^Data
8
8
Register
(DR)
8
7
8
Instruction
Register
8
(IR)
Instruction
Decoder
(ID)
7
Display
7 _{Data RAM}
(DDRAM)
7 ^{80x8 bits}
Address
Counter (AC)
7
7
Timing
Generator
Circuit
60-bit ₆₀ 60-bit ₆₀ Seg- ₆₀
Shift
Latch
ment
Register Circuit Driver ^S1-S60
D
16-bit ₁₆
Shift
Register
Common
Driver
16
Common
C1-C16
CLK1
CLK2
M
VDD
GND
Figure 1. S6A2068 Block Diagram
2