S6A2068 Datasheet, PDF (6/22 Pages) Samsung semiconductor – 16COM/60SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD

S6A2068
16COM/60SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD
PIN DESCRIPTION
Table 2. S6A2068 Pin Description
PIN (No).
V_DD(42)
V_SS(GND) (27)
V1-V5(30-34)
S1-S60
(1-26, 67-100)
C1-C16 (51-66)
OSC1, OSC2
(29) (28)
CLK1 (35)
CLK2 (36)
M (37)
D (38)
E (41)
R/W (40)
RS (39)
DB0-DB7
(43-50)
I/O
Power
Output
Name
Power supply
Segment output
Description
for logical circuit (2.7V to 5.5V)
0V (GND)
Bias voltage level for LCD driving
Segment signal output for LCD driving
Interface
Power
Supply
LCD
Output
Input
(OSC1)
Output
(OSC2)
Output
Input
Input/
Output
Common output Common signal output for LCD driving
LCD
Oscillator
Both pin connected to Rf resistor for internal
oscillator circuit. In case of external frequency
use only, the frequency is input to OSC1
terminal.
Resistor
Data latch clock Clock output terminal for the serially transferred S6A0065 or
data to be latched to the driver.
Data shift clock Clock output terminal used when D terminal
data output shifts the inside of the driver.
S6A2067
Alternated signal The alternating signal to convert LCD drive
for LCD driver
waveform to AC.
output
Display data
interface
Character pattern data, which is corresponding
to each common signal, is supplied to driver
serially.
Read/Write
Enable
Start enable signal to read or write the data
MPU
Read/Write
R/W signal input is used to select the
read/write mode
Register select register selection input
Data interface
Used for data transfer between the MPU and
S6A2068. These terminals are for data bus with
bi-directional three-state. First 4-bit (DB0-DB3)
are not used during 4-bit operation (DB7 can be
used as a busy flag).
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