S6A0079 Datasheet, PDF (6/36 Pages) Samsung semiconductor – 34COM/120SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD

S6A0079
34COM/120SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD
PAD DESCRIPTION
Pad (No)
VDD (60)
VSS1, VSS2
(66, 81)
V1-V5
(88-84)
Vci (78)
SEG1-SEG120
(1-42, 106-183)
COM0-COM33
(105-89, 43-59)
OSC1, OSC2
(61, 62)
C1,C2
(80, 79)
RESET (63)
TEST1 (65)
V5OUT2 (82)
V5OUT3 (83)
TEST2 (64)
RS (67)
Input/
Output
-
Table 2. Pad Description
Name
Description
Power supply For logical circuit (+3V, +5V)
0V (GND)
Bias voltage level for LCD driving
Interface
Power supply
Input
Output
Output
Input
(OSC1),
Output
(OSC2)
Input
Input
Input
Output
Input
Input
Segment
output
Common
output
Oscillator
External
capacitance
input
Reset pin
Test pin
Two times
converter
output
Three times
converter
output
Test pin
Register
select
Input voltage to the voltage converter to
generate LCD drive voltage
(Vci = 1.0 - 4.5V).
Segment signal output for LCD drive
LCD
Common signal output for LCD drive
LCD
When use internal oscillator, connect
external Rf resistor.
If external clock is used, connect it to
OSC1.
External
resistor/oscillator
(OSC1)
To use the voltage converter (2 times /3
times), these pins must be connected to the
external capacitance.
External
capacitance
Initialized to low
-
When TEST1 = "High", Test mode
-
When TEST1 = "Low", Normal operation
mode
This pin must be set to V_SS
The value of Vci is converted two times.
To use three times converter, the same
capacitance as that of C1-C2 should be
connected here.
V5 capacitance
The value of Vci is converted three times.
V5
When TEST2 = "High" : Normal mode
When TEST2 = "Low": Test mode
This pin must be set to V_DD
Register selection input
In RS = "High", Data register is selected.
In RS = "Low", Instruction register is
selected.
-
MPU
6