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