tl0324s Newhaven Display International, Inc, tl0324s Datasheet - Page 5

• Manufacturer Part Number: tl0324s
• Description: 65com / 132seg Driver & Controller For Stn Lcd
• Manufacturer: Newhaven Display International, Inc

4. PIN DESCRIPTION
Table 4-1. Pin description
TOMATO LSI Inc.
LCD driver power supply
Power supply
Name
VEXT
VDD
V
VSS
REF
C1+
C2+
C3+
C4+
VCI
C1-
C2-
VR
V0
V1
V2
V3
V4
OUT
TL0324S
supply
Power
I/O
I/O
I/O
O
I
I
I
I
Shared with the MPU power supply terminal VCC.
This is a 0V terminal connected to the system GND.
Main VSS pad (PAD No. 43,44,45,46 and 47) have to be connected
Capacitor1+ positive connection pin for the voltage converter
Capacitor1- negative connection pin for voltage converter
Capacitor2+ positive connect ion pin for voltage converter
Capacitor2- negative connection pin for voltage converter
Capacitor3+ positive connection pin for voltage converter
Capacitor4+ positive connection pin for voltage converter
Voltage converter input / output pin
Connect this pin to VSS through capacitor.
V0 voltage adjustment pin. It is valid only when using external resistors.(INTRS=”L”)
This is the reference voltage for the voltage converter circuit for the LCD drive.
Whether internal voltage converter use or not use, this pin should be fixed.
The voltage should have the following range: 2.4V ≤ VCI ≤ 3.6V
This is the externally input reference voltage (V
It is valid only when external V
When using internal V
Select the external V
-REF = “L”: using the external V
-
The voltage is determined by the LCD pixel impedance-converted for application by an
operational amplifier.
Voltage have the following relationship: V0 >V1>V2>V3>V4>VSS(GND)
When the on-chip power circuit is active, these voltages are generated according
to the state of LCD bias, as shown in the table below.
REF
=
LCD Bias
1/9 bias
1/8 bias
1/7 bias
1/6 bias
1/5 bias
“H”: using the internal V
REF
REF
(8/9) x V0
(7/8) x V0
(6/7) x V0
(5/6) x V0
(4/5) x V0
voltage via VEXT pin
, this pin is Open
V1
REF
5
REF
65COM / 132SEG DRIVER & CONTROLLER FOR STN LCD
REF
is used (REF = “L”).
Description
(7/9) x V0
(6/8) x V0
(5/7) x V0
(4/6) x V0
(3/5) x V0
V2
REF
) for the internal voltage regulator.
(2/9) x V0
(2/8) x V0
(2/7) x V0
(2/6) x V0
(2/5) x V0
V3
(1/9) x V0
(1/8) x V0
(1/7) x V0
(1/6) x V0
(1/5) x V0
V4
Ver 0.1