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T66H0004A Datasheet(PDF) 6 Page - Taiwan Memory Technology

Part No. T66H0004A
Description  80 output LCD Segment/Common Driver IC
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Manufacturer  TMT [Taiwan Memory Technology]
Direct Link  http://www.tmtech.com.tw
Logo TMT - Taiwan Memory Technology

T66H0004A Datasheet(HTML) 6 Page - Taiwan Memory Technology

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T66H0004A
TM Technology Inc. reserves the right
P. 6
Publication Date: MAR. 2004
to change products or specifications without notice.
Revision:A
tmTE
CH
PIN DESCRIPTION
Pin
I/O
Name
Function
Interface
VDD
Logical “High” input port(+5V±10%,+3V±10%)
Vss
0V(GND)
VEE
Power supply
Logical “Low” for high voltage part
Power
V0,V12,
V43,V5
I
LCD driver
output voltage
level
Bias supply voltage input to drive the LCD. Bias
voltage divided by the resistance is usually used as a
supply voltage source (refer to NOTE 2).
Power
SC1-SC80
O
LCD driver
output
Display data output pin which corresponds to the
respective latch contents. One of V0, V12, V34 and V5
is selected as a display driving voltage source
according to the combination of the latch data level
and M signal (refer to NOTE 1).
LCD
CL2
I
Data shift
clock
Clock pulse input for the bi-directional shift register.
- In segment driver application mode, the data is
shifted to 20x4-bit segment data shift.
The clock pulse, which was input when the enable bit
(ELB/ERB) is in not active condition, is invalid.
- In common driver application mode, the data is
shifted to 80-bit common data bi-directional shift
register by the CL1 clock.
Hence, this clock pin is not used (Open or connect this
pin to VDD).
Controller
M
I
AC signal for
LCD driver
output
Alternate signal input pin for LCD driving.
Normal frame inversion signal is input in to this pin.
Controller
CL1
I
Data latch
clock
- In segment driver application mode, this signal is
used for latching the shift register contents at the
falling edge of this clock pulse.
CL1
pulse
“High”
level
initializes
power-down
function block.
- In common driver application mode, CL1 is used as a
shifting clock of common output data.
Controller
DISPOFFB
I
Display OFF
control
Control input pin to fix the driver output (SC1-SC80)
to V0 level, during “Low” value input. LCD becomes
non-selected by V0 level output from every output of
segment drivers and every output of common drivers.
Controller
CS
I
COM/SEG
mode control
When CS = ”Low”, T66H0004A is used as an 80-bit
segment driver.
When CS = ”High”, T66H0004A is set to an 80-bit
common driver.
VDD/VSS
According to the input value of the AMS and the CS
pin, application mode of T66H0004A is differs as
shown below.
CS AMS
Application mode
0
0
4-bit parallel interface mode
0
1
1-bit serial interface mode
SEG
1
0
Single type application mode
AMS
I
Application
mode select
1
1
Dual type application mode
COM
VDD/VSS
D1_SID,
D2_DL,
I/O
Display data
input/serial
- In segment driver application mode, these pins are
used as 4-bit data input pin (when 4-bit parallel
Controller


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