Document Number: 37079 For technical questions, contact: displays@vishay.com www.vishay.com
Revision: 29-Sep-05 1
LED Display Modules
128 x 32 Graphics Display with Drive Electronics and + 5 V HC CMOS Level Video Interface
Orange 0603 Chip LEDs, High Brightness
LED-128G032
Vishay Dale
The LED-128G032 is an LED replacement for the popular
APD-128G032 plasma display module. It is designed to
offer high brightness and superior viewing characteristics in
a slim package. This display is ideal for low to medium level
information content and is ideal for applications such as
arcade games, process control, POS terminals, medical
equipment, message centers and ATM machines.
The LED-128G032 LED display offers high contrast, wide
viewing angle, and long distance readability. It emits a
brilliant orange color which catches the attention of the
viewer, but is yet comfortable to the eye.
The LED-128G032 LED display has a video type interface
and is driven in a standard row/column refresh method.
Pixel data is clocked for a row, and rows are scanned
sequentially. Signals are presented for serial data, dot clock,
column latch, row data, row clock and display enable. The
serial data is entered with the dot clock up to frequencies as
high as 8 MHz. After a row of 128 pixels is clocked in, the
column latch signal is toggled and the data is latched. At the
time the data is latched, the display is briefly disabled using
the display enable signal, then the row pointer is advanced
with the row clock signal. Once each frame the row data
must be asserted to synchronize the column serial data with
the beginning row. The recommended scanning frequency
is approximately 70 Hz, but may be as high as 200 Hz.
Note
(1) Recommended operating voltages, all maximums are absolute
maximum
FEATURES
• LED replacement for the popular APD-128G032 plasma
display module
• + 5 V HC CMOS level video interface
• Large characters
• Highly visible for long distance viewing
• > 30:1 contrast ratio
• Brilliant neon orange color
• Slim profile
ELECTRICAL SPECIFICATIONS
Voltage(s) Required: + 5 VDC (VCC)
Power Required (Fully Lit): Typical = 12.5 W
Maximum = 15 W
OPTICAL SPECIFICATIONS
Viewing Area: 12.75" [323.8 mm] W x 3.15" [80.01 mm] L
Character Size (5 x 7):
0.65" [16.51 mm] H x 0.45" [11.43 mm] W
Pixel Size: 0.063" [1.6 mm] H x 0.031" [0.8 mm] W
Pixel Pitch: 0.100" [2.54 mm]
Luminance: 100 ft-L minimum
Color: Neon orange
Viewing Angle: > 150°
ENVIRONMENTAL SPECIFICATIONS
Operating Temperature: - 40 °C to + 85 °C
Storage Temperature: - 40 °C to + 85 °C
Relative Operating Humidity: To 95 % non-condensing
Mechanical Shock: 30 G
Vibration: 3 G
Operating Altitude: 10 000 ft
STANDARD ELECTRICAL SPECIFICATIONS
(1)
DESCRIPTION SYMBOL MIN. TYP. MAX. UNITS
Logic and LED
Drive Voltage VCC + 4.5 + 5.0 + 5.5 VDC
Logic and LED
Drive Current
(Fully Lit)
ICC -2.53.0A
DC
Logic 1 Input Vih 0.7 VCC --V
DC
Logic 0 Input Vil --0.2 V
CC VDC
DIMENSIONS in inches [millimeters]
4.625
0.150
14.80
7.25
Pin 1 of J2
Pin 1 of J1
Pin 1 of J3
0.150 Mounting Holes (6 x) 128 x 32 Full LED Field
13.775
0.912
0.487
0.625
0.400
Max.
0.70 Max.
Component
Height
3.10
0.15014.50
1.02512.70
4.925
4.075
www.vishay.com For technical questions, contact: displays@vishay.com Document Number: 37079
2Revision: 29-Sep-05
LED-128G032
Vishay Dale LED Display Modules
INTERFACE SIGNAL DESCRIPTION
Dot clock - This signal enters the serial data on each low to
high transition. A total of 128 dot clock transitions must be
present for each line of column/anode data.
Serial data - This signal presents the pixel data in positive
logic format. A logic one represents a lit pixel and a logic
zero represents an extinguished pixel. Data is entered from
right to left. The first pixel data entered will represent the left
most pixel in the row.
Column latch - This signal latches the pixel data into the
driver outputs. When the column latch signal goes to logic
one the data entered previously will fall through to the driver
outputs. When the signal returns to a logic zero the data is
latched and the shift register is now ready to accept the next
row of data. Must be held low while entering new serial data.
Display enable - This signal enables the output drivers.
Using a duty cycle control, this signal may also be used for
intensity control. The display enable must be at logic zero
before the column latch signal transitions. To avoid display
blurring, the row clock signal should also transition while
display enable is a logic zero.
Row data - This signal is the first line marker for the scan.
This input should be held high to correspond to the first row
of pixel data.
Row clock - This signal clocks row data on the falling edge.
The row clock signal is repetitive and must be present for
proper scanning of the display module.
The LED-128G032 has an unique input protection circuit
that assures the column drivers stay blanked on power up.
The protection circuit unblanks the column drivers when the
row clock signal begins (i.e the display begins scanning).
PIN DESCRIPTION
J1 - POWER CONNECTOR
Tyco AMP #640445-8 or equivalent.
Mates with Tyco AMP 640428-8, Molex 09-50-3081 or equivalent
PIN SIGNAL DESCRIPTION
1 N/C No connection
2 N/C No connection
3 KEY Used to key connector
4 GND Ground
5 GND Ground
6V
CC Logic and LED drive supply
7 RESERVED No connection
8 N/C No connection
J2 - DATA CONNECTOR
Tyco AMP#103309-2 or equivalent.
Mates with Tyco AMP 746195-2, Molex 39-27-1146 or equivalent
PIN DESCRIPTION PIN DESCRIPTION
1 Display enable 2 Ground
3 Row data 4 Ground
5 Row clock 6 Ground
7 Column latch 8 Ground
9 Dot clock 10 Ground
11 Serial data 12 Ground
13 No connection 14 Ground
J3 - POWER CONNECTOR
Tyco AMP #641737-1 or equivalent.
Mates with Tyco AMP 1-480424-0 housing, 60617-4 socket terminals
PIN SIGNAL DESCRIPTION
1 RESERVED No connection
2 GND Ground
3 GND Ground
4V
CC Logic and LED drive supply
LOGIC AND DATA TIMING
PARAMETER MIN. TYP. MAX. UNITS
t1100 - - ns
t25--μs
t31--μs
t4- 70 200 Hz
t525 - - ns
t675 - - ns
t775 - - ns
ORDERING INFORMATION
DESCRIPTION PART NUMBER
Display, Driver Electronics and
+ 5 V HC CMOS Interface LED-128G032
J2 Data Connector Kit
(2 pcs. recommended) 280105-05
J1 Power Connector Kit 280108-12
J3 Power Connector Kit 280108-05
Row Clock
Column Latch
Display Enable
Row Data
t4
Display Enable
2
1
0303101
Serial Data 210 126 127
1st bit of row will appear in left most column
t2
Row Clock
230310
110
t3
t1
t5
Dot Clock
Positive edge x 128
t6t7
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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