Website:
www.displaytech.com.hk
LCD Module
Product Specification
Product: 32128A Series
Monochrome Graphic Display Module
(128x32DOTS)
Contents in this document are subject to change without notice. No part of this document
may be reproduced or transmitted in any form or by any means, electronic or mechanical,
for any purpose, without the express written permission of Displaytech Ltd.
October 28, 2014.
Displaytech Ltd
1. REVISION RECORD
VERSION
1.0
1.1
1.2
2.0
2.1
LCD MODULE
32128A SERIES
Version: 2.1
CHANGES
Initial revision
Wide temperature range in page 2
Maximum power supply for logic at absolute maximum ratings in
page 2
New format; Changed the LED driving current on page 5, 6, & 7.
Add interface info in 2. General Specifications
DATE
17 Feb. 2006
27 Mar. 2006
15 Apr. 2008
Jan 30, 2013
Oct 28, 2014
1
Displaytech Ltd
LCD MODULE
32128A SERIES
Version: 2.1
Table of Content
1.
2.
3.
4.
5.
6.
7.
8.
9.
REVISION RECORD ........................................................................ 1
General Specifications ........................................................................ 3
Absolute Maximum Ratings ............................................................... 3
Electrical Characteristics ................................................................... 3
Display Controller /Power Supply Timing ........................................ 3
Block Diagram .................................................................................... 4
Mechanical Drawing ........................................................................... 5
Backlight Drawing .............................................................................. 6
Backlight specification ........................................................................ 7
10. Optical Characteristics ....................................................................... 8
11. Quality Guarantee ............................................................................ 10
12. Precautions For Using LCD Modules.............................................. 15
13. Using LCD Modules.......................................................................... 16
2
Displaytech Ltd
2. General Specifications
Item
Display Format
Dot Size
View Area
Module Size
LCD Type
Polarizer Mode
View Angle
Backlight
Backlight Driver Type
Backlight Color
Controller & LCD Driver
Driving Method
Interface
LCD MODULE
32128A SERIES
Version: 2.1
Contents
128 x 32 DOTS
0.242 x 0.245
36.1 mm x 9.95mm
41.3 mm x 19.7mm x 8.1 mm
FSTN
Transflective
6 O’clock
LED
External Power
White
ST7565V
1/33 Duty, 1/6 Bias
8-Bit Parallel
3. Absolute Maximum Ratings
(Ta=25°C, VSS=0V)
ITEM
Power Supply for Logic
Power Supply for LCD
Input Voltage
Supply Voltage for LED Backlight
Normal Operating Temperature
Normal Storage Temperature
Wide Operating Temperature
Wide Storage Temperature
SYMBOL
VDD
V0-VSS
V
IN
V
LED
Top
Tst
Top
Tst
MIN.
-0.3
4.0
-0.3
---
0
-10
-20
-30
TYP.
---
---
---
3.2
---
---
---
---
MAX.
3.6
13.0
VDD+0.3
---
50
60
70
80
UNIT
V
V
V
V
°C
°C
°C
°C
Note:
•
When temperature is below 0°C, the response time of liquid crystal (LC) will be slower.
•
If module driving condition exceeds the absolute maximum ratings, permanent damaged may be resulted.
If module is driven within the absolute maximum ratings but exceeded the DC characteristics, mal-
function may be resulted.
•
VDD/VCC > VSS
4. Electrical Characteristics
DC Characteristics
(Ta=25°C, VSS=0V)
ITEM
Power Supply for LCM
Input Voltage
LCD Driver Driving
Voltage
Supply Current for
LCM
SYMBOL
VDD
V
IL
V
IH
VDD2
IDD
ILED
CONDITION
---
L level
H level
---
25°C
---
VDD=3.0V; 25°C
VLED=3.2V; 25°C
MIN.
2.85
Vss
0.8VDD
---
---
---
---
---
TYP.
3.0
---
---
---
6.9
---
0.35
45
MAX.
3.15
0.2VDD
Vdd
---
---
---
---
60
UNIT
Volt
Volt
Volt
Volt
mA
5. Display Controller /Power Supply Timing
See Display Controller Specification:
Sitronix ST7565V
3
Displaytech Ltd
6. Block Diagram
LCD MODULE
32128A SERIES
Version: 2.1
4
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