Document
TOPWAY
LCD Module User Manual
LM12832DCW
LM12832DCW
LCD Module User Manual
Prepared by:
Zhou
Date:2013-03-27
Checked by: Date:
Approved by: Date:
Rev.
0.1 0.2
Descriptions
Prelimiay release Typing Correction
URL: www.topwaydisplay.com www.topwaysz.com
Release Date 2011-04-02 2013-03-27
Document Name: LM12832DCW-Manual-Rev0.2 Page: 1 of 11
TOPWAY
LCD Module User Manual
LM12832DCW
Table of Content
1. Basic Specifications .................................................................................................................. 3
1.1 Display Specifications .................................................................................................................................................. 3 1.2 Mechanical Specifications............................................................................................................................................ 3 1.3 Block Diagram.............................................................................................................................................................. 3 1.4 Terminal Functions ...................................................................................................................................................... 4
2. Absolute Maximum Ratings...................................................................................................... 5
3. Electrical Characteristics .......................................................................................................... 5
3.1 DC Characteristics ....................................................................................................................................................... 5 3.2 LED Backlight Circuit Characteristics........................................................................................................................... 5 3.3 AC Characteristics ....................................................................................................................................................... 6
4. Function specifications............................................................................................................. 7
4.1 Basic Setting ................................................................................................................................................................ 7 4.2 Resetting the LCD module ........................................................................................................................................... 7 4.3 LCD driving voltage circuit ........................................................................................................................................... 7 4.4 Display Memory Map ................................................................................................................................................... 8 4.5 Display Commands ...................................................................................................................................................... 9 4.5 Display Commands (continue) .................................................................................................................................... 10
5. Design and Handling Precaution............................................................................................ 11
URL: www.topwaydisplay.com www.topwaysz.com
Document Name: LM12832DCW-Manual-Rev0.2 Page: 2 of 11
TOPWAY
LCD Module User Manual
1. Basic Specifications
1.1 Display Specifications 1) LCD Display Mode 2) Display Color
3) Viewing Angle 4) Driving Method 5) Backlight
: FSTN, Positive, Transflective : Display Data = “1” : Dark Gray(*1) : Display Data = “0” : Light Gray (*2) : 6H : 1/33 duty, 1/6 bias : White LED backlight
Note: *1. Color tone may slightly change by Temperature and Driving Condition. *2. The Color is defined as the inactive / background color
1.2 Mechanical Specifications
1) Outline Dimension
: 42.5 x 37.2 x 8.9 (See attached Outline Drawing for details)
1.3 Block Diagram
LM12832DCW
BLA BLK
VDD,VSS XV0,V0 VG
SI,SCL,A0 /RES,/CS1
Backlight Circuit LCD Panel
128×32Pixels
ST7567 or equivalent
URL: www.topwaydisplay.com www.topwaysz.com
Document Name: LM12832DCW-Manual-Rev0.2 Page: 3 of 11
TOPWAY
LCD Module User Manual
LM12832DCW
1.4 Terminal Functions
Pin No. 1
PIN Name
/CS1
I/O Input
2 /RES Input
3 A0 Input
4 SCL Input 5 SI Input 6 VDD Power 7 VSS Power 8 NC 9 10 11 12 V0 Power 13 XV0 Power 14 VG Power 15 NC 16 17 18 - BLA Power - BLK Power
Descriptions Chip Select /CS1=L, enable access to the LCD module /CS1=H, disable access to the LCD module Reset signal /RES = L, Initialization is executed /RES= H, Normal running. Register Select A0 = H, Transferring the Display Data A0 = L, Transferring the Control Data Serial clock in Serial data in Positive power supply Negative power supply,0V No connection, leave open
LCD driving voltage for common circuits at negative frame LCD d.