12232A.docx
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12232A.docx
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12232A
图形点阵液晶显示模块技术参数
12232A
目录
(一)基本特性····················第1页
(二)原理图·····················第2页
(三)限定参数····················第2页
(四)直流特性····················第2页
(五)交流特性····················第3页
(六)引脚特性····················第3页
(七)指令表····················第4页
(八)DDRAM地址表················第5页
(九)应用举例··················第6∽10页
一·基本特性
1.概述
12232A是一种图形点阵液晶显示器,它主要由行驱动器/列驱动器及122×32全点阵液晶显示器组成.可完成图形显示,也可以显示七个半(16×16点阵)汉字.
主要技术参数和显示特性:
1.电源:
VDD:
+3∽+5V;LCD外接驱动电压VDD-V0=5.0V
2.显示内容:
122(列)×32(行)点
3.显示颜色:
绿底兰字
4.显示角度:
6点钟直视
5.STN正视反射模式
6.驱动方式:
1/32Duty,1/6Bias
7.工作温度:
20℃∽+70℃,存储温度:
30℃∽+80℃
8.连接方式:
外部接口由带缆连接
2.外形尺寸图
图1
3.机械尺寸一览:
项目
标准尺寸
单位
模块体积
67.1×27.2×8.4
mm
视域
54.8×18.3
mm
行列点阵数
122×32
dots
点距离
0.40×0.45
mm
点大小
0.36×0.41
mm
二.原理图:
三.限定参数:
Item
Symbol
StandardValue
Unit
Condition
Powersupplyvoltage
VDD-VSS
0∽+7.0
V
LCDDrivingvoltage
VDD-VLCD
0∽+12.0
Inputvoltage
VIN
VSS≤VIN≤VDD
Operatingtemperaturerange
Top
0∽+40
°C
N0condition
Storagetemperaturerange
Tst
0∽+60
四.直流特性:
Ta=0∽40゜C,VDD=2.7∽6.0V
Item
Symbol
StandardValue
Unit
PowerSupply
VDD
2.4∽6.0
V
LCDDrivingVoltage
VLCD
-
V
InputHighVoltage
VIN
0.8VDD≤VIN≤VDD
V
InputLowVoltage
VIL
0≤VIL≤0.2VDD
V
OutputLowVoltage
VOL
0.1VDDmax
V
OutputHighVoltage
VOH
0.5VDDmin
V
PowerSupplyCurrent
IDD
240max
uA
LCDPowerSupplyCurrent
ILCD
220max
uA
五.交流特性:
Signal
Parameter
Symbol
MIN
MAX
Unit
Condition
A0,R/W
Systemcycletime
Tcyc
2000
-
ns
Addresssetuptime
Taw
40
-
ns
Addressholdtime
Tah
20
-
ns
D0∽D7
Datasetuptime
Tds
160
-
ns
Dataholdtime
Tdh
20
-
ns
Outputdisabletime
Toh
20
120
ns
CL=100pF
Accesstime
Tacc
-
180
ns
E
Enablepulsewidth(Read)
Tew
200
-
ns
Enablepulsewidth(Write)
160
-
ns
Inputwavewidthrisetime
Tr
-
15
ns
六.引脚特性
管脚号
管脚名称
LEVER
管脚功能描述
1
VDD
+3∽+5V
电源电压
2
VSS
0V
电源地
3
VLCD
0∽+5V
LCD外接驱动负电压
4
RES
H/L
复位信号
5
E1
H/L
读写使能信号(MASTER)
6
E2
H/L
读写使能信号(SLAVE)
7
R/W
H/L
读写选择信号
8
D/I
H/L
D/I=“H”,表示DB7~DB0为显示数据
D/I=“L”,表示DB7~DB0为显示指令数据
9
DB0
H/L
数据线
10
DB1
H/L
数据线
11
DB2
H/L
数据线
12
DB3
H/L
数据线
13
DB4
H/L
数据线
14
DB5
H/L
数据线
15
DB6
H/L
数据线
16
DB7
H/L
数据线
17
NC
-
悬空
18
NC
-
悬空
注:
当VDD=+3V时,VLCD=0∽-5V.
七.指令表
INSTRC
TION
CODE
FUNCTION
A0
/RD
/WR
D7
D6
D5
D4
D3
D2
D1
D0
DISPLAY
ON/OFF
0
1
0
1
0
1
0
1
1
1
1/0
SwitchtheentiredisplayONorOFF,regardlessoftheDisplayRAM's
Dataortheinternalstatus.1:
ON0:
OFF
Display
StartLine
0
1
0
1
1
0
DisplaystartLine
(0…31)
Determinesthelineof
RAMdatatobedisplayedatthedisplay'stopline.
(Com0)
Page
Addressset
0
1
0
1
0
1
1
1
0
PAGE:
(0∽3)
SetsthepageoftheDisplayRAMinthepage
Addressregister.
(Xaddress)
Column(
seg)
Addressset
0
1
0
0
Columnaddress(0~79)
Setsthecolumnofthe
Displayinthecolumnaddressregister.
(Yaddress)
Status
Read
0
0
1
BUSY
A
D
C
ON/
OFF
RST
0
0
0
0
Readstatus
Busy1:
internaloperation0:
Ready
ADC1:
Rightwardout-
Put0:
Leftward
RST1:
Reseting0:
Normal
ON/OFF1:
Displayoff
0:
Displayon
Write
Display
Data
1
1
0
Writedata
Writesthedataonthe
DatabustoRAM
Read
Displaydata
1
0
1
Readdata
Readsdatafromthe
DisplayRAMontothe
DataBUS
ADC
Select
0
1
0
1
0
1
0
0
0
0
0/1
Determinetheclockwiseor
Counterclockwisereading
OfthedisplayDataRAM
0:
Clockwise
1:
Countclockwise
Static
Drive
ON/OFF
0
1
0
1
0
1
0
0
1
0
0/1
Selectthedynamicorstatic
Driving.
1:
Staticdriving
0:
Dynamicdriving
DutyRatio
Select
0
1
0
1
0
1
0
1
0
0
0/1
Selectthedutyratio
1:
1/32duty
0:
1/16duty
Read
Modify
Write
0
1
0
1
1
1
0
0
0
0
0
IncrementthecolumnAdd-ressregisterwhenwriting
Butno-changewhenreadi-
ng.
End
0
1
0
1
1
1
0
1
1
1
0
ReleasefromtheRead
ModifyWriteMode.
Reset
0
1
0
1
1
1
0
0
0
1
0
SettheDisplayStartLine
Registerto1stline,column
Addresscountto0andPa-
geAdd.Resisterto0.
PowerS-
Ave(dual
Command)
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
0
1
1
1
0
0
1
Setthepowersavemodeby
Selectingdisplayoffand
Staticdrivingon
八.DDRAM地址表
Page
Data
ComN0
Drive
2
D0
:
:
D7
:
:
:
122X16PIXELS
:
:
:
:
0
:
:
:
15
Slave
3
D0
:
:
D7
0
D0
:
:
D7
:
:
:
122X16PIXELS
:
:
:
:
0
:
:
:
15
Master
1
D0
:
:
D7
Column
Addr
ADC
=0
00H……3C
00H……3C
Seg
No
0……60
0……60
Drive
Slave
Master
九·应用举例
E11111
EE1
ACM—12232A与单片机8031的一种接口如图5.所示:
(VDD=+5V)
利用图5举例介绍编程实例
ORG0100H
INITM:
MOVA,#0E2H;RESET
LCALLOUTMI
LCALLOUTSI
MOVA,#0AEH;OFFDISPLAY
LCALLOUTMI
LCALLOUTSI
MOVA,#0A4H;OFFSTATICDRIVE
LCALLOUTMI
LCALLOUTSI
MOVA,#0A9H;SELECT1/32DUTY
LCALLOUTMI
LCALLOUTSI
MOVA,#0A0H;ADCSELECTRIGHTWARDOUTPUT
LCALLOUTMI
LCALLOUTSI
MOVA,#0EEH;READMODIFYWRITEOFF
LCALLOUTMI
LCALLOUTSI
MOVA,#00H;COLUMNADDRESSSET
LCALLOUTMI
LCALLOUTSI
MOVA,#0C0H;SETDISPLAYSTARTLINE
LCALLOUTMI
LCALLOUTSI
MOVA,#0AFH;ONDISPLAY
LCALLOUTMI
LCALLOUTSI
;DISPLAY"*"
MOVR2,#0B8H
DIS2:
MOVA,R2
LCALLOUTMI
LCALLOUTSI
MOVA,#00H
LCALLOUTMI
LCALLOUTSI
MOVR1,#1FH
DIS1:
MOVA,#55H
LCALLOUTMD
LCALLOUTSD
MOVA,#0AAH
LCALLOUTMD
LCALLOUTSD
DJNZR1,DIS1
INCR2
CJNER2,#0BCH,DIS2
LCALLMS40
LCALLMS40
LCALLMS40
LCALLMS40
MOVA,#0AFH
;DISPLAY"横条"
MOVR2,#0B8H
DIS3:
MOVA,R2
LCALLOUTMI
LCALLOUTSI
MOVA,#00H
LCALLOUTMI
LCALLOUTSI
MOVR1,#3DH
DIS4:
MOVA,#55H
LCALLOUTMD
LCALLOUTSD
DJNZR1,DIS4
INCR2
CJNER2,#0BCH,DIS3
LCALLMS40
LCALLMS40
LCALLMS40
LCALLMS40
MOVA,#0AFH
LCALLOUTMI
LCALLOUTSI
;DISPLAY"竖条"
MOVR2,#0B8H
DIS5:
MOVA,R2
LCALLOUTMI
LCALLOUTSI
MOVA,#00H
LCALLOUTMI
LCALLOUTSI
MOVR1,#1EH
DIS6:
MOVA,#00H
LCALLOUTMD
LCALLOUTSD
MOVA,#0FFH
LCALLOUTMD
LCALLOUTSD
DJNZR1,DIS6
MOVA,#3CH
LCALLOUTMI
LCALLOUTSI
MOVA,#00H
LCALLOUTMD
LCALLOUTSD
INCR2
CJNER2,#0BCH,DIS5
LCALLMS40
LCALLMS40
LCALLMS40
LCALLMS40
MOVA,#0AFH
;DISPLAY汉字“两只黄鹂鸣翠柳一行白鹭上青天”
INITMC:
MOVDPTR,#CHINESE
MOVR1,#00H
MOVB,#0B8H
DISPWORDM:
PUSHB
MOVA,B
LCALLOUTMI
LCALLOUTSI
MOVA,#00H
LCALLOUTMI
MOVR2,#7AH
DISPWORD1:
MOVA,R1
MOVCA,@A+DPTR
LCALLOUTMD
INCDPTR
DECR2
CJNER2,#3DH,DISPWORD1
MOVA,#00H
LCALLOUTSI
DISPWORD2:
MOVA,R1
MOVCA,@A+DPTR
LCALLOUTSD
INCDPTR
DJNZR2,DISPWORD2
MOVR1,#00H
POPB
INCB
MOVA,B
CJNEA,#0BCH,DISPWORDM
LCALLMS40
LCALLMS40
LCALLMS40
LCALLMS40
AJMPINITM
MS40:
MOVR7,#0E8H
MS2:
MOVR6,#0FFH
MS1:
DJNZR6,MS1
DJNZR7,MS2
RET
;OUTINSTRCTIONTOMASTER6450
OUTMI:
PUSHDPH
PUSHDPL
MOVDPTR,#6000H
MOVX@DPTR,A
POPDPL
POPDPH
RET
;OUTINSTRCTIONTOSLAVE6450
OUTSI:
PUSHDPH
PUSHDPL
MOVDPTR,#5000H
MOVX@DPTR,A
POPDPL
POPDPH
RET
;OUTDATATOMASTER6450
OUTMD:
PUSHDPH
PUSHDPL
MOVDPTR,#0E000H
MOVX@DPTR,A
POPDPL
POPDPH
RET
;OUTDATATOSLAVE6450
OUTSD:
PUSHDPH
PUSHDPL
MOVDPTR,#0D000H
MOVX@DPTR,A
POPDPL
POPDPH
RET
CHINESE:
;(PAGE0)
DB00H,00H
DB00H,80H,80H,80H,80H,80H,80H,80H,80H,80H,80H,80H,80H,80H,0C0H,80H,00
DB00,00,10H,88H,0C4H,23H,40H,42H,42H,42H,42H,42H,0C2H,43H,62H,40H,00
DB00,00,00,0F8H,08H,0CH,0AH,09H,08H,08H,08H,08H,08H,0FCH,08H,00,00
DB00,80H,0EEH,8AH,0FAH,0AAH,0AEH,80H,24H,0E3H,0B6H,0AAH,0B6H,0E2H,20H,20H,00
DB00,00,00,00,00,00,00,00,0FFH,20H,20H,20H,30H,20H,00,00,00
DB00,40H,44H,54H,54H,54H,54H,54H,7FH,54H,54H,54H,54H,56H,44H,40H,00
DB00,40H,42H,42H,42H,42H,42H,42H,0FEH,42H,42H,42H,42H,43H,62H,40H,00
DB00
;(PAGE1)
DB00,00
DB00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00
DB00,02H,01H,00,0FFH,00,00,00,00,00,40H,80H,7FH,00,00,00,00
DB00,00,00,7FH,21H,21H,21H,21H,21H,21H,21H,21H,21H,7FH,00,00,00
DB00,00,40H,40H,5EH,52H,53H,56H,5AH,52H,5AH,56H,90H,90H,78H,10H,00
DB00,40H,40H,40H,40H,40H,40H,40H,7FH,40H,40H,40H,40H,40H,60H,40H,00
DB00,00,00,00,0FFH,15H,15H,15H,15H,15H,55H,95H,7FH,00,00,00,00
DB00,80H,80H,40H,20H,10H,0CH,03H,00,03H,0CH,10H,20H,40H,0C0H,40H,00
DB00
;(PAGE2)
DB00,00
DB00,02H,02H,0F2H,12H,12H,0FEH,12H,12H,12H,0FEH,12H,12H,0F2H,03H,02H,00
DB00,00,00,00,0FCH,04H,04H,04H,04H,04H,04H,04H,0FEH,04H,00,00,00
DB00,20H,20H,24H,24H,24H,3FH,24H,0E4H,24H,3FH,24H,24H,24H,30H,20H,00
DB00,04H,0E4H,24H,0E4H,04H,0E4H,26H,0E4H,00,0FCH,06H,55H,84H,7CH,00,00
DB00,00,0FCH,04H,04H,0FEH,04H,00,0FCH,06H,15H,44H,84H,7EH,04H,00,00
DB00,00,40H,41H,55H,0C9H,41H,5FH,60H,41H,55H,0C9H,41H,5FH,40H,00,00
DB00,10H,0D0H,0FFH,90H,10H,0FEH,02H,02H,0F9H,00,0FEH,02H,02H,0FFH,02H,00
DB00
;(PAGE3)
DB00,00
DB00,00,00,0FFH,08H,04H,03H,14H,08H,04H,03H,44H,98H,7FH,00,00,00
DB00,00,80H,40H,23H,11H,19H,01H,01H,01H,09H,11H,23H,60H,0C0H,00,00
DB00,00,80H,80H,5FH,55H,35H,15H,1FH,15H,35H,35H,5FH,40H,80H,00,00
DB00,00,7FH,02H,7FH,00,7FH,02H,7FH,10H,13H,12H,1AH,52H,82H,7EH,00
DB00,00,0FH,04H,04H,0FH,10H,10H,13H,12H,12H,1AH,52H,82H,7FH,02H,00
DB00,08H,08H,0AH,09H,08H,09H,0AH,0FCH,0AH,09H,08H,09H,0AH,08H,08H,00
DB00,01H,00,0FFH,00,01H,8FH,44H,22H,1FH,00,0FFH,08H,10H,0FH,00,00
DB00
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