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NHD-14432WG-BTFH-V#T Datasheet by Newhaven Display Intl
Newhaven Display International! Inc.
www.newhavendisglay.cam
nhtech@newhavendisnlav.cnm
nhsales@newhavendisnlavxnm
NHD-14432WG-BTFH-V#T
Graphic Liquid Crystal Display Module
NHD- Newhaven Display
14432- 144 x 32 Pixels
WG- Display type: Graphic
B- Model
T- White LED backlight
F- FSTN (+)
H- Transflective, 6:00 Optimal View, Wide Temperature
V#T- Built-in Positive Voltage
RoHS Compliant
Newhaven Display International, Inc.
2661 Galvin Ct.
Elgin IL, 60124
Ph: 847-844-8795 Fax: 847-844-8796
www.newhavendisplay.com
nhtech@newhavendisplay.com nhsales@newhavendisplay.com
[2]
Document Revision History
Revision
Date
Description
Changed by
0
10/16/08
Initial Release
-
1
4/5/10
User guide reformat
BE
2
5/10/10
Block diagram/optical updated
BE
3
5/14/10
Updated Mechanical Drawing
MC
4
1/24/12
Timing characteristics updated
AK
5
6/7/13
Controller information added
AK
6
11/4/16
Electrical Characteristics Updated
TM
7
3/8/17
Backlight Characteristics Updated
SB
8
7/5/17
Backlight Characteristics Updated
TM
9
3/5/18
Backlight Voltage Corrected
SB
10
5/5/20
Included Serial Interface Compatibility, Updated Wiring
Diagram + Pinout
AS
11
9/30/20
Included Note on LCD Contrast Optimized for 25°C & Wiring
Diagram
AS
12
3/23/21
Updated Notes in 2D Mechanical Drawing, Electrical
Characteristics, & Quality Information
AS
Functions and Features
• 144x32 pixels
• Built-in ST7920-0C Controller
• +5.0V power supply
• 1/32 duty
• Contrast Optimized for 25°C
• RoHS Compliant
Hr
8 16—1.0PTH
DH“
1+7 '¢_ '- :, +177 ,
PIN NO. SYMBOL
Vss
Vdd
V0
W ¥¥ 31> ’]"—‘
RS
R/W
PTH
PAD
E
UIN
om
75.
DBO
DB1
DB2
DB3
DB4
DB5
DB6
DB7
A
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./ .NVEHNAHQNAL
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10
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mus DRAWWG IS 5mm THE PROPERTV or NEWHAVEN mspw INTERNATWONAL, wc
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B
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B
A
D
E
F
4321 8765
4321 8765
DRAW N DATE:
3/23/21
NS
SHEET 1 OF 1
- THIRD ANGLE PROJECTION
DRAWING/PART NUMBER:
STANDARD TOLERANCE:
(UNLESS OTHERWISE SPECIFIED)
LINEAR: ±0.3mm
UNLESS OTHERWISE SPECIFIED:
NHD-14432WG-BTFH-V#T
REVISION:
1.0
SIZE:
A3
SCALE:
DRAW N BY:
A. Shah
THIS DRAWING IS SOLELY THE PROPERTY OF NEWHAVEN DISPLAY INTERNATIONAL, INC.
THE INFORMATION IT CONTAINS IS NOT TO BE DISCLOSED, REPRODUCED OR COPIED IN
WHOLE OR PART WITHOUT WRITTEN APPROVAL FROM NEWHAVEN DISPLAY.
- DIMENSIONS ARE IN MILLIMETERS
SYMBOL REVISION DATE
DO NOT SCALE DRAWING
APPROVED BY:
APPROVED DATE:
3/23/21
A. Shah
0.38
0.42
0.38
0.42
75.0
2.5
71.2
66.0(VA)
80.0 0.5
4.95
4- 2.5 PTH
4- 5.0 PAD
10.33
7.55
11.6
10.3
16.0(VA)
5.7
36.0 0.5
8.0 P2.54*15=38.1
1.8 16- 1.0 PTH
40.55
18.3
2
60.44(AA)
13.4(AA)
144 * 32 dots
1.6
25.2
31.0 2.5
75.02.5
16
1
13.2
8.6
DB512
15
16
14
13
A
K
DB7
DB6
Vss1
DB07
11
10
8
9
DB4
DB3
DB2
DB1
4
6
5
3
2
RS
E
R/W
Vo
Vdd
Pin Assignment
Notes:
1. Driver: 1/32 Duty
2. Display Mode: FSTN Posi�ve / Transflec�ve
3. Op�mal View: 6:00
4. Voltage: 5.0V VDD
5. Backlight: White LED
6. Driver IC: ST7920-0C
7. Contrast: Op�mized Contrast @ 25 C
°
Mechanical Drawing
[4]
Pin Description
Parallel Interface: (Default)
Pin No.
Symbol
External Connection
Function Description
1
VSS
Power Supply
Ground
2
VDD
Power Supply
Power supply for Logic (+5.0V)
3
V0
-
Do No Connect (Fixed Contrast Optimized for 25°C)
4
RS
MPU
Register Select: 1=Data, 0=Instruction
5
R/W
MPU
Read/Write select signal, R/W=1: Read R/W: =0: Write
6
E
MPU
Operation Enable signal. Falling edge triggered.
7-14
DB0-DB7
MPU
This is an 8-bit bi-directional data bus
15
LED+
Power Supply
Backlight Anode (32 mA @ +3.5V)
16
LED-
Power Supply
Backlight Cathode (Ground)
Serial Interface:
Pin No.
Symbol
External Connection
Function Description
1
VSS
Power Supply
Ground
2
VDD
Power Supply
Supply Voltage for LCD and logic (+5.0V)
3
V0
-
Do No Connect (Fixed Contrast Optimized for 25°C)
4
/CS
MPU
Active LOW Chip Select signal.
5
SID
MPU
Serial Data Input
6
SCLK
MPU
Serial Clock
7-14
NC
MPU
No Connect. Tie to Ground.
15
LED+
Power Supply
Backlight Anode (32mA @ +3.5V)
16
LED-
Power Supply
Backlight Cathode (Ground)
MPU Interface Jumper Selection
MPU Interface
J3 (default)
J4
Parallel (default)
Short
Open
Serial
Open
Short
Recommended LCD connector: 2.54mm pitch pins
Backlight connector: - Mates with: -
5U 3.5x: 5U 3.5V
NHD-l443ENG-B NHD-14432NG-B
R LED+ Parallel Interface 9 LED+ Serial Interface
K LED- K LED—
€7_ “I 67
3: E R8 vnn SCLK cs VDD
" PM W v s SID U0 vss
\_f\_{ \_('\_( __
E 9
3 c: m x :I c: m
“: m p: 2 a g g a 8 a ‘3
G
In
El
MPU MPU
[5]
Wiring Diagram
http: www.mewhavendisplavLom app notes ST7920.pdf
[6]
Electrical Characteristics
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Operating Temperature Range
TOP
Absolute Max
-20
-
+70
⁰C
Storage Temperature Range
TST
Absolute Max
-30
-
+80
⁰C
Supply Voltage
VDD
-
4.5
5.0
5.5
V
Supply Current
IDD
VDD=5.0V
0.5
1.0
3.5
mA
Supply for LCD (Fixed Contrast)
VLCD
TOP =25°
VDD=5.0V
-
-
-
V
“H” Level input
VIH
-
0.7 * VDD
-
VDD
V
“L” Level input
VIL
-
VSS
-
0.6
V
“H” Level output
VOH
-
0.8 * VDD
-
VDD
V
“L” Level output
VOL
-
VSS
-
0.4
V
Backlight Supply Voltage*
VLED
ILED = 32mA
3.4
3.5
3.6
V
Backlight Supply Current
ILED
-
10
32
40
mA
*The LED of the backlight is driven by current drain; drive voltage is for reference only. Drive voltage must be selected to ensure backlight current drain is below MAX
level stated.
Optical Characteristics
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Optimal
Viewing
Angles
Top
ϕY+
CR ≥ 2
-
30
-
⁰
Bottom
ϕY-
-
60
-
⁰
Left
θX-
-
45
-
⁰
Right
θX+
-
45
-
⁰
Contrast Ratio
CR
-
2
5
-
-
Response Time
Rise
TR
TOP = 25°C
-
150
200
ms
Fall
TF
-
150
200
ms
Controller Information
Built-in ST7920-0C.
Please download specification at http://www.newhavendisplay.com/app_notes/ST7920.pdf
lnstmclion Set 1: (RE=o: Basic Instruction)
CM? . . Em limo
Inst. Descnptlon
RS RW DB7 DEG D35 DB4 DB3 D32 D31 D50 (WKHZ)
Display Fill DDRAM wittr "NH" and set DDRAM address counter (AC)
0 0 0 0 0 D 0 0 O 1 16 ms
Clear to "OOH".
Return 0 o o 0 o o o o 1 x Set DDRAM address counter (Ac) In ‘DOH'. and put cursor 72
Home to origin : the content o1 DDRAM are not changed “5
E Mod Set 'tio d d' shin wh doi write read
"W a o o o u o o o 1 IID s ”If“ "'5' " a" ”by a" "9 m 72 us
Set nperallm
. [#1: [isolay 0N
Display
0 0 0 0 0 D 1 D C B 6:1: Cum ON 72 us
Control
3 character Bink ON
Cursor . . . .
_ Cursor postman and display stun oonlml: the content of
Display 0 0 0 0 0 1 SIC RIL X X 72 us
DDRAM are not changed
Control
DL=l 6-bit interlaoe
Function 0 DL=0 4-bit interlace
D 0 0 o 1 DL x x x 72 us
Set RE R xhndcd Imlmcflon
RE ball: lnlltucllon
Set Set OGRAM address to address counter (AC)
CGRAM u o o 1 A05 AC4 AC3 AC2 ACI A00 Make sun mat In uxtundod Instruction SR=11 (scmll or 72 is
Adams. RAM addnss sol-u)
Set
0 Set DDRAM address Io address ooumet (AC)
DDRAM u o 1 A65 A04 A03 A02 A01 A00 , 72 is
AC6 A06 is fined to 0
Address.
Read . ,
a Fla 0 1 BF Ace A05 A04 A03 A02 A01 A00 Rm busy llag (BFHor cornpletronalrnternal operation, also 0
"5y 9 Read out me value of address oounler (AC) "5
(BF) & Ac.
. Write dam to hisrnal RAM
Wnte RAM 1 0 D7 D6 D5 D4 03 D2 D1 D0 12 is
(DDRAM/CGRAMIGDRAM]
Read dam from inlsmal RAM
Read RAM 1 1 D7 D6 D5 D4 D3 D2 D1 D0 72 is
(DDRAM/OGRAMIGDRAM)
[7]
Table of Commands
Instruction sec 2: (R =
: extended instruction)
Code Ex ii
Inst. Description '° ""
RS RW DB7 D36 D35 054 DB3 032 DB1 Dal) (WKHZ)
Emerslandb mode. an other ’nstiuoi'ion can wim'nale.
Standoy o o o o o o o o o 1 y y ' ' 72 us
oom...32 are halted.
Scmllor
RAM 5 enable veniml scroll position
0 o o o o o o o 1 SR 72 us
Address. 5R=u. enable CGRAM address (basic lnstruaionl
Select
rse Select 1 out or 4 line (in DDRAM) and decide wlietlier to
(b line) a o o o o o o l R1 R0 reverse ttie display by toggling tiiis instruction 72 us
y R1 R0 lnnlul valin II o o
DL=1 :a-bil medace
mended DL=0 :witimeriaoe
1 R nun-ind Instruction sat
Function 0 o o a 1 BL X G o —. 12us
Set RE RE strum-i set
6 graphic display ON
64) :giaplilcdisplay OFF
SelSerotl _
Address 0 o o 1 A65 ACA A63 A02 AC1 Aco SR=1:A05~ACO itie addressofvenlcal scroll 72us
_ Set GDRAM address lo address counter (AC)
Seteiapliic _ _
_ Set ttie vertical address first and followed ttie nonmnlal
Display 0 o 0 A63 A02 Act Act) V H
o o 1 address by consecutive writings 72 us
RAM 0 AC5 A04 AC3 AC2 AC1 A00 7
Veriiiail address range: AC5...ACO
Address ‘
Honzonml address range: A03...ACO
[8]
R/W \
T" Till-l
E /
VIH]
R3 Vm
Tns
Tm
TF’ 47 . Tnsfl TH
DBO 71337 ‘ Valid data
TC
Write Mode (Writing data from MPU to ST7920)
Tc Enable Cycle Time Pin E 1200 - ns
pr Enable Pulse Width Pin E 140 - ns
TR,TF Enable Rise/Fall Time Pin E - 25 ns
TA; Address Setup Time Pins: RS,RW,E 10 - ns
TM Address Hold Time Pins: RS.RW.E 20 - ns
Tnsw Data Setup Time Pins: DBO - DB7 40 - ns
TH Data Hold Time Pins: DBO - DB7 20 - ns
[9]
Timing Characteristics
MPU write data to ST7920
vm
RS vm >< tns="" tm!="" r/w="" \="" 7="" tm="" t?’="" 4—h“="" e="" tddr="" &,="" dbo="" —db7="" ;_="" valid="" data="">< tc="" read="" mode="" (reading="" data="" from="" 877920="" to="" mpu)="" tc="" enable="" cycle="" time="" pin="" e="" 1200="" -="" -="" ns="" pr="" enable="" pulse="" width="" pin="" e="" 140="" -="" —="" ns="" tr,tf="" enable="" rise/fall="" time="" pin="" e="" -="" -="" 25="" ns="" t‘s="" address="" setup="" time="" pins:="" rs,rw.e="" 10="" -="" -="" ns="" ta"="" address="" hold="" time="" pins:="" rs,rw,e="" 20="" -="" -="" ns="" tddr="" data="" delay="" time="" pins:="" dbo="" -="" db7="" -="" -="" 100="" ns="" th="" data="" hold="" time="" pins:="" dbo="" -="" db7="" 20="" -="" —="" ns="" http://www.newhavendisplay.com/appnotes/fonttables/graphlcd/st792070c="" font.pdf="">[10]
MPU read data from ST7920
Built-in Font Table
Please see: http://www.newhavendisplay.com/appnotes/fonttables/GraphLCD/ST7920-0C_font.pdf
[11]
Example Initialization Program
//-------------------------------------------------------------------------------
#include <REG52.H>
#include "AL.h"
sbit ID = P3^0;
sbit RW = P3^7;
sbit E = P3^4;
//-------------------------------------------------------------------------------
void Init()
{
Wcom(0x38);
Wcom(0x0C);
Wcom(0x06);
Wcom(0x02);
Wcom(0x01);
delay(10);
Row = 0x80;
for(Counthi = 1; Counthi <=32; Counthi++)
{
Wcom(0x3E);
Wcom(Row);
Wcom(0x80);
for(Count = 1; Count <=40; Count++)
{
Wdata(0x00);
}
Row++;
}
}
//-------------------------------------------------------------------------------
void Wcom(char i)
{
P1 = i;
ID = 0; //Reset P3.0
RW = 0; //Reset P3.7
E = 1; //Set P3.4
delay(1);
E = 0; //Reset P3.4
}
//-------------------------------------------------------------------------------
void Wdata(char i)
{
P1 = i;
ID = 1; //Set P3.0
RW = 0; //Reset P3.7
E = 1; //Set P3.4
delay(1);
E = 0; //Reset P3.4
}
//-------------------------------------------------------------------------------
www.newhavendisglay.com[5Qecs[grecautions.gdf
hm): www.newhavendisn\av.com index.nhn?main page rms
[12]
Quality Information
Test Item
Content of Test
Test Condition
Note
High Temperature storage
Endurance test applying the high storage
temperature for a long time.
+80⁰C , 200 Hrs.
2
Low Temperature storage
Endurance test applying the low storage
temperature for a long time.
-30⁰C , 200 Hrs.
1,2
High Temperature
Operation
Endurance test applying the electric stress
(voltage & current) and the high thermal
stress for a long time.
+70⁰C , 200 Hrs.
2
Low Temperature
Operation
Endurance test applying the electric stress
(voltage & current) and the low thermal
stress for a long time.
-20⁰C , 200 Hrs.
1,2
High Temperature /
Humidity Storage
Endurance test applying the electric stress
(voltage & current) and the high thermal
with high humidity stress for a long time.
+60⁰C , 90% RH , 96 Hrs.
1,2
Thermal Shock resistance
Endurance test applying the electric stress
(voltage & current) during a cycle of low
and high thermal stress.
-20⁰C, 30min -> 25⁰C, 5min -> 70⁰C,
30min = 1 cycle
For 10 cycles
Vibration test
Endurance test applying vibration to
simulate transportation and use.
10-55Hz, 1.5mm amplitude.
60 sec in each of 3 directions X,Y,Z
For 15 minutes
3
Static electricity test
Endurance test applying electric static
discharge.
Air: ±800V, RS=330Ω, CS=150pF
Contact: ±600V, RS=330Ω, CS=150pF
For 10 Times
Note 1: No condensation to be observed.
Note 2: Conducted after 4 hours of storage at 25⁰C, 0%RH.
Note 3: Test performed on product itself, not inside a container.
Precautions for using LCDs/LCMs
See Precautions at www.newhavendisplay.com/specs/precautions.pdf
Warranty Information and Terms & Conditions
http://www.newhavendisplay.com/index.php?main_page=terms
