Product Speciﬁcation

NHD- 1.91-176176UBC3Newhaven Display International, Inc.
2661 Galvin Court, Elgin, IL 60124 USA
Ph: 847.844.8795 | Fx: 847.844.8796
www.newhavendisplay.com

REACH
Compliant

RoHS

CompliantTable of ContentsDocument Revision History .......................................................................................................................... 2
Mechanical Drawing .................................................................................................................................... 3
Pin Description ............................................................................................................................................ 4
Interface Selection....................................................................................................................................... 5
Wiring Diagram ........................................................................................................................................... 5
Electrical Characteristics .............................................................................................................................. 6
Optical Characteristics ................................................................................................................................. 6
Controller information ................................................................................................................................. 6
Table of Commands ..................................................................................................................................... 7
Timing Characteristics ................................................................................................................................ 13
Example Initialization Sequence................................................................................................................. 17
Quality Information ................................................................................................................................... 19

Additional Resources➢ Support Forum: https://support.newhavendisplay.com/hc/en-us/community/topics➢ GitHub: https://github.com/newhavendisplay➢ Example Code: https://support.newhavendisplay.com/hc/en-us/categories/4409527834135-Example-Code/➢Knowledge Center: https://www.newhavendisplay.com/knowledge_center.html➢ Quality Center: https://www.newhavendisplay.com/quality_center.html➢ Precautions for using LCDs/LCMs: https://www.newhavendisplay.com/specs/precautions.pdf➢ Warranty / Terms & Conditions: https://www.newhavendisplay.com/terms.html

1Document Revision History
Revision

Date

Description

Changed By-04/29/2024

Initial Release

KL2

1

A2Mechanical Drawing

345678AB

B

1GND

2VDD

3NC

4D/C#

5R/W#

6E7DB08DB19DB210DB311DB412DB513DB614DB715

GND

16RES#

17CS#

18

GND

19BS120

BS2CDE

Product Descrip�on: 1.91” 176x176 Color OLED
1. Driver IC: SSD1333
2. Interface: 8-bit 6800/8080 Parallel, 4-wire SPI, I²C
3. Power Requirement: 3.3V OLEDF 4. Op�cal Features: Full Color, Full View
5. Recommended Pin Header: 2x10pin 2.54mm pitch
123CDE

Standard Tolerance:(Unless otherwise specified)

Linear:±0.3mmUnless otherwise specified:• Dimensions are in Millimeters• Third Angle Projection

Revision:

Drawing/Part Number:

NHD-1.91-176176UBC3

Drawn By:

K. Lewis

Drawn Date:

04/29/2024

Approved By:

K. Lewis

Approved Date:

04/29/2024

This drawing is solely the property of Newhaven Display International, Inc.
The information it contains is not to be disclosed, reproduced or copied inwhole or part without written approval from Newhaven Display.

45678F

Pin Description
Parallel Interface:
Pin No.
12345Symbol
GND
VDDNCD/C#R/W#WR#

External Connection
Power Supply
Power Supply
MPU
MPU

6ERD#

MPU

7-14
151617181920

DB0 – DB7
GNDRES#CS#GND
BS1BS2MPU
Power Supply
MPU
MPU
Power Supply
MPU
MPU

Function Description
GroundSupply Voltage for OLED and logic.
No Connect
Register select signal. D/C=0: Command, D/C=1: Data
6800-interface:
Read/Write select signal, R/W=1: Read R/W: =0: Write
8080-interface:
Active LOW Write signal.
6800-interface:
Operation enable signal. Falling edge triggered.
8080-interface:
Active LOW Read signal.
8-bit Bi-directional data bus lines.
GroundActive LOW Reset signal.
Active LOW Chip Select signal.
GroundInterface Select Signal
Interface Select Signal

External Connection
Power Supply
Power Supply
MPU
Power Supply
MPU
MPU
Power Supply
MPU
MPU
Power Supply
MPU
MPU

Function Description
GroundSupply Voltage for OLED and logic.
No Connect
Register select signal. D/C=0: Command, D/C=1: Data
GroundSerial Clock signal.
Serial Data Input signal.
GroundActive LOW Reset signal.
Active LOW Chip Select signal.
GroundInterface Select Signal
Interface Select Signal

4-wire SPI Interface:Pin No.
12345-6789-15
1617181920Symbol
GND
VDD
NC
D/C#GND
SCLK
SDIN
GND
RES#CS#
GND
BS1
BS2

I²C Interface:
Pin No.
12345-678910-15
1617-181920Symbol
GND
VDD
NC
SA0
GND
SCL
SDAIN
SDAOUT
GND
RES#GND
BS1
BS2

External Connection Function Description
Power Supply
GroundPower Supply
Supply Voltage for OLED and logic.
No Connect
MPU
Slave Address Selection signal
Power Supply
GroundMPU
Serial Clock signal.
MPU
Serial Data Input signal
MPU
Serial Data Output signal
Power Supply
GroundMPU
Active LOW Reset signal.
Power SupplyGround
MPU
Interface Select Signal
MPU
Interface Select Signal
Recommended display connector: 2x10pin 2.54mm pitch4Interface Selection
MPU Interface Pin Selections and Assignment Summary
6800 Parallel
01

BS1
BS2BusInterface
8-bit 6800
8-bit 8080
4-Wire SPI
I2C8080 Parallel
1
1

4-Wire SPI
00

I2C
10

Data/Command Interface
Control Signals
D4
D3
D2
D1
D0
E
R/W#
CS#
D/C#
RES#
D[7:0]
E
R/W#
CS#
D/C#
RES#
D[7:0]
RD#
WR#
CS#
D/C#
RES#
Tie Low
SDIN
SCLK
Tie LowCS#
D/C#RES#Tie Low
SDAOUT SDAIN
SCLTie Low
SA0RES#I2C Interface: SDAIN and SDAOUT are tied together and serve as SDA. The SDAIN pin must be connected to act as SDA. The SDAOUT pin
may be disconnected. When SDAOUT pin is disconnected, the acknowledgement signal will be ignored in the I 2C-bus.
D7

D6

D5

Wiring Diagram

5

Electrical Characteristics
Item
Operating Temperature Range
Storage Temperature Range
Supply Voltage for Logic
Supply Current
Sleep mode Current“H” Level input“L” Level input“H” Level output“L” Level output

Symbol
TOP
TST
VDD
IDD
IDD_ SLEEP
VIH
VIL
VOH
VOLCondition
Absolute Max
Absolute Max
VDD=3.3V, 100% ON
VDD= 3.3V-Min.
-40-402.7
0.8*VDD
VSS
0.9*VDD
VSS

Typ.
3.3
285
2-Max.
+70+85
3.5
310
10
VDD
0.2*VDD
VDD
0.1*VDD

Unit
⁰C
⁰C
V
mA
µA
V
V
V
V

Min.

Typ.

Max.

Unit

7080
80
8080
>10,000:1
101080-⁰⁰⁰⁰µsµs
cd/m2

Optical Characteristics
Item
Optimal Viewing
AnglesTop
BottomLeft
Right

Contrast Ratio
Response Time
BrightnessRiseFallSymbol
ϕY+ϕYθXθX+CRTR
TF
LV

Condition--80cd/m², TOP =25°C, 50%
16,500Hrs.
Checkerboard
XR
0.62
0.66
0.70
Red
YR
0.29
0.33
0.37
XG
0.26
0.30
0.34
Green
YG
0.59
0.63
0.67
Chromaticity
XB
0.10
0.14
0.18
Blue
YB
0.14
0.18
0.22
XW
0.26
0.30
0.34
White
YW
0.29
0.33
0.37
Note: Lifetime at typical temperature is based on accelerated high-temperature operation. Lifetime is tested ataverage 50% pixels on and is rated as Hours until Half-Brightness. The Display OFF command can be used to extend
the lifetime of the display.
Luminance of active pixels will degrade faster than inactive pixels. Residual (burn-in) images may occur. To avoid
this, every pixel should be illuminated uniformly.
Lifetime-Controller information
Built-in SSD1333 Controller: https://support.newhavendisplay.com/hc/en-us/articles/11256414111767-SSD1333

6

Table of Commands

7

8

9

10

11

12

Timing Characteristics
6800-Series MCU Parallel Interface:138080-Series MCU Parallel Interface:14

4-wire SPI:

15

I2C:

16

Example Initialization Sequencevoid Init_OLED(void){
digitalWrite(P16,LOW);//RESdelay(10);digitalWrite(P16,HIGH);//RES
Set_Command_Lock(0x12);// Unlock Driver IC
Set_Display_On_Off(0xAE);// Display Off
Set_Remap_Format(0x64);// Set Horizontal Address Increment
Set_Start_Line(0x00);// Set Mapping RAM Display Start Line
Set_Display_Offset(0x00);// Shift Mapping RAM Counter
Set_Display_Mode(0xA6);// Normal Display Mode
Set_Phase_Length(0x24);
Set_Display_Clock(0x80);
Set_Precharge_Period(0x0F);// Set Second Pre-Charge Period
Set_Precharge_Voltage(0x1F);// Set Pre-Charge Voltage Level as 0.40*VCC
Set_VCOMH(0x05);// Set Common Pins Deselect Voltage Level as0.82*VCC
Set_Contrast_Color(0x3C,0x39,0x43); // Set Contrast of Color A
Set_Master_Current(0x0F);// Set Scale Factor of Segment Output Current
Control
Set_Multiplex_Ratio(0xAF);// 1/128 Duty (Max_Row)command(0xB8);//Gamma Look-Up Tabledata(0x00);//1
data(0x02);//2data(0x04);//3data(0x06);//4data(0x07);//5
data(0x08);//6
data(0x09);//7
data(0x0a);//8
data(0x0b);//9
data(0x0c);//10
data(0x0d);//11
data(0x0e);//12
data(0x10);//13
data(0x11);//14
data(0x12);//15
data(0x14);//16
data(0x15);//17
data(0x16);//18
data(0x18);//19
data(0x1a);//20
data(0x1b);//21
data(0x1d);//22
data(0x1f);//23
data(0x20);//24
data(0x22);//25
data(0x24);//26
data(0x26);//27
data(0x27);//28
data(0x29);//29
data(0x2b);//30
data(0x2d);//31
data(0x2f);//32
data(0x31);//33
data(0x33);//34
data(0x35);//35
data(0x37);//36
data(0x39);//37

17

data(0x3b);//38
data(0x3d);//39
data(0x3f);//40
data(0x42);//41
data(0x44);//42
data(0x46);//43
data(0x48);//44
data(0x4b);//45
data(0x4d);//46
data(0x50);//47
data(0x52);//48
data(0x55);//49
data(0x57);//50
data(0x5a);//51
data(0x5b);//52
data(0x5f);//53
data(0x62);//54
data(0x65);//55
data(0x67);//56
data(0x6a);//57
data(0x6d);//58
data(0x70);//59
data(0x73);//60
data(0x76);//61
data(0x79);//62
data(0x7c);//63
Set_Display_On_Off(0xAF);// Display On}

18

Quality Information
Test Item

Content of Test

High Temperature storage

Test the endurance of the display at highstorage temperature.
Test the endurance of the display at low
storage temperature.
Test the endurance of the display by
applying electric stress (voltage & current)
at high temperature.
Test the endurance of the display by
applying electric stress (voltage & current)
at low temperature.
Test the endurance of the display byapplying electric stress (voltage & current)
at high temperature with high humidity.
Test the endurance of the display by
applying electric stress (voltage & current)
during a cycle of low and hightemperatures.
Test the endurance of the display by
applying vibration to simulatetransportation and use.
Test the endurance of the display by
applying electric static discharge.

Low Temperature storage
High Temperature
Operation
Low Temperature
Operation
High Temperature /Humidity Operation
Thermal Shock resistanceVibration test

Static electricity test

Test ConditionNote+85⁰C, 240hrs

2-40⁰C, 240hrs

1,2+70⁰C, 240hrs

2-40⁰C, 240hrs

1,2+65⁰C, 90% RH, 96hrs

1,2-40⁰C, 30min-> 85⁰C,30min= 1 cycle
20 cycles
5-50Hz, 0.5G
2hrs in each of 3 directions
X,Y,ZAir discharge ±8kV
10 times

3

Note 1: No condensation to be observed.
Note 2: Conducted after 2 hours of storage at 25⁰C, 0%RH.
Note 3: Test performed on product itself, not inside a container.

19