PMOLED

SPECIFICATION

Part Number USMP-P032-256064WBI-A0

Size 3.2"
Resolution 256 x 64
Color White
IC SSD1322
Brightness 70 cd/m2
Contrast 2000:1
Operating temp. 40 to 70 °C

FOR ADDITIONAL INFORMATION

PLEASE CONTACT:
engineering@usmicroproducts.com

Issue Date Approved by (customer use) Checked by Prepared by

PROPRIETARY NOTE: THIS SPECIFICATION IS THE PROPERTY OF US MICRO PRODUCTS

AND SHALL NOT BE REPRODUCED OR COPIED WITHOUT THE WRITTEN PERMISSION OF (800) 741-7755
US MICRO PRODUCTS AND MUST BE RETURNED TO US MICRO PRODUCTS UPON ITS www.usmicroproducts.com
REQUEST.

- CONFIDENTIAL -
 REVISION RECORD
REV. REVISION DESCRIPTION REV. DATE REMARK
X01 INITIAL RELEASE 2008. 04. 07
X02 ■ Add IC specifications 2008. 06. 19 Page 4 &
■ Add lifetime specifications 6~16
■ Add panel electrical specifications
A01 ■ Transfer from X version 2009. 02. 16 Page 5, 6, 7,
■ Add the information of module weight 8, 10, 15 & 18
■ Modify the contrast setting for different
luminance
■ Modify D.C electrical characteristics
■ Modify panel electrical specifications
■ Modify descriptions of pin assignments
■ Modify the application circuit
■ Add the packing specification

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 CONTENTS

ITEM PAGE
1. SCOPE 4
2. WARRANTY 4
3. FEATURES 4
4. MECHANICAL DATA 5
5. MAXIMUM RATINGS 6
6. ELECTRICAL CHARACTERISTICS 7
6.1 D.C ELECTRICAL CHARACTERISTICS
6.2 ELECTRO-OPTICAL CHARACTERISTICS
7. INTERFACE 9
7.1 FUNCTION BLOCK DIAGRAM
7.2 PANEL LAYOUT DIAGRAM
7.3 PIN ASSIGNMENTS
7.4 GRAPHIC DISPLAY DATA RAM ADDRESS MAP
7.5 INTERFACE TIMING CHART
8. POWER ON / OFF SEQUENCE & APPLICATION CIRCUIT 14
8.1 POWER ON / OFF SEQUENCE
8.2 APPLICATION CIRCUIT
8.3 COMMAND TABLE
9. RELIABILITY TEST CONDITIONS 16
10. EXTERNAL DIMENSION 17
11. PACKING SPECIFICATION 18
12. APPENDIXES 19

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 1. SCOPE
The purpose of this specification is to define the general provisions and
quality requirements that apply to the supply of display cells manufactured by
USMP. This document, together with the Module Ass’ y Drawing, is the
highest-level specification for this product. It describes the product, identifies
supporting documents and contains specifications.

2. WARRANTY
USMP warrants that the products delivered pursuant to this specification (or
order) will conform to the agreed specifications for twelve (12) months from the
shipping date ("Warranty Period"). USMP is obligated to repair or replace the
products which are found to be defective or inconsistent with the specifications
during the Warranty Period without charge, on condition that the products are
stored or used as the conditions specified in the specifications. Nevertheless,
USMP is not obligated to repair or replace the products without charge if the
defects or inconsistency are caused by the force majeure or the reckless
behaviors of the customer.
After the Warranty Period, all repairs or replacements of the products are
subject to charge.

3. FEATURES
‐ Small molecular organic light emitting diode.
‐ Color : White.
‐ Panel matrix : 256x64.
‐ Driver IC : SSD1322.
‐ Excellent Quick response time : 10μs.
‐ Extremely thin thickness for best mechanism design : 2.01mm.
‐ High contrast : 2000:1.
‐ Wide viewing angle : 160
.
‐ 8-bit 6800/8080-series parallel interface, 3/4-wire Serial Peripheral
Interface.
‐ Wide range of operating temperature : -40 to 70 °C.
‐ Anti-glare polarizer.

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 4. MECHANICAL DATA

NO ITEM SPECIFICATION UNIT

1 Dot Matrix 256 (W) x 64 (H) dot
2 Dot Size 0.289 (W) x 0.289 (H) mm2
3 Dot Pitch 0.309 (W) x 0.309 (H) mm2
4 Aperture Rate 88 %
5 Active Area 79.084 (W) x 19.756 (H) mm2
6 Panel Size 87.4 (W) x 28.5 (H) mm2
7 Panel Thickness 2.01 mm
8 Module Size 87.4 (W) x 51.3 (H) x 2.01 (T) mm3
9 Diagonal A/A size 3.2 inch
10 Module Weight 11.03 ± 10% gram

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 5. MAXIMUM RATINGS

ITEM MIN MAX UNIT Condition Remark

IC maximum
Supply Voltage (VCI) -0.3 4 V Ta = 25°C
rating
IC maximum
Supply Voltage (VCC) 10 21 V Ta = 25°C
rating
Operating Temp. -40 70 °C
Storage Temp -40 85 °C
Humidity 85 %
80 cd/m2, 50%
Life Time 13,000 - Hrs Note (1)
checkerboard
70 cd/m2, 50%
Life Time 16,000 - Hrs Note (2)
checkerboard
60 cd/m2, 50%
Life Time 19,000 - Hrs Note (3)
checkerboard

(A) Under VCC = 14V, Ta = 25°C, 50% RH.

(B) Life time is defined the amount of time when the luminance has decayed to
less than 50% of the initial measured luminance.
(1) Setting of 80 cd/m2 :
- Contrast setting : 0x70
- Frame rate : 105Hz
- Duty setting : 1/64
(2) Setting of 70 cd/m2 :
- Contrast setting : 0x5a
- Frame rate : 105Hz
- Duty setting : 1/64
(3) Setting of 60 cd/m2 :
- Contrast setting : 0x49
- Frame rate : 105Hz
- Duty setting : 1/64

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 6. ELECTRICAL CHARACTERISTICS

6.1 D.C ELECTRICAL CHARACTERISTICS

SYMBOL PARAMETERS TEST CONDITION MIN TYP MAX UNIT

VCC Operating Voltage - 13.5 14 14.5 V
Low voltage power
VCI - 2.4 2.8 3.5 V
supply
VDDIO Power Supply for I/O pins - 1.65 1.8 VCI V
0.8*
VIH High Logic Input Level - - VDDIO V
VDDIO
0.2*
VIL Low Logic Input Level - 0 - V
VDDIO
0.9*
VOH High Logic Output Level IOUT = 100uA - VDDIO V
VDDIO
0.1*
VOL Low Logic Output Level IOUT = 100uA 0 - V
VDDIO
VCI = 2.8V, External
VCC = 18V, VDD = 2.2 2.6
VDDIO = 2.5V
ICC VCC Supply Current 2.8V,Display mA
ON, No panel Internal
attached, VDD = 2.2 2.6
contrast = FF 2.5V
VCI = 2.8V, External
VCC = 18V, VDD = 35 45
VDDIO = 2.5V
ICI VCI Supply Current 2.8V, Display uA
ON, No panel Internal
attached, VDD = 170 220
contrast = FF 2.5V
VCI = 2.8V, External
VCC = 18V, VDD = 40 50
VDDIO = 2.5V
IDDIO VDDIO Supply Current 2.8V, Display uA
ON, No panel Internal
attached, VDD = 40 50
contrast = FF 2.5V

Contrast = FF 310 340 370 uA

Segment Output Current
ISEG Setting VCC=20V, Contrast = 7F - 170 - uA
IREF=10uA
Contrast = 3F - 85 - uA

Note 1: VCI= 2.8 V；VCC= 14V；Frame rate= 105Hz；No panel attached.

Note 2: The Vcc input must keep in a stable value; ripple and noise are not
allowed.

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 6.2 ELECTRO-OPTICAL CHARACTERISTICS

PANEL ELECTRICAL SPECIFICATIONS

PARAMETER MIN TYP. MAX UNITS COMMENTS
Normal mode current 44 46 mA All pixels on (1)
Standby mode Standby mode
4 6 mA
current 10% pixels on (2)
Normal mode power
616 644 mW All pixels on (1)
consumption
Standby mode power Standby mode
56 84 mW
consumption 10% pixels on (2)
Normal mode
60 70 cd/m2 Display Average
Luminance
Standby mode
30 cd/m2 Display Average
Luminance
CIEx (White) 0.24 0.28 0.32
x, y (CIE 1931)
CIEy (White) 0.28 0.32 0.36
Dark Room Contrast 2000:1
Viewing Angle 160 degree
Response Time 10 μs

(1) Normal mode condition :

- Driving Voltage : 14V
- Contrast setting : 0x5a
- Frame rate : 105Hz
- Duty setting : 1/64
(2) Standby mode condition :
- Driving Voltage : 14V
- Contrast setting : 0x20
- Frame rate : 105Hz
- Duty setting : 1/64

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 7. INTERFACE
7.1 FUNCTION BLOCK DIAGRAM

7.2 PANEL LAYOUT DIAGRAM

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 7.3 PIN ASSIGNMENTS
PIN NAME PIN NO. DESCRIPTION
NC 1 No connection.
VSS 2 Ground pin.
NC 3 No connection.
VCC 4 Power supply for panel driving voltage.
COM signal deselected voltage level.
VCOMH 5
A capacitor should be connected between this pin and VSS.
VLSS 6 Analog system ground pin.
MS 7 This pin must be connected to VDDIO to enable the chip.
D7 8
D6 9
D5 10
D4 11 These pins are bi-directional data bus connecting to the
D3 12 MCU data bus.
D2 13
D1 14
D0 15
When connecting to an 8080-microprocessor, this pin
receives the Read (RD#) signal.Read operation is initiated
E/RD# 16 when this pin is pulled LOW and the chip is selected.
When serial interface is selected, this pin E(RD#) must be
connected to VSS.
When 8080 interface mode is selected, this pin will be the
Write (WR#) input. Data write operation is initiated when this
R/W# 17 pin is pulled LOW and the chip is selected.
When serial interface is selected, this pin R/W (WR#) must
be connected to VSS.
BS0 18
MCU bus interface selection pins.
BS1 19
This pin is Data/Command control pin connecting to the
DC# 20
MCU.
This pin is the chip select input connecting to the MCU.
CS# 21 The chip is enabled for MCU communication only when CS#
is pulled LOW.
This pin is reset signal input.
RES# 22 When the pin is pulled LOW, initialization of the chip is
executed.
DOF# 23 This pin is No Connection pins.
CL 24 External clock input pin.
FR 25 This pin is No Connection pins.
IREF 26 A resistor should be connected between this pin and VSS.
Power supply for interface logic level.
VDDIO 27
It should be matched with the MCU interface voltage level.
Power supply pin for core logic operation.
VDD 28
A capacitor is required to connect between this pin and VSS.

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 Low voltage power supply.
VCI 29
VCI must always be equal to or higher than VDD and VDDIO.
This is segment voltage reference pin. When external VSL is
VSL 30
used, connect with resistor and diode to ground.
VLSS 31 Analog system ground pin.
NC 32 No connection.
VCC 33 Power supply for panel driving voltage.
NC 34 No connection.

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 7.4 GRAPHIC DISPLAY DATA RAM ADDRESS MAP

The GDDRAM address map shows the GDDRAM in Gray Scale mode. Since in
Gray Scale mode, there are 16 gray levels. Therefore four bits (one nibble) are
allocated for each pixel.
For example D30480[3:0] corresponds to the pixel located in (COM127, SEG2).
So the lower nibble and higher nibble of D0, D1, D2, …, D30717, D30718,
D30719 represent the 480x128 data nibbles in the GDDRAM.

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 7.5 INTERFACE TIMING CHART

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 8. POWER ON / OFF SEQUENCE & APPLICATION CIRCUIT
8.1 POWER ON / OFF SEQUENCE
Power ON sequence:
1.Power ON VCI,VDDIO.
2.After VCI,VDDIO become stable,set wait time at least 1ms (t0) for internal VDD
become stable.Then set RES# pin LOW (logic low) for at least 100us (t1)(4)
and then HIGH (logic high).
3.After set RES# pin LOW (logic low ), wait for at least 100us(t2).
Then Power ON VCC.(1)
4.After VCC become stable, send command AFh for display ON. SEG/COM will
be ON after 200ms(tAF).

Power OFF sequence:

1.Send command AEh for display OFF.
2.Power OFF VCC. (1), (2)
3.Wait for tOFF. Power OFF VCI,VDDIO.
(where Minimum tOFF=80ms(3), Typical tOFF=100ms )

Note:
(1).Since an ESD protection circuit is connected between VCI, VDDIO and VCC, VCC becomes lower
than VCI whenever VCI,VDDIO is ON and VCC is OFF as shown in the dotted line of VCC in
Figure.
(2).VCC should be kept float (disable) when it is OFF.
(3).VCI, VDDIO should not be Power OFF before VCC Power OFF.
(4).The register values are reset after t1.
(5).Power pins (VDD, VCC) can never be pulled to ground under any circumstance.

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 8.2 APPLICATION CIRCUIT

Recommend components:
C1, C2, C4: 1uF/16V(0805)
C3, C5: 4.7uF/35V (Tantalum type) or VISHAY (572D475X0025A2T)
R1: 430K ohm 1%(0603)
R2: 50 ohm 1/4W
D1, D2: RB480K(ROHM)
This circuit is for 8080 8bits interface.

8.3 COMMAND TABLE

Refer to SSD1322 IC Spec.

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 9. RELIABILITY TEST CONDITIONS

No. Items Specification Quantity

High temp.
1 85°C, 240hrs 5
(Non-operation)
2 High temp. (Operation) 70°C, 120hrs 5
3 Low temp. (Operation) -40°C, 120hrs 5
High temp. / High
4 65°C, 90%RH, 120hrs 5
humidity (Operation)

-40°C ~85°C (-40°C /30min;

Thermal shock
5 transit /3min; 85°C /30min; transit 5
(Non-operation)
/3min) 1cycle: 66min, 100 cycles

Frequency : 5~50HZ, 0.5G

Scan rate : 1 oct/min
6 Vibration 1 Carton
Time : 2 hrs/axis
Test axis : X, Y, Z

Height: 120cm
Sequence : 1 angle、3 edges and
7 Drop 1 Carton
6 faces
Cycles: 1
Air discharge model, ±8kV, 10
8 ESD (Non-operation) 5
times

Test and measurement conditions

1. All measurements shall not be started until the specimens attain to
temperature stability.
2. All-pixels-on is used as operation test pattern.
3. The degradation of Polarizer are ignored for item 1, 4 & 5.

Evaluation criteria
1. The function test is OK.
2. No observable defects.
3. Luminance: > 50% of initial value.
4. Current consumption: within ± 50% of initial value.

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 10. EXTERNAL DIMENSION

USMP-P032-256064WBI-A0

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 11. PACKING SPECIFICATION

USMP-P032-256064WBI-A0

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 12. APPENDIXES

APPENDIX 1: DEFINITIONS

A. DEFINITION OF CHROMATICITY COORDINATE

The chromaticity coordinate is defined as the coordinate value on the CIE

1931 color chart for R, G, B, W.

B. DEFINITION OF CONTRAST RATIO

The contrast ratio is defined as the following formula:

Luminance of all pixels on measurement

Contrast Ratio =
Luminance of all pixels off measurement

C. DEFINITION OF RESPONSE TIME

The definition of turn-on response time Tr is the time interval between a pixel
reaching 10% of steady state luminance and 90% of steady state luminance.
The definition of turn-off response time Tf is the time interval between a pixel
reaching 90% of steady state luminance and 10% of steady state luminance.
It is shown in Figure 2.
Brightness

100%
90%
10%

Tr Tf

Figure 2 Response time

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 D. DEFINITION OF VIEWING ANGLE

The viewing angle is defined as Figure 3. Horizontal and vertical (H & V)

angles are determined for viewing directions where luminance varies by 50%
of the perpendicular value.

= 0 
= 0 +y
+y
+
- - +

+x
+x -x
-x

(directio n)
(directio n)

-y
-y

Figure 3 Viewing angle

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 APPENDIX 2: MEASUREMENT APPARATUS

A. LUMINANCE/COLOR COORDINATE

PHOTO RESEARCH PR-705, MINOLTA CS-100

Measurement
Header
PR-705 /
MINOLTA CS-100
Panel
Color Analyzer

Plate Form

B. CONTRAST / RESPONSE TIME / VIEW ANGLE

WESTAR CORPORATION FPM-510

Measurement
Header
Westar FPM-510
Display Contrast /
Panel
Response time /
View angle Analyzer
Plate Form

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 C. ESD ON AIR DISCHARGE MODE

R 330 ohms ESD

DISCHARGE
TIP
V C EUT
150pF
RETURN

GROUND PLANE

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 APPENDIX 3: PRECAUTIONS

A. RESIDUE IMAGE
Because the pixels are lighted in different time, the luminance of active pixels
may reduce or differ from inactive pixels. Therefore, the residue image will
occur. To avoid the residue image, every pixel needs to be lighted up
uniformly.

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