CPS298AL

Under development

I2C Compatible Color Sensor

Confidential

CPS298AL
RGB COLOR SENSOR（Convert Light to R,G,B I2C Compatible）

Data Sheet© YITOA Micro Technology Corp., 2020
Last Update ：27-Oct./2020

Note: The contents of this document may be revised without prior notice for improvement of the product.

DS0242-5E 2020/10/27

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CPS298AL

I2C Compatible Color Sensor■ DEVICE DESCRIPTIONCPS298AL is a color sensor that supports I2C interface.
The sensor has sensitivity at Red, Green and Blue respectively and outputs detection results in 16 bit digital values.
■ FEATURES⚫ Support I2C interface⚫ Support sequential and continuous measurement of Red/Green/Blue/Infra-red. (Light receiving mode)⚫ Built-in Metal shading photo detector. It is possible to output only dark current. (Dark mode)⚫ Adjustable sensitivity by setting of integral time. (1～65535)⚫ Small and thin package, surface mounting COB-8 pin.
⚫ Built-in infra-red cut filter.
■ MAXIMUM RATINGS （Ta=25°C）
Item

SymbolRatings

UnitVoltage
Load current
Operation temperature
Storagetemperature
Reflow soldering
conditionVDDmax
Iomax
Topr

5±10-20～+70VmA

Tstg-40～+85°C

Tsol

Peak temp. 250°C,
three times-°C■ RECOMMENDED OPERATING CONDITIONS
Item

SymbolCondition

MIN

TYP

MAXSource voltage
VDD
2.7
3.3
3.6
I2C bus pull up voltage
Vbus
Rp=2.2KΩ
1.8
VDD+0.5(Note 1)
H level input voltage
Vih0.8Vbus
VDD+0.5
L level input voltage
Vil-0.5
0.2VbusBus capacitance
Cbus
400(Note 1) Value of pull up resister is determined by Cbus capacitance and Vbus voltage.

■ TERMINAL FUNCTIONSPIN No.

Terminal symbol

Terminal function

12345678

GND
VDD
SDA
SCLNCNCNCNC

GND pin
VDD pin
SDA pin for I2C
SCL pin for I2C
No connection
No connection
No connection
No connection

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VV
V
VpF

CPS298AL

I2C Compatible Color Sensor■ ELECTRICAL and OPTICAL CHARACTERISTICS● SENSOR(Ta=25°C，VDD=3.3V，light source A (Integral time: 273ms/ch(Initial setting), Light receiving mode)
Item

SymbolExplanation

MIN

TYP

MAX

Unit

Wavelength for
maximum sensitivityλpBlue
GreenRed-

460
540
610-nmDynamic
consumption current

Iddd

E=0 lxExcept for output current

-30%

470

+30%

μA

Idds

E=0 lx, Sleep

-03μA

Sd

E=0 lx--5count

Sb

Blue

-40%

14.5

+40%

Sg
Sr
Sir
Sr/Sb
Sr/Sg
Sb/Sg

GreenRedInfra-red
Red / Blue
Red / GreenBlue / Green

-40%

28.0

+40%

-40%

48.0+40%

-

5.0-

-28%

3.29

+28%

-28%

1.71

+28%

-28%

0.52

+28%

MIN

TYP

MAX

Staticconsumption current
Dark countLight receiving
sensitivity

Light sensitivity ratiocount/lx-● I2C(Ta=25°C，Vdd=3.3V unless otherwise noted)
ItemSymbolExplanation

I2C address

ADDR

7 bit

I2C clock frequency
SDA output voltage
Input / output pincapacity
SDA output
Fall time

Fclk
Vol

Rp=2.2KΩ

Ci
Tf0x29 （0101001）
1400
00.4

kHzV---

20pF

Rp=2.2KΩ，Cp=400pF

--

250

ns・Output rise time of SCL/SDA depends on the time constant of Cbus x Rp

■SPECTRAL SENSITIVITY CHARACTERISTICS (Reference Data)

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Unit3-

CPS298AL

I2C Compatible Color Sensor■ REGISTERS MAPIndex
No.

InitialSymbolRegister name

Descriptionvalue

Reset A/D converter
ADRT[7] “1”: Reset ADC“0”: Start ADC
Setting for sleep mode“1”: Switch to sleep mode“0”: Switch to ADC standby mode

SLP[6]

Monitors auto-sleep function. (Read only)
SLMT[5] “1”: In sleep mode“0”: In ADC operation00h

CTRL

System control registers

Select Light receiving mode or Dark mode.
“1”：Light receiving mode
MSEL[3]
Converts R/G/B/Infra-red photo detector.
“0”：Dark mode
Converts Metal shading photo detector.
Select integral mode
ITGM[2] “1”： Manual setting mode“0”： Fixed time mode (Note 1)
Set integrated time
Values are as follows in fixed time mode & manual
setting mode respectively.

E4h

In fixed time mode
“00“ ： 43.75μs“01” ： 0.7ms
ITGT[1:0]“10” ： 11.2ms“11” ： 89.6ms
In manual setting mode
“00“ ： 87.5 x N μs“01” ： 1.4 x N ms
“10” ： 22.4 x N ms“11” ： 179.2 x N ms

01h

MTS0

Manual timing
setting register (upper)

MT[15:8]

Set integral time (upper) in manual setting mode.
Multiplies of the time selected by ITGT[1:0]0Ch

02hMTS1

Manual timing
setting register (lower)

MT[7:0]Set integral time (lower) in manual setting mode.
Multiplies the time selected by ITGT[1:0]30h(Note 1) Fixed time mode is a function for evaluation. It becomes a design warranty item.
*Before measuring integral time,
Be sure to set the bit7(ADRT) and the bit6(SLP) of the system control registers (00h) in the following order.
ADRT =“1”，SLP = ”1“→ADRT=“1”，SLP=”0“→ADRT=“0”，SLP=”0“DS0242-5E 2020/10/27

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I2C Compatible Color Sensor

Index
No.
03h

04h

05h

06h

07h

08h

09h

0Ah

InitialSymbolRegister name

REDH

RED data register（upper）

Description

value

RE[15:8]

Light receiving mode:
Store detection result of RED PD (upper).
Dark mode:
Store detection result of metal shading PD (upper).

00h

REDL

RED data register(lower)RE[7:0]Light receiving mode:
Store detection result of RED PD (lower).
Dark mode:
Store detection result of metal shading PD (lower).

00h

GREH

GREEN data register(upper)Light receiving mode:
Store detection result of GREEN PD (upper).
GR[15:8] Dark mode:
Store detection result of metal shading PD (upper).

00h

GREL

GREEN data register(lower)GR[7:0]Light receiving mode:
Store detection result of GREEN PD (lower).
Dark mode:
Store detection result of metal shading PD (lower).

00h

BLUH

BLUE data register(upper)BL[15:8]

Light receiving mode:
Store detection result of BLUE PD (upper).
Dark mode:
Store detection result of metal shading PD (upper).

00h

BLUL

BLUE data register(lower)BL[7:0]Light receiving mode:
Store detection result of BLUE PD (lower).
Dark mode:
Store detection result of metal shading PD (lower).

00h

IRCH

Infra-red data register(upper)IR[15:8]

Light receiving mode:
Store detection result of Infra-red PD (upper).
Dark mode:
Store detection result of metal shading PD (upper).

00h

IRCL

Infra-red data register(lower)IR[7:0]Light receiving mode:
Store detection result of Infra-red PD (lower).
Dark mode:
Store detection result of metal shading PD (lower).

00hDS0242-5E 2020/10/27

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CPS298AL

I2C Compatible Color Sensor■ DIMENSIONS and LOCATIONS of PHOTO DETECTORSTop view

Unit：μm*Not to scale

PD Center

90165
IRB

GR

IRB

GR

B

GR

IRB

GR

IRGR

IRB

GR

IRB

RIRB

GR

IRB

G

Light receiving mode

Top view

Unit：mm*Not to scale

Tolerance in PD position
x : ±0.15mm
y : ±0.15mm
tilt : ±2°

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CPS298AL

I2C Compatible Color Sensor■ EXTERNAL DIMENSIONS

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CPS298AL

I2C Compatible Color Sensor■ BLOCK DIAGRAM
Light from light-source

IR cut filter
VDD

Metal shading
frequency counterregisterレジス
タRGx8

Bx8

IRx8x8DARKx4

oscillation
circuitintegral time
control circuit

I2C interface

current - frequency
conversion circuit

SCLSDA

GND
Light receiving mode

Dark mode■ TIMING CHART FOR MANUAL SETTING● Light receiving mode

● Dark mode

● Dark current component cancel processing method
As for the dark current component included in RED / GREED / BLUE / Infra-red data,
It is removable by doing the following operation at the IC outside.
“Data register with Light receiving mode” - “Data register with Dark mode” x 2DS0242-5E 2020/10/27

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CPS298AL

I2C Compatible Color Sensor■ RECOMMENDED PROFILE

10±1 sec
Max. 250C245C±5CTemperature

1～3C /sec

230C

1～3C /sec
160～190C

90±30 sec

TimeDS0242-5E 2020/10/27

9Max 60 sec

CPS298AL

I2C Compatible Color Sensor
To Customers:

If any product described in this document corresponds to goods or technologies which are restricted to export under theJapanese “Foreign Exchange and Foreign Trade Control Law” or other applicable laws of a government having
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In relation to use of the information contained in this document, no license is granted to you with regard to any
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or other rights of third parties arising from the use of the information contained in this document.
The information concerning the circuits and other related information contained in this document is provided forreferential purpose only to explain the operation or application of the products, and it will be your sole responsibility touse such information for designing of your own devices. MTC will not be liable in any way for any loss or damages
incurred to you or any other party arising from the use of such information.
In general, failures in semiconductor products occur at certain percentage. Therefore, upon designing your own devices,
please give due consideration to the redundancy, safety of your devices and methods to prevent occurrence ofmalfunction in order to avoid personal injuries, accidents or other social damages which might happen as the result of afailure of semiconductor products used in your devices.
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The contents of this documents may be subject to change without any notice, due to improvement of reliability or designof the products.
It is inhibited to reproduce or copy the whole or part of this document without the permission of MTC.

YITOA Micro Technology Corporation
Sales Division
465 Osato-cho, Kofu-shi, Yamanashi
400-0053 Japan
Phone (81)-55- 241 – 8622

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