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SPS1M002PET

P1-P3P4-P6
© Semiconductor Components Industries, LLC, 2017
February, 2018 − Rev. 0
1 Publication Order Number:
SPSXM002/D
SPSXM002
Smart Passive Sensort for
Direct Moisture Sensing
Description
The SPSXM002 is a battery−free wireless sensor for moisture level
detection on non−metal surfaces. Smart Passive Sensors use the
Magnus−S2
®
Sensor IC from RF Micron, a UHF RFID chip that is
powered by RF energy harvesting from the UHF reader. The
Magnus−S2 utilizes the patented self−tuning Chameleont engine that
adapts the RF front−end to optimize performance in various
environmental conditions. Changes in antenna detuning due to
moisture contact are digitized by the sensor which can then be read by
a standard EPC Gen 2 compliant reader. These sensor tags function in
either the FCC defined UHF band or the ETSI UHF band.
The small form factor and battery−free capabilities of Smart Passive
Sensors allow them to be designed into applications where size and
accessibility are at a premium.
Features
• Single IC, Smart Passive Sensing
• Small Form Factor Packages
• Direct Moisture Contact Sensing
• On−chip RSSI Sensor
• 64 bit TID and 128 bit EPC + 144 Bit User Defined Memory
• EPC Class 1 Gen 2 v.2.0.0 ISO 18 000−6C Compliant
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Applications
• Medical
• Industrial
• Facilities Management
MAXIMUM RATINGS (T
A
= 25°C unless otherwise noted)
Rating
Symbol Max Unit
Human Body Model (Note 1) ESD ±1 kV
Stresses exceeding those listed in the Maximum Ratings table may damage the
device. If any of these limits are exceeded, device functionality should not be
assumed, damage may occur and reliability may be affected.
1. Non−repetitive current pulse at T
A
= 25°C, per JS−001 waveform.
THERMAL CHARACTERISTICS
Characteristic Symbol Max Unit
Operating and Storage Temperature
Range (Note 2)
T
OP
, T
stg
−20 to +60 °C
2. Shelf Life − minimum 2 years from date of manufacturing.
www.onsemi.com
RF TAG 101.60x31.75MM
CASE 888AD/AE
See detailed ordering and shipping information on page 5 o
f
this data sheet.
ORDERING INFORMATION
SPSXM002
www.onsemi.com
2
Table 1. ELECTRICAL CHARACTERISTICS (T
A
= 25°C unless otherwise noted)
Parameter
Min Max Units
Operating Frequency (Note 3)
FCC 902 928 MHz
ETSI
866 868 MHz
Read Sensitivity (Note 4) −16 dBm
Sensor Code 5 bits
RSSI Code 5 bits
TID 64 bits
EPC (Note 5) 128 bits
User Memory (Note 5) 144 bits
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
3. Band specific part numbers can be found in the ordering information table
4. Measured in free space, anechoic chamber with a linearly polarized antenna at 50 cm read distance
5. User Memory can be configured to be an EPC extension, effectively making a 272 bit EPC code
Figure 1. Moisture Contact Test Area
Moisture Sensing
The SPSXM002 generates sensor codes from 0 to 31, with
a free space sensor code average of 18. Figure 1 shows the
moisture sensitive portion of the tag used to collect the data
in Figure 2. The SPSXM002 with a damp cloth over the
sensor yields a sensor value 5 codes lower than the dry test.
For the moisture test seen in Figure 1, the sensor value shifts
approximately 5 codes when water is detected on the surface
of the tag. Due to the Smart Passive Sensors’ self−tuning
capability, the sensor code does shift over frequency as it
tunes itself to maximize reflected power to the reader. This
makes it important to account for the frequency at which the
sensor was read. This factor must be accounted for in the
reader software in order to ensure reliable wet vs. dry reads.
For more information on how Smart Passive Sensors
generate sensor codes, please refer to Application Note
AND9209/D.
Figure 2. Sensor Code for Wet and Dry Conditions
DRY
WET
SPSXM002
www.onsemi.com
3
Table 2. MEMORY MAP
Bank # Bank Name R/W Bit Address Description LSB MSB Default Value
11 USER
N/A A0−AF On−chip RSSI Threshold N/A
READ/WRITE
80−8F User Memory 0
70−7F User Memory 0
60−6F User Memory 0
50−5F User Memory 0
40−4F User Memory 0
30−3F User Memory 0
20−2F User Memory 0
10−1F User Memory 0
00−0F User Memory 0
10 TID READ ONLY
50−5F TID[15:0]
40−4F TID[31:16]
30−3F TID[47:32]
20−2F Extended TID Header
10−1F Tag Model Number
08−13 Manufacturer ID
00−07 Class ID
01 EPC
WRITE ONLY 140−14F EPC Configure 0
READ/WRITE
90−9F EPC#[15:0] 0
80−8F EPC#[31:16] 0
70−7F EPC#[47:32] 0
60−6F EPC#[63:48] 0
50−5F EPC#[79:64] 0
40−4F EPC#[95:80] 0
30−3F EPC#[111:96] 0
20−2F EPC#[127:112] 0
10−1F StoredPC[15:0] 0
READ ONLY 00−0F StoredCRC[15:0] 0
00 RESERVED
READ/WRITE F0−FF Sensor Overwrite 0
READ ONLY
D0−DF On−chip RSSI Code N/A
B0−BF Sensor Code N/A
READ/WRITE
50−5F Analog Overwrite 0
30−3F Access Password[15:0] 0
20−2F Access Password[31:16] 0
10−1F Kill Password[15:0] 0
00−0F Kill Password[31:16] 0
P1-P3P4-P6

SPS1M002PET

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RFID Transponders FCC-MOISTURE-PET
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