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NXP Semiconductors SL3S1204FTB0/1X
- Part No.:
- SL3S1204FTB0/1X
- Manufacturer:
- NXP Semiconductors
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- 6-XFDFN
- Datasheet:
-
SL3S1204FTB0/1X.pdf
- Description:
- IC UCODE SMART 860-960MHZ XSON6
- Quantity:
- Payment:
- Shipping:
Inventory:2,486
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Product details
Overview
SL3S1204FTB0/1X from NXP Semiconductors is a UHF RFID IC compliant with EPC Gen2 v2.0, designed for high-performance passive tag inlays in retail and fashion inventory systems. It delivers -21 dBm read sensitivity, -16 dBm write sensitivity, 128-bit EPC memory, factory-locked 96-bit TID with 48-bit unique serial number, and supports parallel encoding for bulk tag initialization.
For engineers reviewing the SL3S1204FTB0/1X datasheet, SL3S1204FTB0/1X pinout, SL3S1204FTB0/1X application, or SL3S1204FTB0/1X equivalent, this page provides verified technical context, package-specific pin mapping, real-world use-value analysis for dense-tag environments, and validated alternative options for EPC Gen2-compliant UHF RFID tagging.
Technical Context
The SL3S1204FTB0/1X implements a CMOS 0.14 μm analog/digital architecture with integrated rectifier, voltage regulator, demodulator, modulator, EEPROM, and state-machine control logic. Its RF interface uses dual antenna terminals (RF1/RF2) to support loop and dipole antennas, enabling single-slit antenna compatibility and impedance tuning flexibility.
It executes full EPCglobal Class-1 Generation-2 V1.2.0 protocol-including mandatory Kill and (Perma)Lock commands-and optional Access and BlockWrite (32-bit). Feature activation (e.g., Tag Power Indicator, Parallel Encoding) occurs via standard SELECT commands targeting specific bits (202h, 204h) in the EPC bank configuration word-no custom firmware required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Read sensitivity | -21 dBm - enables longest possible read range under regulatory limits for given antenna size |
| Write sensitivity | -16 dBm - allows reliable encoding at lower field strength, reducing reader power requirements |
| EPC memory size | Up to 128 bits - supports extended product identifiers and GS1-compliant encoding schemes |
| TID structure | 96-bit factory-locked, including 48-bit unique serial number - ensures unalterable device traceability and anti-counterfeiting |
| Operating temperature | -40 °C to +85 °C - qualified for industrial-grade label lamination and warehouse deployment |
| Write endurance | 100,000 cycles - sufficient for reprogrammable asset tracking applications |
| Encoding speed | 16 bits/ms - achieves full 128-bit EPC write in ≤8 ms per tag |
Pinout & Package
SL3S1204FTB0/1X is packaged in SOT886 (XSON6), a leadless plastic extremely thin small outline package measuring 1.0 × 1.45 × 0.5 mm. The package exposes only two functional RF terminals; all other pins are no-connect.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RF2 | Antenna connector terminal - forms one side of differential RF input path; compatible with loop and dipole topologies |
| 2–5 | n.c. | No connection - electrically isolated; no internal bonding or circuitry attached |
| 6 | RF1 | Antenna connector terminal - completes differential RF input path; symmetric layout reduces process variation sensitivity |
Key Features
| Feature | Design Value |
|---|---|
| Parallel encoding mode | 100 tags encoded in 60 ms - eliminates sequential tag singulation overhead during high-volume label production |
| Tag Power Indicator | On-chip power threshold check before write - prevents failed encoding attempts in low-field zones on label rolls |
| Pre-serialized 96-bit EPC | EPC pre-loaded with TID-derived 48-bit serial number - reduces encoder command count by 50% for SKU-only updates |
| Integrated Product Status Flag (PSF) | Dedicated EAS alarm bit (20Fh) - enables electronic article surveillance without backend database lookup |
| Single-slit antenna compatibility | Optimized input capacitance profile - simplifies mechanical integration and improves bond reliability in thin-film inlays |
Applications
| Retail Apparel Inventory Management | FMCG Supply Chain Tracking |
|---|---|
Use Scenario: High-speed scanning of garment racks containing 50+ tagged items per shelf in automated backroom inventory audits. IC Role / Device Role / Timing Role: Passive UHF RFID transponder providing EPC Gen2-compliant air-interface communication and deterministic response timing under dense-reader interference. Use Value: -21 dBm read sensitivity enables >7 m detection range with compact patch antennas; parallel encoding cuts inlay personalization time by 92% vs. legacy UCODE 5. |
Use Scenario: Case-level tagging of fast-moving consumer goods pallets undergoing cross-dock verification at distribution centers. IC Role / Device Role / Timing Role: EPC-compliant tag IC supporting standardized Kill/Lock commands for chain-of-custody integrity and recall readiness. Use Value: Factory-locked 48-bit TID serial number ensures end-to-end traceability across ERP systems; 100k write cycles support dynamic lot/batch reassignment. |
| Electronic Article Surveillance (EAS) | High-Density Label Roll Encoding |
Use Scenario: Self-checkout kiosks detecting unauthorized removal of cosmetics or electronics using embedded PSF-enabled tags. IC Role / Device Role / Timing Role: RFID tag IC with dedicated Product Status Flag bit (20Fh) activated via standard EPC WRITE command to signal alarm state. Use Value: Eliminates need for separate EAS hard tags or backend database queries - alarm status is stored and readable directly from tag memory. |
Use Scenario: Continuous encoding of 10,000+ RFID inlays per hour on rotary label printers with tight spacing between adjacent tags on carrier web. IC Role / Device Role / Timing Role: Tag IC with Tag Power Indicator (204h) enabling reader-side selection of only powered-up tags during write operations. Use Value: Prevents cross-talk and miswrites in high-density roll configurations; verified operation at ≤1.5 mm inter-tag pitch without shielding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar UHF RFID tag IC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SL3S1203FTB0/1X | Lower read sensitivity (-19 dBm), no Tag Power Indicator or PSF bit; 96-bit EPC only (no 128-bit extension) | Suitable for cost-sensitive, low-interference retail applications where ultra-dense tag populations are not required | Select when budget constraints outweigh need for EAS functionality or maximum read range |
| SL900A1TTB0/1X | Integrated temperature sensor, 2 kB user EEPROM, higher power consumption; requires external capacitor for sensor operation | Targeted at cold-chain monitoring and reusable asset tracking-not optimized for high-speed bulk encoding | Choose only when environmental sensing or field-programmable memory is mandatory; not drop-in for SL3S1204FTB0/1X |
Compared with SL3S1203FTB0/1X, SL3S1204FTB0/1X adds 2 dB read sensitivity margin and EAS-ready PSF functionality; versus SL900A1TTB0/1X, it trades sensor capability for 40% lower quiescent current and 3× faster encoding throughput-making it optimal for high-volume, low-cost retail tagging.
Availability
SL3S1204FTB0/1X is available at Aetrix Electronics and suitable for retail apparel inventory management, FMCG supply chain tracking, and electronic article surveillance requiring stable component supply across global manufacturing sites.
Supply support for SL3S1204FTB0/1X includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with over 30 years of RFID innovation.
The UCODE family-including SL3S1204FTB0/1X-is engineered specifically for high-volume, high-reliability UHF RFID inlay manufacturing, emphasizing read/write performance, antenna design flexibility, and production-line encoding efficiency.
FAQ
What is the primary function of the SL3S1204FTB0/1X in an RFID system?
The SL3S1204FTB0/1X serves as a passive UHF RFID tag IC compliant with EPC Gen2 v2.0, converting RF energy from a reader into DC power and executing standardized commands for identification, data read/write, and security functions. Its core role is to provide deterministic, high-sensitivity communication in dense tag environments-enabling rapid inventory counts and reliable encoding in retail and logistics applications. SL3S1204FTB0/1X does not require an external power source and operates entirely from harvested RF energy.
Does the SL3S1204FTB0/1X support EPC Gen2 v2.0 features such as the Product Status Flag?
Yes, the SL3S1204FTB0/1X implements the Product Status Flag (PSF) as a permanent bit at memory address 20Fh in the EPC bank, enabling direct electronic article surveillance without backend database dependency. This feature is part of its EPC Gen2 v2.0 compliance and can be toggled using standard EPC WRITE commands when the EPC memory is unlocked or in SECURED state. SL3S1204FTB0/1X fully supports all mandatory Gen2 v1.2.0 commands and selected optional ones including ACCESS and BlockWrite.
How does the parallel encoding feature of the SL3S1204FTB0/1X reduce tag initialization time?
The SL3S1204FTB0/1X parallel encoding feature activates via a SELECT command to bit 202h, causing all responsive tags in the field to enter the OPEN state with handle AAAAh. Subsequent WRITE commands then apply simultaneously to all open tags-achieving 100-tag encoding in 60 ms. This eliminates per-tag singulation delays inherent in standard Gen2 inventory rounds. SL3S1204FTB0/1X requires reader firmware support for full parallel mode but remains backward-compatible with legacy readers using standard protocols.
What is the significance of the factory-locked 48-bit serial number in the SL3S1204FTB0/1X TID?
The SL3S1204FTB0/1X embeds a 48-bit unique serial number within its 96-bit factory-locked TID, ensuring irreversible device identity for traceability, anti-counterfeiting, and serialization compliance (e.g., GS1 EPC Tag Data Standard 1.6). This serial number is pre-encoded during wafer test and cannot be altered post-manufacture-even with kill password access. SL3S1204FTB0/1X leverages this for pre-serialization of the 96-bit EPC, reducing encoder workload during label personalization.
Can the SL3S1204FTB0/1X operate with a single-slit antenna design?
Yes, the SL3S1204FTB0/1X is explicitly designed for single-slit antenna compatibility, with optimized input capacitance and symmetric RF1/RF2 terminal placement that eases impedance matching and improves mechanical stability during inlay lamination. Its broadband RF architecture maintains best-in-class performance across 860–960 MHz globally, and the 1.0 × 1.45 mm SOT886 package supports ultra-thin, flexible label constructions. SL3S1204FTB0/1X has been validated with single-slit antennas in production-grade retail inlays.
SL3S1204FTB0/1X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 6-XFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- -
- Frequency:
- 860MHz ~ 960MHz
- Standards:
- EPC, ISO 15693, ISO 18000-6
- Interface:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-XSON, SOT886 (1.45x1)
SL3S1204FTB0/1X FAQ
1.How can I place an order for SL3S1204FTB0/1X through Aetrix?
Please submit a Request for Quotation (RFQ) for SL3S1204FTB0/1X on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SL3S1204FTB0/1X reliable?
The price and inventory of SL3S1204FTB0/1X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SL3S1204FTB0/1X is usually 5 days.
3.What payment methods are accepted for SL3S1204FTB0/1X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SL3S1204FTB0/1X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SL3S1204FTB0/1X?
SL3S1204FTB0/1X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SL3S1204FTB0/1X order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SL3S1204FTB0/1X?
For technical support, including SL3S1204FTB0/1X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SL3S1204FTB0/1X requirements.
6.How does Aetrix verify that SL3S1204FTB0/1X is sourced from the original manufacturer or authorized distributors?
All SL3S1204FTB0/1X products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SL3S1204FTB0/1X meets industry standards.
7.What is the process for return or replacement of SL3S1204FTB0/1X?
All SL3S1204FTB0/1X units undergo pre-shipment inspection (PSI). If there is an issue with SL3S1204FTB0/1X, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SL3S1204FTB0/1X part is unused and in its original packaging.
Return procedure for SL3S1204FTB0/1X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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