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NXP Semiconductors SL3S1204FUD/BG1AZ
- Part No.:
- SL3S1204FUD/BG1AZ
- Manufacturer:
- NXP Semiconductors
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- -
- Datasheet:
-
SL3S1204FUD/BG1AZ.pdf
- Description:
- IC UCODE SMART LABEL UNCASED
- Quantity:
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Inventory:3,600
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Product details
Overview
SL3S1204FUD/BG1AZ from NXP Semiconductors is a UCODE 7 EPC Gen2 v2.0-compliant passive UHF RFID IC in bumped die wafer form, designed for high-density retail and fashion inventory tagging. It delivers -21 dBm read sensitivity, -16 dBm write sensitivity, pre-serialized 96-bit EPC with factory-locked 48-bit TID serial number, and supports parallel encoding of 100 tags in 60 ms for rapid bulk initialization.
For engineers reviewing the SL3S1204FUD/BG1AZ datasheet, SL3S1204FUD/BG1AZ pinout, SL3S1204FUD/BG1AZ application, or SL3S1204FUD/BG1AZ equivalent, this page provides verified technical context, wafer-level package details, memory architecture, EAS-ready Product Status Flag implementation, and real-world deployment guidance for label manufacturers and RFID system integrators.
Technical Context
The SL3S1204FUD/BG1AZ implements a fully compliant EPCglobal Class-1 Generation-2 UHF RFID air interface (860–960 MHz), with analog RF front-end optimized for broadband global regulatory operation. Its CMOS 0.14 μm process enables stable rectification and demodulation at ultra-low power thresholds, supporting single-slit antenna designs and loop antenna configurations via DC-coupled RF1/RF2 terminals.
Digital control logic executes mandatory EPC Gen2 v1.2.0 commands-including Kill, PermaLock, Access, and BlockWrite-while enabling UCODE 7–specific features via standard SELECT commands to configuration word addresses (e.g., 202h for Parallel Encoding, 204h for Tag Power Indicator). The EEPROM-based memory includes three banks: Reserved (64-bit passwords), EPC (up to 128-bit), and TID (96-bit factory-locked with 48-bit unique serial number).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Read sensitivity | -21 dBm - Enables longest possible read range under low-field conditions, critical for dense shelf scanning. |
| Write sensitivity | -16 dBm - Allows reliable encoding at reduced reader power, lowering thermal stress on inlays during high-speed label production. |
| EPC memory size | Up to 128 bits - Supports extended EPC formats including GS1-compliant structures for global supply chain traceability. |
| TID structure | 96-bit factory-locked, including 48-bit unique serial number - Provides immutable device identity for anti-counterfeiting and asset tracking. |
| Parallel encoding speed | 100 items in 60 ms - Reduces bulk tag initialization time by >90% vs. sequential encoding, accelerating label conversion lines. |
| Operating temperature | -40 °C to +85 °C - Ensures reliable operation across warehouse, retail, and logistics environments without derating. |
| Write endurance | 100,000 cycles - Sustains repeated reprogramming in reusable asset management applications. |
Pinout & Package
SL3S1204FUD/BG1AZ is supplied as a bumped die on an 8-inch, 120 μm-thick silicon wafer with 7 μm polyimide spacer. Die dimensions are 0.490 mm × 0.445 mm. Four gold bumps (60 × 60 μm) are located at chip corners: RF1 and RF2 serve as symmetric antenna connection terminals; TP1 and TP2 are test pads electrically disconnected after dicing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RF1 | Antenna connector 1 | Primary RF input/output terminal; enables DC-coupled antenna topologies including single-slit and loop designs. |
| RF2 | Antenna connector 2 | Secondary RF terminal; symmetric placement improves impedance matching tolerance and reduces process variation impact. |
| TP1 | Test pad 1 | Pre-dicing probe point for wafer-level functional testing; electrically isolated post-dicing. |
| TP2 | Test pad 2 | Pre-dicing probe point for wafer-level functional testing; electrically isolated post-dicing. |
Key Features
| Feature | Design Value |
|---|---|
| Tag Power Indicator | Enables reader-side power validation before write attempts-prevents failed encodes in marginal field zones and eliminates retries in high-throughput label encoding. |
| Product Status Flag (PSF) | Hardware-supported EAS alarm bit (permanent bit at EPC address 20Fh) allows standalone electronic article surveillance without backend database lookup. |
| Pre-serialized 96-bit EPC | Factory-programmed EPC includes 48-bit TID serial number-reduces on-site encoding to SKU-only writes, cutting initialization time and firmware complexity. |
| Parallel encoding mode | Single SELECT command (202h) places multiple tags into OPEN state with shared handle-enables simultaneous WRITE operations across dense populations. |
| Broadband RF design | Optimized for worldwide UHF regulations (US, EU, JP, CN, KR)-supports true global label manufacturing without regional variants or tuning adjustments. |
Applications
| Retail Apparel Inventory Management | FMCG Supply Chain Tracking |
|---|---|
|
Use Scenario: High-volume garment tagging in fast-fashion distribution centers, where thousands of SKUs require rapid, error-free encoding prior to shipment. IC Role / Device Role / Timing Role: Passive UHF RFID transponder providing EPC Gen2 v2.0–compliant air-interface communication, with pre-serialized EPC and parallel encoding to accelerate throughput. Use Value: Achieves 100-tag encoding in 60 ms using standard readers-cutting line downtime and enabling real-time inventory synchronization across global hubs. |
Use Scenario: Case-level and pallet-level tagging of fast-moving consumer goods across multi-tiered logistics networks, requiring tamper-resistant identification and EAS integration. IC Role / Device Role / Timing Role: UHF RFID IC implementing Product Status Flag for autonomous EAS triggering and factory-locked TID for unalterable origin traceability. Use Value: Eliminates need for centralized EAS databases while ensuring GS1-compliant serialization-reducing IT overhead and enabling instant loss prevention at store exits. |
| Electronic Article Surveillance (EAS) | Reusable Asset Management |
|
Use Scenario: Embedding in high-value cosmetics, jewelry, or electronics packaging to deter theft without requiring proprietary infrastructure or backend integration. IC Role / Device Role / Timing Role: RFID transponder with hardware-enabled PSF bit (EPC address 20Fh) that triggers alarm when activated by compatible gate readers. Use Value: Delivers drop-in EAS capability using existing UHF infrastructure-no custom firmware, no middleware changes, and zero dependency on cloud services. |
Use Scenario: Tagging returnable transport items (RTIs), medical equipment, or industrial tools subjected to repeated sterilization, cleaning, and mechanical stress. IC Role / Device Role / Timing Role: Ruggedized UHF IC with 100,000 write cycles, -40 °C to +85 °C operation, and 120 μm thin-wafer construction for embedding in durable composite inlays. Use Value: Survives >500 autoclave cycles and harsh warehouse handling-ensuring consistent read performance over 5+ years of reuse without replacement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar UHF RFID transponder applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SL3S1204FTB0/1 | Same UCODE 7 die in SOT886 plastic package (1 × 1.45 × 0.5 mm); 6-pin layout with RF1/RF2 only active; no test pads. | Designed for surface-mount label antennas or embedded modules-not wafer-level inlay integration. | Select for PCB-mounted RFID solutions or prototyping where bump bonding is impractical. |
| SL900A | Active sensor RFID IC with integrated temperature/logic; 13.56 MHz HF interface; no EPC Gen2 compliance; requires battery or energy harvesting. | Targeted at sensor-augmented traceability (e.g., cold chain monitoring), not pure inventory or EAS use cases. | Select only when environmental sensing or HF compatibility is required-otherwise incompatible with UHF infrastructure. |
Compared with SL3S1204FTB0/1, SL3S1204FUD/BG1AZ offers direct wafer-level integration for ultra-thin, cost-optimized inlays; compared with SL900A, it delivers pure EPC Gen2 v2.0 performance without sensor overhead or HF dependencies-making it optimal for high-speed, global-scale retail and logistics deployments.
Availability
SL3S1204FUD/BG1AZ is available at Aetrix Electronics and suitable for retail apparel inventory management, FMCG supply chain tracking, and electronic article surveillance applications requiring stable component supply, wafer-level scalability, and long-term EPC Gen2 compliance.
Supply support for SL3S1204FUD/BG1AZ 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, with core expertise in RFID, NFC, automotive MCUs, and secure authentication ICs.
The UCODE product line was engineered specifically for high-performance, globally compliant UHF RFID tagging-prioritizing read/write sensitivity, memory flexibility, and manufacturability for label converters and smart packaging OEMs.
FAQ
What is the physical form of SL3S1204FUD/BG1AZ?
SL3S1204FUD/BG1AZ is delivered as a bumped die on an 8-inch, 120 μm-thick silicon wafer with 7 μm polyimide spacer. It features four corner-placed gold bumps (60 × 60 μm): RF1 and RF2 for antenna connection, and TP1/TP2 for wafer-level testing. TP1 and TP2 are electrically disconnected after dicing, leaving only RF1 and RF2 functional in final inlays.
Does SL3S1204FUD/BG1AZ support EPC Gen2 v2.0?
Yes, SL3S1204FUD/BG1AZ is EPC Gen2 v2.0 ready and fully implements all mandatory commands from EPCglobal Class-1 Generation-2 UHF RFID specification v1.2.0-including Kill, PermaLock, Access, and BlockWrite-as well as optional features like Product Status Flag and Tag Power Indicator via standard SELECT commands to the configuration word.
How does the Tag Power Indicator function in SL3S1204FUD/BG1AZ?
The Tag Power Indicator in SL3S1204FUD/BG1AZ is activated by issuing a SELECT command to EPC memory address 204h. It performs an internal power check against nominal write sensitivity minus 1 dB. If sufficient power is present, the SELECT matches; otherwise, it fails-allowing readers to filter out marginally powered tags before attempting writes, thereby eliminating retries and improving encoding yield.
Can SL3S1204FUD/BG1AZ be used for Electronic Article Surveillance (EAS)?
Yes, SL3S1204FUD/BG1AZ includes a dedicated Product Status Flag (PSF) bit at EPC address 20Fh-a permanent, hardware-enforced flag that enables EAS functionality without backend database integration. When set, compatible UHF gate readers detect the flag and trigger alarms autonomously, making SL3S1204FUD/BG1AZ suitable for standalone loss prevention systems.
What memory organization does SL3S1204FUD/BG1AZ implement?
SL3S1204FUD/BG1AZ implements three memory banks per EPCglobal spec: Bank 00 (64-bit reserved for kill/access passwords), Bank 01 (128-bit EPC plus 16-bit configuration word), and Bank 10 (96-bit TID with factory-locked 48-bit serial number). The configuration word at EPC address 200h controls features like Parallel Encoding (bit 202h) and Tag Power Indicator (bit 204h).
SL3S1204FUD/BG1AZ Specifications
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- NXP Semiconductors
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SL3S1204FUD/BG1AZ FAQ
1.How can I place an order for SL3S1204FUD/BG1AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for SL3S1204FUD/BG1AZ 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 SL3S1204FUD/BG1AZ reliable?
The price and inventory of SL3S1204FUD/BG1AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SL3S1204FUD/BG1AZ is usually 5 days.
3.What payment methods are accepted for SL3S1204FUD/BG1AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SL3S1204FUD/BG1AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SL3S1204FUD/BG1AZ?
SL3S1204FUD/BG1AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SL3S1204FUD/BG1AZ 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 SL3S1204FUD/BG1AZ?
For technical support, including SL3S1204FUD/BG1AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SL3S1204FUD/BG1AZ requirements.
6.How does Aetrix verify that SL3S1204FUD/BG1AZ is sourced from the original manufacturer or authorized distributors?
All SL3S1204FUD/BG1AZ 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 SL3S1204FUD/BG1AZ meets industry standards.
7.What is the process for return or replacement of SL3S1204FUD/BG1AZ?
All SL3S1204FUD/BG1AZ units undergo pre-shipment inspection (PSI). If there is an issue with SL3S1204FUD/BG1AZ, 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 SL3S1204FUD/BG1AZ part is unused and in its original packaging.
Return procedure for SL3S1204FUD/BG1AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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