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Texas Instruments RF430CL331HIPWR
- Part No.:
- RF430CL331HIPWR
- Manufacturer:
- Texas Instruments
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
RF430CL331HIPWR.pdf
- Description:
- IC RFID TRANSP 13.56MHZ 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,684
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Product details
Overview
RF430CL331HIPWR from Texas Instruments is an NFC Type 4B dynamic dual-interface transponder integrating ISO/IEC 14443B RF and I²C interfaces. It functions as a contactless tag with wired host control, supports up to 848 kbps RF data rate, features 3000-byte SRAM buffer, and operates at 3.3 V supply. It enables NFC handover for Bluetooth® or Wi-Fi® pairing in portable electronics.
For engineers reviewing the RF430CL331HIPWR datasheet, RF430CL331HIPWR pinout, RF430CL331HIPWR application, or RF430CL331HIPWR equivalent, key selection criteria include ISO/IEC 14443B compliance, I²C address configurability via E0–E2 pins, pass-through operation for host-controlled NDEF updates, and absence of nonvolatile memory requiring external host persistence.
Technical Context
The RF430CL331HIPWR implements a Type 4B tag platform with full ISO/IEC 14443-3/4 protocol handling in hardware, offloading frame assembly, CRC calculation, and anticollision to the integrated MSP430-based processing unit. Its RF front end includes ASK demodulator, load modulator, and antenna limiter supporting 13.56 MHz carrier with 31.5–38.5 pF input capacitance.
I²C communication uses a 7-bit address (0x18 default) with programmable LSBs via E0–E2 inputs, supports clock stretching, and enforces BIP-8 parity mode optionally. The device operates in passive tag mode only-no peer-to-peer or reader/writer functionality-and relies entirely on host controller for NDEF message storage and management.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Standard | ISO/IEC 14443B compliant; enables interoperability with NFC smartphones and readers using Type 4B command set. |
| Max RF Data Rate | 848 kbps; supports high-speed NDEF exchange during tap interactions, though defaults to 106 kbps advertising unless reconfigured. |
| I²C Interface | Standard-mode (up to 400 kHz) and fast-mode (up to 120 kHz when addressed by non-stretching masters); enables host-driven NDEF read/write and status polling. |
| Buffer Memory | 3000-byte SRAM (0x0000–0x0BB7); stores partial NDEF message segments; no internal EEPROM/Flash-host must retain full NDEF payload. |
| Supply Voltage | 3.0–3.6 V (active), 2.0–3.6 V (RF field present); supports direct connection to 3.3-V system rails without level shifting. |
| ESD Rating | ±2000 V HBM; meets industrial-grade robustness requirements for handheld and consumer-facing NFC interfaces. |
| Package | TSSOP-14 (PW); 5 mm × 4.4 mm body size with exposed thermal pad; suitable for space-constrained PCB layouts. |
Pinout & Package
TSSOP-14 (PW) package with 5 mm × 4.4 mm body size and exposed thermal pad for thermal dissipation. Pin 1 is RST; pin 14 is VSS; pin 15 (NC) and pin 16 (NC) are not bonded in this variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin 1) | Power supply input | 3.3-V main supply rail; requires 0.1 µF + 1 µF low-ESR decoupling per datasheet Section 4.3. |
| ANT1 / ANT2 (Pins 2–3) | RF antenna interface | Differential antenna port; forms resonant LC tank with external coil and tuning capacitor (CRES ≈ 51.8 pF). |
| RST (Pin 4) | Active-low reset input | Asynchronous reset with integrated 20–50 kΩ pullup; asserts on power-up or external low pulse ≥100 ns. |
| E0–E2 (Pins 5–7) | I²C address select inputs | Set lower 3 bits of 7-bit I²C address (default 0x18); logic levels define unique slave address in multi-device systems. |
| INTO (Pin 8) | Interrupt output | Open-drain signal indicating RF command arrival or I²C-ready state change; requires external pullup. |
| I2C_READY (Pin 9) | I²C bus readiness indicator | Drives high when ready for I²C transaction; goes low during active communication or internal processing. |
| I2C_SIGNAL (Pin 10) | Wait time extension indicator | Signals automatic S(WTX) request to PCD; informs host that extended response time is needed for RF commands. |
| SCL / SDA (Pins 11–12) | I²C clock/data bidirectional lines | Compliant with standard I²C timing; support clock stretching and BIP-8 parity mode for error-resilient host communication. |
| VCORE (Pin 13) | Regulated core supply | Internally regulated 1.8-V supply for analog/RF blocks; requires 0.1–1 µF decoupling capacitor. |
| VSS (Pin 14) | Ground reference | Primary ground return path; connects to PCB ground plane; ties to exposed thermal pad for thermal conduction. |
Key Features
| Feature | Design Value |
|---|---|
| Pass-through operation | Host controller processes all NFC Type 4 commands; RF430CL331HIPWR relays requests and forwards responses without local interpretation. |
| Prefetching and caching | Reduces effective latency during sequential NDEF reads by preloading adjacent buffer segments into internal pipeline registers. |
| Auto ACK for I²C writes | Hardware-generated acknowledgment after successful SRAM write; eliminates need for host-side status polling on every transaction. |
| Dynamic NDEF sizing | NDEF message length limited only by host memory-not device SRAM-enabling scalable payloads beyond 3 KB via streaming architecture. |
| RF interrupt signaling | INTO pin asserts on RF command arrival; allows host to wake from low-power state precisely when NFC interaction begins. |
Applications
| Wireless Firmware Updates | Wi-Fi® and Bluetooth® Pairing |
|---|---|
Use Scenario: Field-upgrading firmware in IoT edge nodes via NFC tap from smartphone. IC Role / Device Role / Timing Role: Dual-interface transponder bridging smartphone RF interface and MCU's I²C bus to stream encrypted firmware chunks. Use Value: Eliminates need for USB debug ports or BLE provisioning stacks; enables secure, user-initiated updates without network dependency. |
Use Scenario: Initiating secure pairing between smart speaker and mobile app with single NFC tap. IC Role / Device Role / Timing Role: NFC handover agent providing cryptographic handshake parameters (e.g., SSID, credentials) to host MCU over I²C before switching to Wi-Fi®. Use Value: Reduces pairing time from >30 s to <2 s; prevents credential exposure via unencrypted QR codes or manual entry. |
| Wireless Sensor Interfaces | Service Interface |
Use Scenario: Reading calibration data or sensor health metrics from industrial sensor node using technician's NFC-enabled tablet. IC Role / Device Role / Timing Role: Contactless data gateway storing sensor metadata and diagnostics in SRAM buffer; updated dynamically by host MCU via I²C. Use Value: Enables maintenance without opening enclosures or connecting cables; supports rapid batch verification across deployed units. |
Use Scenario: Providing service technicians quick access to device serial number, manufacturing date, and configuration flags via NFC scan. IC Role / Device Role / Timing Role: Static NDEF tag emulator with host-managed content; serves as tamper-resistant identity and traceability anchor. Use Value: Replaces printed labels prone to wear; integrates seamlessly into existing NFC-enabled service workflows and asset tracking systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NFC transponder applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RF430CL330H | Same architecture but lacks I²C_SIGNAL pin and S(WTX) auto-request capability; smaller 2-KB SRAM buffer. | Not suitable for applications requiring guaranteed RF response timing negotiation with PCD. | Select RF430CL330H only if host can manage fixed timeout windows and NDEF payloads ≤2 KB. |
| NT3H2111W0FHKH | NXP part with 2-KB EEPROM, ISO/IEC 14443A/B dual-standard support, and integrated crypto engine; no I²C pass-through mode. | Self-contained NDEF storage; no host MCU required for basic tag operation-but loses dynamic host-controlled update flexibility. | Choose NT3H2111W0FHKH when persistent, standalone tag behavior is preferred over host-managed streaming. |
Compared with RF430CL331HIPWR, RF430CL330H reduces buffer depth and removes critical timing negotiation signals, while NT3H2111W0FHKH trades host dependency for embedded security and nonvolatility-making RF430CL331HIPWR uniquely suited for host-coordinated, high-throughput NFC handover scenarios.
Availability
RF430CL331HIPWR is available at Aetrix Electronics and suitable for wireless pairing, NFC firmware updates, and secure service interface applications requiring stable component supply across production lifecycles.
Supply support for RF430CL331HIPWR 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
Texas Instruments is a global semiconductor company specializing in analog, embedded processing, and connectivity technologies, with decades of leadership in NFC and RFID interface solutions.
The RF430CL331HIPWR belongs to TI's Dynamic NFC/RFID Interface Transponder product line, designed specifically to enable seamless wireless handover between NFC and alternative wireless protocols in battery-powered and space-constrained devices.
FAQ
Does RF430CL331HIPWR include nonvolatile memory for persistent NDEF storage?
No, RF430CL331HIPWR contains only 3000-byte volatile SRAM. All NDEF data is lost upon power removal. The device relies on the host controller to maintain full NDEF message persistence and reconstruct buffer contents on power-up. This architecture enables dynamic, host-managed NDEF updates but requires external memory or cloud synchronization for retention.
What is the function of the I2C_SIGNAL pin on RF430CL331HIPWR?
The I2C_SIGNAL pin on RF430CL331HIPWR indicates automatic wait time extension (S(WTX)) requests sent to the PCD. When asserted low, it signals that RF430CL331HIPWR needs additional time to process an RF command-allowing the host to coordinate timing without polling status registers. This feature ensures reliable command handling under variable host load conditions.
Can RF430CL331HIPWR operate in ISO/IEC 14443A mode?
No, RF430CL331HIPWR is strictly ISO/IEC 14443B-compliant and does not support Type A protocol. It cannot communicate with readers or smartphones that only implement 14443A. Compatibility is limited to NFC Forum-certified Type 4B devices and 14443B readers, such as most modern Android smartphones with NFC enabled.
How is the I²C address configured on RF430CL331HIPWR?
The I²C address of RF430CL331HIPWR is a 7-bit value where bits [6:4] are hard-coded as 0011b and bits [2:0] are set by the logic levels on E0 (pin 5), E1 (pin 6), and E2 (pin 7). With all three pins grounded, the default address is 0x18. This allows up to eight RF430CL331HIPWR devices on the same I²C bus with unique addressing.
Is RF430CL331HIPWR capable of peer-to-peer (P2P) or reader/writer mode operation?
No, RF430CL331HIPWR operates exclusively in passive tag mode per ISO/IEC 14443B. It cannot initiate RF communication, act as an NFC reader, or participate in peer-to-peer exchanges. All RF activity is driven by an external PCD (e.g., smartphone), and RF430CL331HIPWR responds via load modulation only.
RF430CL331HIPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- RFID Transponder
- Frequency:
- 13.56MHz
- Standards:
- ISO 14443
- Interface:
- I2C
- Voltage - Supply:
- 2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
RF430CL331HIPWR FAQ
1.How can I place an order for RF430CL331HIPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for RF430CL331HIPWR 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 RF430CL331HIPWR reliable?
The price and inventory of RF430CL331HIPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RF430CL331HIPWR is usually 5 days.
3.What payment methods are accepted for RF430CL331HIPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RF430CL331HIPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RF430CL331HIPWR?
RF430CL331HIPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RF430CL331HIPWR 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 RF430CL331HIPWR?
For technical support, including RF430CL331HIPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RF430CL331HIPWR requirements.
6.How does Aetrix verify that RF430CL331HIPWR is sourced from the original manufacturer or authorized distributors?
All RF430CL331HIPWR 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 RF430CL331HIPWR meets industry standards.
7.What is the process for return or replacement of RF430CL331HIPWR?
All RF430CL331HIPWR units undergo pre-shipment inspection (PSI). If there is an issue with RF430CL331HIPWR, 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 RF430CL331HIPWR part is unused and in its original packaging.
Return procedure for RF430CL331HIPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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