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Texas Instruments RF430CL330HTPWRQ1
- Part No.:
- RF430CL330HTPWRQ1
- Manufacturer:
- Texas Instruments
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
RF430CL330HTPWRQ1.pdf
- Description:
- IC RFID TRANSP 13.56MHZ 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,105
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Product details
Overview
RF430CL330HTPWRQ1 from Texas Instruments is a Dynamic NFC Interface Transponder compliant with NFC Tag Type 4 and ISO/IEC 14443B, integrating an on-chip 3 KB SRAM NDEF message memory, 13.56-MHz RF interface supporting up to 848 kbps, and dual-mode wired I²C/SPI host interface. It serves as a wireless handover bridge in Bluetooth pairing, Wi-Fi configuration, and diagnostic interfaces.
For engineers reviewing the RF430CL330HTPWRQ1 datasheet, RF430CL330HTPWRQ1 pinout, RF430CL330HTPWRQ1 application, or RF430CL330HTPWRQ1 equivalent, key selection criteria include NFC Type 4 compliance, 3 KB NDEF SRAM capacity, dual I²C/SPI host interface configurability, ISO14443B RF performance up to 848 kbps, and automotive-grade qualification (Q1 suffix).
Technical Context
The RF430CL330HTPWRQ1 implements a dual-interface architecture: its ISO14443B-compliant RF front-end handles wireless NDEF read/write at up to 848 kbps, while its MSP430-based processing unit manages wired communication via configurable I²C (up to 400 kHz) or SPI (up to 110 kHz). The device supports automatic NDEF structure validation and interrupt-driven status reporting via the INTO pin.
It integrates antenna tuning support (ANT1/ANT2), internal voltage regulation (VCORE), and programmable mode selection via E0/E1/E2 pins and SCMS/CS initialization logic. Its RF power harvesting circuit enables passive operation down to 2.0 V VCC under RF field excitation, with limiter clamping at 3.0–3.6 Vpk.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| NFC Standard | NFC Tag Type 4, ISO/IEC 14443B-2016 compliant - ensures interoperability with smartphones and readers supporting Type 4 protocol stack |
| NDEF Memory | 3 KB SRAM - provides sufficient space for complex NDEF records including Bluetooth OOB data, Wi-Fi credentials, or diagnostic logs |
| RF Data Rate | Up to 848 kbps - enables fast wireless handover of pairing tokens or configuration payloads |
| Host Interface | Selectable I²C (400 kHz max) or SPI (110 kHz max) - allows flexible integration with MCU peripherals without protocol translation |
| Operating Voltage | 2.0–3.6 V VCC - supports operation under weak RF field energy harvesting and standard 3.3 V system rails |
| Temperature Range | –40°C to +85°C - qualified for automotive and industrial environments per AEC-Q100 Grade 2 |
| Interrupt Output | INTO pin with register-flagged NDEF completion - enables low-latency host response to wireless access events |
Pinout & Package
TSSOP-14 (PW) package, 5.0 mm × 4.4 mm body size, exposed thermal pad (not electrically connected), RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | 3.3 V main supply; powers digital core and RF frontend; requires 0.1 µF + 1 µF decoupling |
| ANT1 / ANT2 | RF antenna interface | Differential 13.56 MHz LC resonant port; connects to external loop antenna with CTune/CIN tuning network |
| RST | Active-low reset input | Asynchronous hardware reset; integrated 20–50 kΩ pullup; must be held low ≥100 ns for valid reset |
| E0 / E1 / E2 | I²C address select / SPI mode config | Set I²C 7-bit address bits [2:0] or configure SPI clock polarity/phase (CPOL/CPHA) |
| INTO | Interrupt output | Open-drain, active-low signal indicating NDEF read/write completion or RF event; requires external pullup |
| SCMS/CS | Interface mode select / chip select | Sampled at power-up: low = I²C mode, high = SPI mode; functions as CS in SPI after initialization |
| SCK / SO/SCL / SI/SDA | SPI clock / I²C clock / bidirectional data | Shared pins: SCK (SPI), SO/SCL (SPI out / I²C clock), SI/SDA (SPI in / I²C data); no level-shifting required at 3.3 V |
| VCORE | Regulated core supply | Internally generated ~1.8 V supply for analog/RF blocks; requires 0.1–1 µF low-ESR capacitor to ground |
| VSS | Ground reference | Primary digital and RF return path; connect directly to PCB ground plane beneath exposed thermal pad |
Key Features
| Feature | Design Value |
|---|---|
| NFC Type 4 Compliance | Fully implements ISO/IEC 14443-4 T=CL protocol stack with chaining, block ACK, and error recovery - eliminates need for external protocol controller |
| Automatic NDEF Validation | Hardware-accelerated parsing verifies NDEF message structure (header, record count, type-length-value integrity) before host access - prevents corrupted data exposure |
| Dual-Mode Serial Interface | Single-pin SCMS/CS boot-time selection between I²C and SPI - simplifies BOM and layout by avoiding dedicated interface-specific variants |
| BIP-8 Error Detection | Bit-interleaved parity over 16-bit address + 16-bit data - detects single-bit errors in all register and NDEF memory accesses, enhancing firmware reliability |
| RF Energy Harvesting Support | Operates with VCC as low as 2.0 V when powered by RF field - enables true passive mode in battery-free sensor tags or diagnostic dongles |
Applications
| Bluetooth Pairing | Wi-Fi Configuration |
|---|---|
Use Scenario: Tap-to-pair Bluetooth audio devices or peripherals using NFC-enabled smartphones. IC Role / Device Role / Timing Role: Stores and delivers Bluetooth OOB (out-of-band) pairing data (BD_ADDR, TK, IO capability) via NDEF message upon RF field activation. Use Value: Eliminates manual PIN entry; reduces pairing time to <500 ms; leverages existing smartphone NFC infrastructure without firmware changes. |
Use Scenario: Provision Wi-Fi SSID and WPA2 passphrase to IoT gateways or smart home hubs via NFC tap. IC Role / Device Role / Timing Role: Hosts encrypted NDEF record containing network credentials; exposes them wirelessly while allowing secure host-side decryption via SPI/I²C. Use Value: Avoids QR code scanning or manual typing; prevents credential exposure in UI; supports zero-touch onboarding in field-deployed units. |
| Diagnostic Interface | Sensor Interface |
Use Scenario: Field technician taps NFC reader to retrieve vehicle ECU fault codes or calibration data from automotive modules. IC Role / Device Role / Timing Role: Acts as standardized diagnostic endpoint - stores UDS (ISO 14229) responses or DTC logs in NDEF format for wireless extraction. Use Value: Enables tool-less diagnostics; eliminates proprietary connectors; supports OEM-specific data structures within NDEF TLV records. |
Use Scenario: Battery-powered environmental sensor node uses RF430CL330HTPWRQ1 to expose temperature/humidity readings via NFC. IC Role / Device Role / Timing Role: Reads local sensor ADC values via SPI, formats as NDEF sensor record, and updates SRAM for wireless readout on demand. Use Value: Provides maintenance-free, contactless data access; extends battery life via ultra-low standby current (10–45 µA); avoids BLE radio overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NFC transponder applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ST25DV04K | 4 KB EEPROM NDEF memory; I²C-only interface; no SPI option; lower RF sensitivity (–12 dBm vs –15 dBm) | Preferred for cost-sensitive, EEPROM-based designs requiring long-term data retention without refresh | Choose ST25DV04K if EEPROM persistence outweighs need for SPI flexibility and higher RF link margin |
| NXH3670UK | Integrated NFC antenna; 2 KB SRAM; only SPI interface; supports ISO14443A/B; lacks BIP-8 and automatic NDEF validation | Suitable for compact, antenna-integrated modules where board space is constrained and protocol offload is handled externally | Choose NXH3670UK when antenna integration and minimal footprint supersede advanced NDEF validation and dual-interface flexibility |
Compared with ST25DV04K and NXH3670UK, RF430CL330HTPWRQ1 uniquely combines automotive-grade qualification, dual I²C/SPI host interface, hardware NDEF validation, and 3 KB SRAM - making it optimal for robust, field-serviceable handover applications requiring both wireless simplicity and wired control fidelity.
Availability
RF430CL330HTPWRQ1 is available at Aetrix Electronics and suitable for automotive diagnostics, wireless provisioning, industrial sensor tagging, and secure device onboarding requiring stable component supply across extended product lifecycles.
Supply support for RF430CL330HTPWRQ1 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 leadership in industrial, automotive, and communications markets.
The RF430CL330H product line delivers dynamic NFC transponders designed for secure, low-power wireless handover in automotive infotainment, diagnostic tools, and IoT edge devices - bridging legacy wired systems with modern smartphone-centric user experiences.
FAQ
What is the primary function of the RF430CL330HTPWRQ1?
The RF430CL330HTPWRQ1 is a Dynamic NFC Interface Transponder that enables wireless handover of data-such as Bluetooth pairing tokens or Wi-Fi credentials-between NFC-enabled smartphones and host systems. It integrates an ISO14443B-compliant RF interface, 3 KB SRAM for NDEF messages, and a dual-mode I²C/SPI host interface, allowing seamless wired-wireless data exchange without external protocol controllers. Its Q1 suffix confirms AEC-Q100 Grade 2 qualification for automotive use.
How does the RF430CL330HTPWRQ1 support both I²C and SPI interfaces?
The RF430CL330HTPWRQ1 selects its serial interface during power-up based on the logic level of the SCMS/CS pin: low enables I²C mode (with E0–E2 setting the 7-bit address), high enables SPI mode (with E0–E1 configuring CPOL/CPHA). After initialization, SCMS/CS becomes the chip select in SPI mode. This dual-mode capability allows one hardware design to support either interface without redesign, and the RF430CL330HTPWRQ1 maintains full register and NDEF memory access in both modes.
What does the 'Q1' suffix in RF430CL330HTPWRQ1 signify?
The 'Q1' suffix indicates that the RF430CL330HTPWRQ1 is qualified to AEC-Q100 Grade 2 standards, meaning it is certified for automotive applications with operating temperature range –40°C to +105°C junction (–40°C to +85°C ambient), enhanced reliability testing, and controlled manufacturing flow. This makes RF430CL330HTPWRQ1 suitable for under-hood and cabin-mounted modules where vibration, thermal cycling, and long-term stability are critical.
Can the RF430CL330HTPWRQ1 operate without a battery?
Yes, the RF430CL330HTPWRQ1 supports true passive operation: when exposed to an NFC reader's 13.56 MHz RF field, its internal rectifier and limiter generate sufficient power from ANT1/ANT2 to operate the RF frontend and SRAM, enabling VCC to drop as low as 2.0 V. In this mode, it can respond to wireless reads/writes and assert the INTO pin-making RF430CL330HTPWRQ1 ideal for battery-free diagnostic tags or sensor labels.
What is the purpose of the BIP-8 feature in the RF430CL330HTPWRQ1?
The BIP-8 (Bit-Interleaved Parity) feature in RF430CL330HTPWRQ1 provides hardware-level error detection for all register and NDEF memory accesses. When enabled, it calculates parity over each 16-bit address and 16-bit data word; mismatched BIP-8 causes the transaction to be ignored. This protects against bit flips in noisy industrial environments or during hot-plug SPI/I²C operations-ensuring RF430CL330HTPWRQ1 maintains data integrity without software checksum overhead.
RF430CL330HTPWRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- RFID Transponder
- Frequency:
- 13.56MHz
- Standards:
- ISO 14443
- Interface:
- I2C, SPI
- Voltage - Supply:
- 2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
RF430CL330HTPWRQ1 FAQ
1.How can I place an order for RF430CL330HTPWRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for RF430CL330HTPWRQ1 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 RF430CL330HTPWRQ1 reliable?
The price and inventory of RF430CL330HTPWRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RF430CL330HTPWRQ1 is usually 5 days.
3.What payment methods are accepted for RF430CL330HTPWRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RF430CL330HTPWRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RF430CL330HTPWRQ1?
RF430CL330HTPWRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RF430CL330HTPWRQ1 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 RF430CL330HTPWRQ1?
For technical support, including RF430CL330HTPWRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RF430CL330HTPWRQ1 requirements.
6.How does Aetrix verify that RF430CL330HTPWRQ1 is sourced from the original manufacturer or authorized distributors?
All RF430CL330HTPWRQ1 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 RF430CL330HTPWRQ1 meets industry standards.
7.What is the process for return or replacement of RF430CL330HTPWRQ1?
All RF430CL330HTPWRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with RF430CL330HTPWRQ1, 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 RF430CL330HTPWRQ1 part is unused and in its original packaging.
Return procedure for RF430CL330HTPWRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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