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Texas Instruments TRF7962ARHBT
- Part No.:
- TRF7962ARHBT
- Manufacturer:
- Texas Instruments
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
TRF7962ARHBT.pdf
- Description:
- IC RFID READER 13.56MHZ 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,295
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Product details
Overview
TRF7962ARHBT from Texas Instruments is a fully integrated 13.56-MHz RFID reader/writer IC supporting ISO/IEC 15693 and ISO/IEC 18000-3 Mode 1 protocols, with programmable output power up to +23 dBm (200 mW), dual-receiver architecture with RSSI, and parallel/SPI interface - deployed in digital door locks and medical identification systems.
For engineers reviewing the TRF7962ARHBT datasheet, TRF7962ARHBT pinout, TRF7962ARHBT application, or TRF7962ARHBT equivalent, key selection considerations include RF output power configuration, dual-RX noise immunity, ultra-low-power sleep mode (<0.5 µA), 32-pin QFN package compatibility, and support for NFC Forum Tag Type 5 via Direct Mode 2.
Technical Context
The TRF7962ARHBT integrates analog front-end (AFE) and protocol framing logic for 13.56-MHz RFID systems, featuring dual-input receivers with automatic/manual gain control and real-time RSSI reporting across both RX_IN1 and RX_IN2 inputs. Its transmitter supports OOK/ASK modulation with selectable depth and two discrete output power levels (100 mW or 200 mW into 50 Ω).
It implements on-chip voltage regulation for analog (VDD_A), RF power amplifier (VDD_RF), and digital/external supply (VDD_X), all derived from a single 2.7–5.5 V input. Communication occurs via SPI or 8-bit parallel interface, with 12-byte FIFO buffering when using built-in encoders/decoders - or raw subcarrier/data access in Direct Mode 0.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Frequency | 13.56 MHz carrier, fixed by external crystal - enables compliance with ISO/IEC 15693 and ISO/IEC 18000-3 standards. |
| RF Output Power | +20 dBm (100 mW) or +23 dBm (200 mW) into 50 Ω - selectable per register setting to optimize range vs. regulatory limits. |
| Supply Voltage Range | 2.7 V to 5.5 V at VIN - powers internal regulators and supports battery- or USB-powered portable readers. |
| Power-Down Current | <0.5 µA in Power Down Mode 1 - enables multi-year operation in battery-powered access control devices. |
| Receiver Sensitivity | 1.4 mVpp minimum at RX_IN1 (424 kHz subcarrier) - ensures reliable tag detection under low-field conditions. |
| Digital I/O Voltage | Programmable 1.8 V to 5.5 V via VDD_I/O - allows direct interfacing with 1.8-V microcontrollers or 5-V legacy systems. |
| Interface Options | SPI (up to 10 MHz) or 8-bit parallel - provides flexibility for MCU resource allocation and timing-critical firmware design. |
| Temperature Range | –25°C to +85°C ambient - validated for industrial and medical environments without derating. |
Pinout & Package
TRF7962ARHBT uses a 32-pin VQFN package (RHB), 5 mm × 5 mm, with exposed thermal pad connected to ground. Pin functions are validated per TI SLOS757G datasheet Section 4.2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 2) | Main power input | Supplies all internal regulators; must be highest voltage rail (2.7–5.5 V); bypass capacitor required. |
| TX_OUT (Pin 5) | RF output driver | Delivers modulated 13.56-MHz signal to antenna matching network; supports 100/200 mW output. |
| RX_IN1 / RX_IN2 (Pins 8, 9) | Dual receiver inputs | Enable simultaneous signal capture to eliminate read holes and reject adjacent-reader interference. |
| IRQ (Pin 13) | Interrupt request output | Active-low signal alerts MCU of frame completion, error, or RSSI threshold crossing. |
| I/O_0–I/O_7 (Pins 17–24) | Parallel data bus | Configurable as 8-bit bidirectional interface; also serve SPI signals (MOSI/MISO/SS) in serial mode. |
| EN / EN2 (Pins 28, 25) | Power control inputs | EN enables chip; EN2 selects between deep-sleep (PD1, <0.5 µA) and standby-with-clock (PD2, ~200 µA). |
| VDD_X (Pin 32) | Digital supply output | Regulated 2.7–3.4 V @ 20 mA - powers external MCU or logic, eliminating need for separate LDO. |
| OSC_IN / OSC_OUT (Pins 31, 30) | Clock oscillator interface | Drives external 13.56-MHz crystal; internal oscillator circuit requires no external components beyond crystal and load caps. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-receiver architecture with RSSI | Eliminates blind spots in field coverage and enables real-time ambient noise detection for adaptive polling. |
| Programmable output power (100/200 mW) | Allows optimization of read range versus EIRP compliance in region-specific deployments (e.g., FCC vs. ETSI). |
| Integrated triple-voltage regulators | Reduces BOM count by delivering VDD_A (analog), VDD_RF (PA), and VDD_X (digital/MCU) from single VIN rail. |
| Direct Mode 0/2 support | Enables full AFE control for custom protocols or NFC Forum Tag Type 5 decoding without host CPU overhead. |
| Ultra-low-power shutdown (<0.5 µA) | Extends battery life in portable authentication devices such as handheld asset scanners or smart locks. |
| 1.8–5.5 V I/O level shifting | Permits seamless integration with diverse MCUs (e.g., MSP430, ARM Cortex-M0+) without external level translators. |
Applications
| Access Control Systems | Digital Door Locks |
|---|---|
Use Scenario: Secure entry management for office buildings using contactless ISO 15693 credentials. IC Role / Device Role / Timing Role: Primary RFID reader IC handling protocol framing, modulation, and dual-channel demodulation. Use Value: Dual-receiver architecture prevents missed reads during rapid credential presentation near metal surfaces. | Use Scenario: Battery-powered residential smart locks requiring multi-year operation on coin cells. IC Role / Device Role / Timing Role: Low-power RFID transceiver managing tag interrogation, CRC validation, and secure command execution. Use Value: Sub-0.5 µA power-down current extends operational life beyond 5 years without battery replacement. |
| Medical Equipment ID | Library Asset Tracking |
Use Scenario: Identification of sterilized surgical instruments using ISO 15693 tags embedded in trays. IC Role / Device Role / Timing Role: Reader IC performing high-reliability, short-range interrogation in EMI-noisy hospital environments. Use Value: RSSI-based ambient noise detection triggers retransmission only when interference is present - improving throughput. | Use Scenario: Self-checkout kiosks scanning multiple library books simultaneously via vicinity reading. IC Role / Device Role / Timing Role: ISO 18000-3 Mode 1 reader enabling fast anti-collision and bulk inventory in shared RF fields. Use Value: Programmable 26 kbps data rate supports rapid tag enumeration without sacrificing error correction robustness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RFID reader applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TRF7964ARHBT | Supports ISO/IEC 14443 A/B in addition to 15693/18000-3; higher integration of NFC controller logic. | Better suited for dual-mode (NFC + vicinity) readers requiring card emulation or peer-to-peer modes. | Select TRF7964ARHBT if ISO 14443 or NFC Forum certification is required; TRF7962ARHBT remains optimal for cost-sensitive 15693-only systems. |
| SLRC610ATPH | STMicroelectronics device with integrated antenna driver; lower max output power (150 mW); supports same ISO standards. | Targeted at compact form-factor designs where board space is constrained and external PA is not used. | Choose SLRC610ATPH when minimizing external components is critical; TRF7962ARHBT offers superior power efficiency and deeper sleep modes. |
Compared with TRF7964ARHBT and SLRC610ATPH, TRF7962ARHBT delivers the lowest quiescent current in shutdown mode, highest RF output flexibility (200 mW), and most configurable regulator system - making it ideal for long-life, field-robust 13.56-MHz reader designs prioritizing power and noise resilience over multi-standard support.
Availability
TRF7962ARHBT is available at Aetrix Electronics and suitable for access control, digital door locks, and medical identification systems requiring stable component supply across extended production lifecycles.
Supply support for TRF7962ARHBT 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 over 50 years of innovation in industrial and automotive electronics.
The TRF7962ARHBT belongs to TI's TRF79xx RFID transceiver family, designed specifically for high-reliability, low-power 13.56-MHz reader/writer applications in security, healthcare, and asset management.
FAQ
What communication interfaces does the TRF7962ARHBT support?
The TRF7962ARHBT supports both SPI and 8-bit parallel interfaces. SPI operates up to 10 MHz with standard MOSI/MISO/SS/CLK signals mapped to I/O pins, while parallel mode uses I/O_0–I/O_7 as a bidirectional data bus with dedicated EN, DATA_CLK, and IRQ lines. Interface selection is configured via register settings, and both modes share the same 12-byte FIFO for framed data transfers.
Does the TRF7962ARHBT support NFC Forum Tag Type 5?
Yes, the TRF7962ARHBT supports NFC Forum Tag Type 5 through its built-in protocol decoders in Direct Mode 2. This capability is explicitly confirmed in the device description section of the SLOS757G datasheet. TRF7962ARHBT handles all framing, CRC, and modulation tasks required for Type 5 communication without host MCU intervention.
What is the minimum supply current in power-down mode for TRF7962ARHBT?
The TRF7962ARHBT achieves less than 0.5 µA supply current in Power Down Mode 1 (EN = 0, EN2 = 0), as specified in Section 5.4 of the SLOS757G datasheet. This ultra-low quiescent current is measured after 500-ms settling time and applies when all internal blocks-including voltage regulators-are disabled, making it suitable for energy-harvesting or long-life battery applications.
How does the dual-receiver architecture improve reliability in TRF7962ARHBT?
The TRF7962ARHBT's dual-receiver architecture uses independent RX_IN1 and RX_IN2 inputs with phase/amplitude detection and RSSI monitoring on both paths. This design eliminates "read holes" caused by antenna nulls and enables real-time detection of adjacent-reader interference or ambient in-band noise - allowing dynamic retransmission or frequency agility decisions in hostile RF environments.
Can TRF7962ARHBT operate with a 1.8-V microcontroller interface?
Yes, the TRF7962ARHBT supports 1.8-V I/O logic levels via its dedicated VDD_I/O supply pin (Pin 16), which accepts 1.8 V to 5.5 V. When VDD_I/O is set to 1.8 V, all I/O pins (I/O_0–I/O_7, IRQ, SYS_CLK, DATA_CLK) conform to 1.8-V logic thresholds, enabling direct connection to low-voltage MCUs without level-shifting circuitry.
What external components are required for TRF7962ARHBT crystal operation?
The TRF7962ARHBT requires an external 13.56-MHz fundamental-mode crystal connected between OSC_IN (Pin 31) and OSC_OUT (Pin 30), plus two load capacitors (typically 12–18 pF each) referenced to ground. The exact values depend on crystal specifications and PCB parasitics, and TI recommends verifying stability via the oscillator-ready bit (register 0x0F) during startup.
TRF7962ARHBT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- RFID Reader
- Frequency:
- 13.56MHz
- Standards:
- ISO 15693, ISO 18000-3
- Interface:
- SPI
- Voltage - Supply:
- 2.7V ~ 5.5V
- Operating Temperature:
- -25°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-VQFN (5x5)
TRF7962ARHBT FAQ
1.How can I place an order for TRF7962ARHBT through Aetrix?
Please submit a Request for Quotation (RFQ) for TRF7962ARHBT 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 TRF7962ARHBT reliable?
The price and inventory of TRF7962ARHBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TRF7962ARHBT is usually 5 days.
3.What payment methods are accepted for TRF7962ARHBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TRF7962ARHBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TRF7962ARHBT?
TRF7962ARHBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TRF7962ARHBT 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 TRF7962ARHBT?
For technical support, including TRF7962ARHBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TRF7962ARHBT requirements.
6.How does Aetrix verify that TRF7962ARHBT is sourced from the original manufacturer or authorized distributors?
All TRF7962ARHBT 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 TRF7962ARHBT meets industry standards.
7.What is the process for return or replacement of TRF7962ARHBT?
All TRF7962ARHBT units undergo pre-shipment inspection (PSI). If there is an issue with TRF7962ARHBT, 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 TRF7962ARHBT part is unused and in its original packaging.
Return procedure for TRF7962ARHBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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