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Home > Products > RF and Wireless > RFID, RF Access, Monitoring ICs

NXP Semiconductors HTRC11001T/02EE,11

Name: HTRC11001T/02EE,11
Brand: NXP Semiconductors
SKU: HTRC11001T/02EE,11
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: HTRC11001T/02EE,11

Manufacturer:: NXP Semiconductors

Category:: RFID, RF Access, Monitoring ICs

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: HTRC11001T/02EE,11.pdf

Description:: IC RFID READER 125KHZ 14SO

Quantity:: RFQ Add To RFQ list

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Product details

Overview

HTRC11001T/02EE from NXP Semiconductors is a 125 kHz RFID reader IC optimized for HITAG transponder communication, featuring adaptive sampling time (AST) demodulation, integrated antenna driver with 200 mAp continuous output, and programmable 4–16 MHz oscillator for precise 125 kHz carrier generation. It enables high-reliability livestock tracking and industrial access systems with on-chip antenna fault detection and ultra-low-power standby mode.

For engineers reviewing the HTRC11001T/02EE datasheet, HTRC11001T/02EE pinout, HTRC11001T/02EE application, or HTRC11001T/02EE equivalent, this page delivers verified technical context, SO14 package mapping, AST-based phase-compensated demodulation behavior, and real-world design implications for 125 kHz RF-ID reader development.

Technical Context

The HTRC11001T/02EE integrates a full-bridge antenna driver delivering ~10 Vpp excitation to a series-resonant LC tank at 125 kHz, with internal current limiting and real-time antenna rupture/short-circuit monitoring via ANTFAIL status bit. Its adaptive sampling time (AST) technique measures antenna phase shift (±5.7° accuracy) and dynamically adjusts demodulator sampling timing to compensate for detuning-eliminating need for precision-tolerance antennas.

It employs a synchronous AM/PM demodulator with programmable dual-stage filtering (3/6 kHz low-pass, 40/160 Hz high-pass), gain control (amplifier gains of 16/32 and 6.22/31.5), and smart comparator logic. The three-wire CMOS serial interface supports READ_TAG, WRITE_TAG_N, SET_SAMPLING_TIME, and GET_CONFIG_PAGE commands, with optional glitch filtering enabled by MODE pin configuration.

Key Specifications

Parameter	Value and Actual Design Meaning
Operating frequency	125 kHz carrier generated from 4–16 MHz programmable oscillator; enables stable low-frequency RFID read/write without external PLL.
Antenna driver output	200 mAp continuous, full-bridge topology; delivers ~10 Vpp square wave to resonant coil, supporting robust field strength in compact reader designs.
Demodulator sensitivity	1 mVPP at RX input; allows reliable detection of weak amplitude/phase-modulated signals from passive transponders at extended range.
Power consumption	7–20 μA in power-down mode; reduces system-level standby power for battery-operated readers and portable scanners.
Operating temperature	−40 °C to +85 °C; validated for deployment in uncontrolled industrial and outdoor environments including livestock barns and warehouse gates.
Package	SO14 (SOT108-1), 3.9 mm body width; surface-mount compatible with standard reflow profiles and automated assembly lines.
Interface	3-wire CMOS serial (SCLK/DIN/DOUT); supports bidirectional command/data exchange with microcontrollers, configurable as 2-wire via DIN/DOUT shorting.

Pinout & Package

Package: SO14 (SOT108-1), plastic small outline, 14-lead, 3.9 mm body width - fully compliant with JEDEC MS-012 and IEC 60191 standards.

Pin/Terminal	Circuit Role	Design Meaning
VSS	Ground reference	Primary digital/analog return path; must be connected to low-impedance PCB ground plane to ensure stable demodulator bias and noise immunity.
TX2	Antenna driver output	One half of full-bridge driver; connects directly to series-resonant LC antenna circuit; requires external flyback protection diode in high-current applications.
VDD	Supply input	5.0 V ±10% regulated supply; bypassed with 100 nF capacitor near pin to suppress switching noise from antenna driver and oscillator.
TX1	Antenna driver output	Second half of full-bridge driver; complements TX2 to generate differential drive across antenna coil for maximum magnetic field coupling.
MODE	Interface filter control	When tied to VDD, enables Schmitt-trigger filtering on SCLK/DIN for noise immunity over long traces (e.g., active antenna modules); GND for standard operation.
XTAL1 / XTAL2	Oscillator interface	Supports crystal (4–16 MHz), ceramic resonator, or external CMOS clock; determines carrier frequency division ratio for 125 kHz output.
SCLK / DIN / DOUT	Serial interface	CMOS-compatible 3-wire bus: SCLK (Schmitt-trigger input), DIN (Schmitt-trigger input), DOUT (open-drain with internal pull-up).
RX	Demodulator input	Accepts divided antenna tap signal (−8 V to +8 V w.r.t. QGND); internal 17–33 kΩ impedance sets AC coupling network for optimal signal scaling.
QGND	Analog ground bias	Separate analog reference point for RX and internal demodulator; must be isolated from noisy digital ground and tied to quiet analog plane.
CEXT	High-pass filter coupling	Connects external capacitor to set high-pass cutoff (40/160 Hz); critical for rejecting DC drift and low-frequency interference in AM/PM demodulation.

Key Features

Feature	Design Value
Adaptive Sampling Time (AST)	Measures antenna phase shift (360°/64 resolution) and auto-adjusts demodulator sampling point-enables reliable read/write with ±10% antenna tolerance, eliminating costly precision tuning.
Antenna diagnostics	Real-time monitoring of antenna tap voltage detects open/short faults and reports via ANTFAIL status bit-prevents false reads and enables self-healing reader firmware.
Programmable filter/amplifier	Four configuration pages allow dynamic adjustment of low-pass (3/6 kHz) and high-pass (40/160 Hz) cutoffs plus amplifier gains-optimizes signal chain for diverse transponder types and environmental noise.
Low-power modes	Idle mode draws ≤0.4 mA; power-down mode draws ≤20 μA-extends battery life in handheld scanners and solar-powered gate readers without sacrificing wake-up responsiveness.
Write pulse timing control	WRITE_TAG_N command supports programmable pulse widths (N × 8 μs, N = 0–15); relaxes MCU timing constraints while ensuring precise transponder programming pulses.

Applications

Livestock Tracking	Industrial Access Control
Use Scenario: Passive ear-tag readers mounted at feed troughs or gateways identify cattle during movement without line-of-sight. IC Role / Device Role / Timing Role: HTRC11001T/02EE serves as the RF front-end controller, generating 125 kHz excitation, demodulating tag responses via AST, and managing antenna health in dusty, humid barn environments. Use Value: Adaptive Sampling Time compensates for antenna detuning caused by metal structures and moisture, enabling >99.5% read reliability across seasonal temperature swings.	Use Scenario: Fixed-mount readers authenticate personnel badges at factory entrances using ISO/IEC 11784-compliant HITAG tags. IC Role / Device Role / Timing Role: HTRC11001T/02EE executes secure read/write sequences with programmable filter settings to reject EMI from nearby motors and welding equipment. Use Value: On-chip antenna rupture detection prevents silent failure during shift changes, and low-power standby extends uptime between maintenance cycles.
Logistics Asset Tagging	Tool & Equipment Management
Use Scenario: Handheld inventory scanners verify pallet IDs in warehouses where metal racks distort RF fields. IC Role / Device Role / Timing Role: HTRC11001T/02EE provides fast recovery (<500 μs) after write pulses and supports variable antenna tuning via AST-critical for rapid multi-tag interrogation in cluttered RF environments. Use Value: Programmable 4–16 MHz oscillator allows synchronization with host MCU clock, reducing BOM count and eliminating external crystal in cost-sensitive scanners.	Use Scenario: Tool cabinets use embedded readers to log check-in/check-out of calibrated instruments tagged with HITAG transponders. IC Role / Device Role / Timing Role: HTRC11001T/02EE operates in very low power stand-by mode (<20 μA), waking only upon proximity detection-enabling years of operation on coin-cell batteries. Use Value: Integrated smart comparator and amplitude comparison (AMPCOMP) enable adaptive thresholding for consistent read performance across varying tag orientations and distances.

Livestock Tracking

Industrial Access Control

Use Scenario: Passive ear-tag readers mounted at feed troughs or gateways identify cattle during movement without line-of-sight.

IC Role / Device Role / Timing Role: HTRC11001T/02EE serves as the RF front-end controller, generating 125 kHz excitation, demodulating tag responses via AST, and managing antenna health in dusty, humid barn environments.

Use Value: Adaptive Sampling Time compensates for antenna detuning caused by metal structures and moisture, enabling >99.5% read reliability across seasonal temperature swings.

Use Scenario: Fixed-mount readers authenticate personnel badges at factory entrances using ISO/IEC 11784-compliant HITAG tags.

IC Role / Device Role / Timing Role: HTRC11001T/02EE executes secure read/write sequences with programmable filter settings to reject EMI from nearby motors and welding equipment.

Use Value: On-chip antenna rupture detection prevents silent failure during shift changes, and low-power standby extends uptime between maintenance cycles.

Logistics Asset Tagging

Tool & Equipment Management

Use Scenario: Handheld inventory scanners verify pallet IDs in warehouses where metal racks distort RF fields.

IC Role / Device Role / Timing Role: HTRC11001T/02EE provides fast recovery (<500 μs) after write pulses and supports variable antenna tuning via AST-critical for rapid multi-tag interrogation in cluttered RF environments.

Use Value: Programmable 4–16 MHz oscillator allows synchronization with host MCU clock, reducing BOM count and eliminating external crystal in cost-sensitive scanners.

Use Scenario: Tool cabinets use embedded readers to log check-in/check-out of calibrated instruments tagged with HITAG transponders.

IC Role / Device Role / Timing Role: HTRC11001T/02EE operates in very low power stand-by mode (<20 μA), waking only upon proximity detection-enabling years of operation on coin-cell batteries.

Use Value: Integrated smart comparator and amplitude comparison (AMPCOMP) enable adaptive thresholding for consistent read performance across varying tag orientations and distances.

Equivalent & Alternatives

The following parts are listed as comparable options for similar RFID reader IC applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SLRC610/021,118	13.56 MHz HF reader IC with ISO/IEC 14443A/B support; no AST or 125 kHz capability; higher integration but incompatible frequency band.	Designed for contactless smart cards and NFC, not low-frequency animal ID or industrial metal-rich environments.	Select only if migrating to HF systems; not a functional substitute for 125 kHz HITAG infrastructure.
TRF7960ARHBT	Multi-band (125 kHz/13.56 MHz) reader IC with integrated LDO and SPI interface; lacks AST phase compensation and dedicated antenna fault reporting.	Supports broader protocol stack but requires external components for 125 kHz stability and has higher quiescent current (>100 μA in standby).	Choose when multi-frequency flexibility outweighs AST-driven reliability and ultra-low-power requirements of legacy 125 kHz deployments.

Compared with SLRC610/021,118 and TRF7960ARHBT, the HTRC11001T/02EE uniquely delivers adaptive phase-compensated demodulation at 125 kHz with sub-20 μA power-down current-making it irreplaceable for cost-sensitive, battery-powered, metal-immune livestock and industrial RFID readers requiring zero-tuning field deployment.

Availability

HTRC11001T/02EE is available at Aetrix Electronics and suitable for livestock tracking, industrial access control, and logistics asset tagging requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for OEM production programs.

Supply support for HTRC11001T/02EE 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 applications, with deep expertise in RFID and contactless technologies.

The HTRC11001T/02EE belongs to NXP's legacy HITAG reader IC family, engineered specifically for robust, low-cost 125 kHz RFID systems in harsh environments-prioritizing antenna tolerance, diagnostic integrity, and ultra-low-power operation over protocol versatility.

FAQ

What is the primary function of the HTRC11001T/02EE in an RFID system?

The HTRC11001T/02EE functions as a complete 125 kHz RFID reader front-end IC, integrating antenna driver, adaptive sampling time (AST) demodulator, programmable filters/amplifiers, and serial interface. It enables reliable read/write communication with HITAG and other AM/PM transponders while providing real-time antenna diagnostics and ultra-low-power operation-key for embedded livestock and industrial readers.

How does the Adaptive Sampling Time (AST) feature improve HTRC11001T/02EE performance?

The AST feature in the HTRC11001T/02EE measures the phase difference between antenna driver excitation and tap voltage (resolution ±5.7°) and dynamically adjusts demodulator sampling timing to compensate for antenna detuning. This eliminates sensitivity to coil tolerance, temperature drift, or nearby metal-enabling >99% read reliability without manual antenna tuning in applications like livestock tracking.

What are the power supply requirements for stable operation of the HTRC11001T/02EE?

The HTRC11001T/02EE requires a stabilized 5.0 V ±10% supply at VDD, with peak current up to 137 mA under full antenna drive. A 100 nF ceramic capacitor must be placed close to the VDD pin to suppress switching noise. In power-down mode, supply current drops to ≤20 μA-verified across −40 °C to +85 °C operating range.

Can the HTRC11001T/02EE interface with common microcontrollers?

Yes-the HTRC11001T/02EE uses a standard 3-wire CMOS serial interface (SCLK, DIN, DOUT) compatible with most 3.3 V or 5 V microcontrollers. DIN and SCLK are Schmitt-trigger inputs; DOUT is open-drain with internal pull-up. The interface can be configured as 2-wire by connecting DIN and DOUT, simplifying PCB routing in space-constrained designs.

What packaging and compliance information applies to the HTRC11001T/02EE?

The HTRC11001T/02EE is supplied in an SO14 package (SOT108-1), 3.9 mm body width, lead-free and RoHS-compliant. It meets JEDEC MS-012 and IEC 60191 mechanical standards, supports standard reflow soldering profiles, and is rated for industrial temperature range (−40 °C to +85 °C). No halogen-free or AEC-Q200 variants exist for this part number.

HTRC11001T/02EE,11 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: HITAG® 1

Package/Case:: 14-SOIC (0.154", 3.90mm Width)

Packaging:: Tube

Product Status:: Obsolete

Type:: RFID Reader

Frequency:: 125kHz

Standards:: -

Interface:: -

Voltage - Supply:: 4.5V ~ 5.5V

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SO

HTRC11001T/02EE,11 FAQ

1.How can I place an order for HTRC11001T/02EE,11 through Aetrix?

Please submit a Request for Quotation (RFQ) for HTRC11001T/02EE,11 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 HTRC11001T/02EE,11 reliable?

The price and inventory of HTRC11001T/02EE,11 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HTRC11001T/02EE,11 is usually 5 days.

3.What payment methods are accepted for HTRC11001T/02EE,11?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HTRC11001T/02EE,11 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HTRC11001T/02EE,11?

HTRC11001T/02EE,11 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HTRC11001T/02EE,11 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 HTRC11001T/02EE,11?

For technical support, including HTRC11001T/02EE,11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HTRC11001T/02EE,11 requirements.

6.How does Aetrix verify that HTRC11001T/02EE,11 is sourced from the original manufacturer or authorized distributors?

All HTRC11001T/02EE,11 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 HTRC11001T/02EE,11 meets industry standards.

7.What is the process for return or replacement of HTRC11001T/02EE,11?

All HTRC11001T/02EE,11 units undergo pre-shipment inspection (PSI). If there is an issue with HTRC11001T/02EE,11, 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 HTRC11001T/02EE,11 part is unused and in its original packaging.

Return procedure for HTRC11001T/02EE,11:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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