NXP Semiconductors HTSH5601ETK,118

Overview

HTSH5601ETK,118 from NXP Semiconductors is a 256-bit contactless RFID transponder IC operating at 100–150 kHz, featuring integrated 210 pF resonance capacitance (±5%), ISO 11784/85 compliance, and 48-bit encrypted authentication for secure animal identification and industrial logistics applications.

For engineers reviewing the HTSH5601ETK,118 datasheet, HTSH5601ETK,118 pinout, HTSH5601ETK,118 application, or HTSH5601ETK,118 equivalent, this page delivers verified technical context, memory organization, security mode behavior, read/write endurance (100,000 cycles), and HVSON2 package integration details essential for tag module design and reader interoperability validation.

Technical Context

The HTSH5601ETK,118 implements a passive inductive coupling interface with no external power supply required - energy and clock are derived from the reader's magnetic field via resonant circuitry. Its analog RF front-end includes rectification, voltage regulation, and ASK demodulation for Reader Talks First (RTF) mode, plus strong ASK modulation with Manchester/Bi-phase coding for transponder-to-reader transmission.

Digital control supports two operational modes: Plain Mode (unsecured UID + configuration access) and Authentication Mode (48-bit secret key challenge-response). Memory access uses Page (32-bit) or Block (4-page) addressing, with CRC-8 protection on all commands and data transfers, and supports Transponder Talks First (TTF) with user-defined data length and rate selection (2/4/8 kbit/s).

Key Specifications

Pinout & Package

HTSH5601ETK,118 is housed in an HVSON2 package (SOT899-1): 2-terminal, leadless, thermally enhanced outline measuring 3.0 × 2.0 × 0.85 mm. The device has no dedicated VDD/GND pins - power is harvested inductively across its two terminals.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar contactless transponder IC applications.

Compared with HTSH4801ETK and HTSICH5601EW/V7, the HTSH5601ETK,118 delivers optimal balance of compact HVSON2 packaging, proven 256-bit memory sufficiency for UID+config use cases, and drop-in compatibility with existing ISO 11784/85 reader ecosystems - reducing qualification time for animal ID and industrial tagging programs.

Availability

HTSH5601ETK,118 is available at Aetrix Electronics and suitable for animal identification, laundry automation, and beer keg logistics requiring stable component supply, long-term lifecycle support, and ISO-compliant RFID performance.

Supply support for HTSH5601ETK,118 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 deep expertise in RFID, NFC, and automotive microcontrollers.

The HITAG S product line - including HTSH5601ETK,118 - was designed specifically for cost-sensitive, high-reliability contactless identification in animal ID, industrial asset tracking, and brand protection, extending legacy infrastructure while adding encryption and memory scalability.

FAQ

What is the primary function of the HTSH5601ETK,118 in an RFID system?

The HTSH5601ETK,118 serves as a passive contactless transponder IC that derives power and clock from a reader's magnetic field, stores a 32-bit UID and 256-bit application data in EEPROM, and supports secure authentication and anticollision protocols. It operates without batteries and is fully compliant with ISO 11784/85 - making it ideal for implantable and embedded RFID tags where size, reliability, and regulatory alignment are critical. The HTSH5601ETK,118 integrates a 210 pF capacitor to simplify antenna design and reduce bill-of-materials cost.

Does the HTSH5601ETK,118 require an external capacitor for resonance tuning?

No, the HTSH5601ETK,118 includes an integrated 210 pF resonance capacitor with ±5% tolerance across full production, eliminating the need for an external capacitor in the LC tank circuit. This reduces component count, PCB area, and tuning sensitivity in tag antenna design - especially valuable in space-constrained applications like ear tags or leg bands. The HTSH5601ETK,118 is specified to operate optimally with Qcoil = 20 and Lcoil = 7.5 mH, and its input capacitance is validated per Table 1 and Table 21 of the official short data sheet.

How does the HTSH5601ETK,118 support secure authentication in animal ID systems?

The HTSH5601ETK,118 implements a 48-bit secret key challenge-response protocol: upon SELECT (UID) command, the reader sends a 32-bit random number and encrypted secret stream; the HTSH5601ETK,118 computes and returns a 32-bit secret response derived from its internal key and configuration bytes. This prevents cloning and unauthorized memory access. Authentication Mode is enabled via Bit AUT in the configuration page, and keys are stored in protected EEPROM sectors - ensuring tamper resistance required for regulatory-compliant livestock tracking. The HTSH5601ETK,118 supports both Plain and Authentication Modes without hardware change.

What are the memory organization and access methods supported by the HTSH5601ETK,118?

The HTSH5601ETK,118 organizes its 256-bit EEPROM into 64 pages of 32 bits each (4 bytes per page), accessible via READ PAGE, WRITE PAGE, READ BLOCK, or WRITE BLOCK commands. Page addressing ranges from 0x00 to 0x3F, and Block access covers groups of four consecutive pages. All operations include CRC-8 error checking, and the IC supports fast anticollision sequencing for multi-tag environments. Memory endurance is rated at 100,000 write cycles with 10-year data retention at ≤55 °C - validated per Table 1 and Table 21 in the HTSH5601ETK,118 datasheet.

Can the HTSH5601ETK,118 be used in metal-rich environments such as beer keg tracking?

Yes, the HTSH5601ETK,118 is well-suited for metal-proximate applications due to its 125 kHz nominal operating frequency (100–150 kHz range), which provides deeper magnetic field penetration and reduced detuning effects compared to HF/UHF RFID. Its HVSON2 package (3.0 × 2.0 × 0.85 mm) enables compact, robust inlay integration onto stainless-steel kegs, and the integrated 210 pF capacitor maintains resonance stability despite parasitic coupling. Field tests confirm reliable read ranges up to 15 cm with optimized coil geometry - making the HTSH5601ETK,118 a proven choice for beverage logistics and industrial asset tracking.