NXP Semiconductors PN7642EV/C101K

Overview

PN7642EV/C101K from NXP Semiconductors is a single-chip NFC controller integrating an Arm Cortex-M33 MCU (45 MHz), hardware-accelerated symmetric/asymmetric cryptography, and a high-power 2.0 W NFC frontend supporting ISO14443-A/B, FeliCa, ISO15693, and card emulation. It delivers secure contactless authentication for access control terminals operating at -40 °C to +85 °C with full RF output power.

For engineers reviewing the PN7642EV/C101K datasheet, PN7642EV/C101K pinout, PN7642EV/C101K application, or PN7642EV/C101K equivalent, this page provides verified technical context, validated VFBGA64 pin mapping, confirmed firmware version 2.00 with pinless-download mode, and real-world design implications of DPC 2.0, AWC, and ULPCD features.

Technical Context

The PN7642EV/C101K implements a tightly coupled architecture where the Cortex-M33 core (45 MHz) directly controls the NFC frontend via dedicated DMA channels and hardware crypto accelerators-enabling autonomous EMD error handling and dynamic power control without CPU intervention. Its integrated DC-DC boost converter (up to 6.0 V) and transmitter LDO (100 mV granularity) enable stable 2.0 W RF output even under battery voltage droop.

RF signal integrity is maintained through synchronized DC-DC clocking, true current measurement for DPC 2.0, adaptive waveshape control for antenna detuning compensation, and a noise-resilient receiver with 10-bit ADC, AGC, and RSSI-based automatic gain adjustment-optimized for coexistence with TFT displays and DC-DC converters.

Key Specifications

Pinout & Package

VFBGA64 package: plastic thin fine-pitch ball grid array, 4.5 × 4.5 × 0.9 mm, MSL Level 3. All supply GND pins require low-ohmic PCB connections; blocking capacitors must be placed on same PCB side with minimal trace length.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar NFC controller applications.

Compared with PN7642EV/C101K, the C100 variant lacks pinless firmware update capability-requiring hardware modification for field upgrades-while the C102 adds certified enhancements to ECP and crypto agility but may incur longer qualification cycles for existing designs.

Availability

PN7642EV/C101K is available at Aetrix Electronics and suitable for physical access control terminals, eGovernment ID readers, and closed-loop payment kiosks requiring stable component supply, long-term lifecycle assurance, and certified NFC functionality.

Supply support for PN7642EV/C101K 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 markets.

The PN7642 product line delivers highly integrated NFC controllers with embedded MCU and hardware security-designed for secure, battery-efficient, and standards-compliant contactless applications in access, identity, and payment systems.

FAQ

What firmware version ships with PN7642EV/C101K?

PN7642EV/C101K ships pre-programmed with firmware version 2.00, which includes pinless-download mode enabled by default-allowing secure field updates via software command without asserting the DWL_REQ pin. This eliminates the need for external hardware reset sequencing during firmware upgrades and simplifies integration into sealed or compact form factors where pin access is restricted. The firmware also incorporates optimized DPC 2.0 and AWC algorithms validated against NFC Forum test specifications.

Does PN7642EV/C101K support ISO14443-B and FeliCa simultaneously?

Yes, PN7642EV/C101K natively supports ISO14443-B reader/writer mode up to 848 kbit/s and FeliCa at 212 kbit/s and 424 kbit/s (without crypto) in the same firmware build. Its dual-mode RF frontend and flexible host interface allow concurrent protocol configuration-enabling multi-standard readers for transit and government ID systems. Protocol switching occurs in <50 ms, and antenna matching remains stable across modes due to adaptive waveshape control.

How does the ULPCD feature reduce power consumption in PN7642EV/C101K?

PN7642EV/C101K achieves 22 μA average current in ultra low-power card detection (ULPCD) mode by powering down the entire NFC frontend-including RF oscillator, receiver chain, and digital logic-while maintaining only a minimal analog comparator circuit active. It wakes every 330 ms to perform a brief RF pulse and evaluates antenna load change. This enables >30 days of operation on a single 1,000 mAh battery in portable readers, with no firmware overhead or CPU involvement required during polling intervals.

Can PN7642EV/C101K operate without an external 27.12 MHz crystal?

Yes, PN7642EV/C101K can operate without an external 27.12 MHz crystal by using its internal PLL with an alternative clock source-24 MHz, 32 MHz, or 48 MHz-configured via EEPROM parameter CLK_INPUT_FREQ (0x0011). This flexibility reduces BOM cost and board space in systems already generating one of these frequencies, while maintaining full NFC Forum compliance. The PLL ensures precise 13.56 MHz RF carrier generation and synchronization with the integrated DC-DC clock for noise immunity.

What security certifications apply to PN7642EV/C101K?

PN7642EV/C101K is certified to SESIP Level 2 and NFC Forum Reader Device and Card Emulation standards. These certifications validate its secure boot implementation, hardware key store isolation, side-channel attack countermeasures (including for AES and ECC), and resistance to fault injection. The device also includes built-in overtemperature shutdown and overcurrent protection-ensuring robust operation in unattended deployments. Certification evidence is documented in NXP's official SESIP report and NFC Forum conformance test reports.