NXP Semiconductors PN7221EV/C100K

Overview

PN7221EV/C100K from NXP Semiconductors is an NCI 2.2–compliant NFC controller supporting EMVCo 3.1 digital/analog and NFC Forum 13 compliance, delivering 2.0 W RF output power and integrated dual polling loops (NFC Forum + EMVCo) with hardware-mode switching via MODE pin. It operates across -40 °C to +85 °C, supports ISO/IEC 14443-A/B, FeliCa, ISO/IEC 15693, MIFARE Classic crypto acceleration, and hosts one I2C interface (3.4 Mbit/s) in single-host configuration.

For engineers reviewing the PN7221EV/C100K datasheet, PN7221EV/C100K pinout, PN7221EV/C100K application, or PN7221EV/C100K equivalent, key selection considerations include ECP authorization status, VFBGA64 package constraints, firmware version 1.00 initialization, DC-DC usage for transmitter supply optimization, and hardware-triggered polling loop isolation for PCI-compliant payment subsystems.

Technical Context

The PN7221EV/C100K implements two independent, hardware-switched RF polling loops-NFC Forum and EMVCo 3.1-with separate EEPROM-stored RF configuration sets enabling optimized analog performance per mode. Its NCI 2.2 logical interface runs over physical I2C (3.4 Mbit/s), and MODE pin assertion triggers full NCI stack reset, buffer clearance, and RF reset to ensure transaction integrity.

It integrates dynamic power control (DPC 2.0), adaptive waveshape control (AWC), and automatic EMD error handling-all autonomous of host intervention. The device supports ISO7816 contact interface expansion via up to three TDA8035 ICs and includes dedicated debug signals (AUX1/AUX2) and RF test capabilities compliant with PCI requirements for POS terminals.

Key Specifications

Pinout & Package

PN7221EV/C100K uses a 64-ball Very Thin Fine-Pitch Ball Grid Array (VFBGA64) package measuring 4.5 mm × 4.5 mm × 0.9 mm, JEDEC-compliant with MSL3 rating and tray packaging (5 × 490 pcs). Pin mapping follows SOT1307-2 mechanical layout with dedicated RF, power, host interface, and debug signal balls.

Key Features

Applications

Equivalent & Alternatives

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

Compared with PN7221EV/C100K, PN7221EV/C101K adds dual-host flexibility and ECP readiness but requires firmware update and hardware revalidation; PN7220EV/C100K removes ECP and dual-host capability entirely, reducing system complexity and certification scope for basic readers.

Availability

PN7221EV/C100K is available at Aetrix Electronics and suitable for payment terminals, public transport validators, e-vehicle charging stations, and unattended vending machines requiring stable component supply, long-term lifecycle assurance, and MSL3-compliant packaging.

Supply support for PN7221EV/C100K 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 core expertise in NFC, RFID, and secure element technologies.

The PN7221EV/C100K belongs to NXP's PN7220 family of high-power NFC controllers, engineered specifically for EMVCo-certified payment infrastructure where RF robustness, dual-standard compliance, and hardware-enforced security isolation are mandatory.

FAQ

What is the primary function of the PN7221EV/C100K in a payment terminal design?

The PN7221EV/C100K serves as the certified NFC controller managing both EMVCo 3.1 and NFC Forum polling loops, generating up to 2.0 W RF output, executing hardware-accelerated MIFARE crypto, and interfacing with a single host MCU via I2C. In the PN7221EV/C100K, this functionality is delivered with firmware version 1.00 and preconfigured for single-host use-making it ideal for cost-optimized, certified terminals where Apple ECP is not required.

Does the PN7221EV/C100K support SPI interface for host communication?

No, the PN7221EV/C100K is configured for single-host operation using only the I2C interface (3.4 Mbit/s) as specified in its ordering code C100K and firmware v1.00. SPI support is reserved for dual-host variants like PN7221EV/C101K. Attempting SPI connection on PN7221EV/C100K will not yield functional communication, as the SPI pins remain unenabled in this firmware configuration.

How does the MODE pin affect operation of the PN7221EV/C100K?

The MODE pin on the PN7221EV/C100K directly selects the active RF polling loop: logic HIGH configures EMVCo 3.1 mode, while logic LOW selects NFC Forum mode. Assertion of this pin triggers immediate NCI stack reset, internal buffer clearance, and RF subsystem reset-ensuring deterministic state transition critical for PCI compliance. This hardware-level control eliminates software timing uncertainty during mode switching in the PN7221EV/C100K.

Is Enhanced Contactless Polling (ECP) enabled by default on the PN7221EV/C100K?

No, ECP is not enabled by default on the PN7221EV/C100K. Although the PN7221 silicon supports ECP, activation requires formal authorization from Apple and subsequent firmware update. The PN7221EV/C100K ships with firmware v1.00, which does not include ECP functionality. Customers must engage Apple's authorization process and obtain updated firmware separately to unlock ECP on this part.

What package type and mounting requirements apply to the PN7221EV/C100K?

The PN7221EV/C100K uses a VFBGA64 package (4.5 mm × 4.5 mm × 0.9 mm, SOT1307-2) with 64 solder balls. It requires MSL3 handling, reflow per JEDEC J-STD-020, and careful PCB layout-including short traces to decoupling capacitors, dedicated ground planes for VSS_PA/VSS_PLL, and symmetric RF routing for TX1/TX2 and RXP/RXN. Thermal vias under the exposed die pad are recommended for thermal management at 2.0 W output.