ACS ACM1252U-Z2 USB 2.0 NFC interface module, ISO14443/ISO18092, PC/SC CCID, 20×52×6 mm

The ACS ACM1252U-Z2 USB 2.0 NFC interface module is a compact contactless reader designed for integration into embedded and desktop systems. Based on 13.56 MHz technology, it supports ISO 14443-4 (Type A and B), ISO 18092, MIFARE Classic and FeliCa tags, enabling contactless card and tag reading and writing. The module offers USB Full Speed connectivity with PC/SC CCID compatibility, firmware upgradability and a small footprint of 20×52×6 mm. A detachable micro-USB cable allows flexible placement relative to the USB host.

Advantages

The ACM1252U-Z2 provides a compact hardware footprint for space-constrained applications and straightforward USB 2.0 Full Speed connectivity for rapid integration. Native PC/SC CCID support simplifies driver and software compatibility across platforms that accept CCID readers. Support for multiple contactless standards — ISO 14443 A/B, MIFARE, FeliCa and ISO 18092 — together with anti-collision handling and data rates up to 424 kbps delivers reliable, multi-protocol performance for a variety of NFC use cases. Firmware upgradability ensures future protocol or security updates can be applied without replacing hardware.

Suitable for

• Embedded systems and compact devices requiring contactless card/tag reading
• Desktop applications that need a small footprint NFC reader with USB connectivity
• Access control, ticketing and payment prototype integration using ISO 14443 or MIFARE
• Android or Windows environments where PC/SC CCID compatibility is required

Key specifications

• Frequency: 13.56 MHz contactless operation
• Supported standards: ISO 14443-4 Type A & Type B, ISO 18092, MIFARE Classic, FeliCa
• Data transfer rate: up to 424 kbps (depending on tag and environment)
• Interface: USB 2.0 Full Speed (detachable micro-USB cable supported)
• Host compatibility: PC/SC CCID
• Physical dimensions: 20 × 52 × 6 mm
• Typical read range: up to 30 mm (dependent on tag type and orientation)
• Features: built-in antenna, anti-collision support, firmware upgradeable
• Certifications: CE, FCC

How to use

Connect the ACM1252U-Z2 to a host device using the detachable micro-USB cable and allow the host to recognize the reader via its CCID interface. On Windows or Android systems that support PC/SC, use existing PC/SC-aware applications or SDKs to communicate with contactless cards and tags. Present a compatible card or tag to the module’s antenna area and use standard APDU or NFC commands for read/write operations. If required, update the device firmware through the provided upgrade mechanism to ensure compatibility and security.

Usage recommendations

For reliable communication, position cards and tags close to the module antenna and avoid metallic obstructions between the tag and reader. Test read range and data rate with the specific tag types used in your application and perform firmware updates in a controlled environment to prevent interruption during the process.