XM-110 LEGIC 13.56 MHz Reader/Writer Module, TTL UART

13.56 MHz module built around the LEGIC SM-4200 chip that reads and writes LEGIC cards and returns MIFARE, iCLASS, FeliCa and ICODE UIDs over TTL serial.

  • Built around the LEGIC SM-4200 reader chip (details on request)
  • Reads and writes LEGIC credentials at 13.56 MHz
  • Returns UIDs of FeliCa, MIFARE and ICODE cards and the iCLASS card serial number (CSN)
  • ISO/IEC 14443A, ISO/IEC 14443B and ISO/IEC 15693 protocols
  • TTL serial, 9600–115200 bps (default 115200); address and baud rate set by command
Frequency
13.56 MHz
Reader chip
LEGIC SM-4200
Credentials
LEGIC (read/write); FeliCa, MIFARE, ICODE, iCLASS (UID/CSN)
Interface
TTL serial, 9600–115200 bps
Power
5 V DC ±5%, < 200 mA
Dimensions
38 × 18 × 10.5 mm
Reply within 24 hours Tested before dispatch Worldwide shipping

LEGIC 13.56 MHz Reader/Writer Module, TTL UART: overview

The XM-110 is a 13.56 MHz reader/writer module for OEMs adding LEGIC card handling to their own hardware: smart locks, handheld and tablet terminals, access readers, and parcel or logistics devices. It is built around the LEGIC SM-4200 reader chip (details on request) and performs both read and write operations on LEGIC credentials. For other card types it returns the unique identifier — the UID of FeliCa, MIFARE and ICODE cards and the card serial number (CSN) of iCLASS cards — so a mixed badge estate can still be identified by one module.

Protocol support covers ISO/IEC 14443A, ISO/IEC 14443B and ISO/IEC 15693. The host can set and query the module address, baud rate and serial number by command, which is useful when provisioning devices or tracing them in the field. Read distance is more than 20 mm, depending on the credential and the installation.

Integration notes

The module runs from 5 V DC (±5%) and draws less than 200 mA. It talks TTL serial at 9600–115200 bps, set by command and defaulting to 115200 bps. Connections are spread over three headers: J2 carries RESET, receive (CRX), transmit (CTX), GND and VCC; J1 provides an LED pin; and J3 offers GND plus an additional TX line. The board measures 38 × 18 × 10.5 mm. It operates from –10 to +70 °C at 15–90% humidity and can be stored from –20 to +80 °C. No certifications are listed, so compliance is assessed on the finished product.

Third-party credential and platform names on this page are trademarks of their respective owners and are used only to describe compatibility.

More features

  • 5 V DC ±5%, < 200 mA; read distance > 20 mm
  • 38 × 18 × 10.5 mm; operates from –10 to +70 °C

XM-110 specifications

RF & credentials

Operating frequency13.56 MHz
Reader chipLEGIC SM-4200
LEGIC credentialsRead and write
Other credentialsUID read: FeliCa, MIFARE, ICODE; card serial number (CSN) read: iCLASS
ProtocolsISO/IEC 14443A, ISO/IEC 14443B, ISO/IEC 15693
Read distance> 20 mm (depends on credential and environment)

Interfaces

Host interfaceTTL serial (UART)
Baud rate9600–115200 bps, set by command (default 115200 bps)
Configurable parametersModule address, baud rate, serial number (set and read by command)
ConnectorsJ1: 3 pins (LED); J2: 5 pins (power, reset, UART); J3: 2 pins (GND, TX)

Electrical

Supply voltage5 V DC ±5%
Operating current< 200 mA

Mechanical & environment

Dimensions38 × 18 × 10.5 mm (stated tolerance ±3 mm)
Operating temperature–10 to +70 °C (+14 to +158 °F)
Storage temperature–20 to +80 °C (–4 to +176 °F)
Operating humidity15–90% RH

Compliance

CertificationsNone listed for the module

Connector pinout

PinSignalFunction
J1-1NCNot connected
J1-2NCNot connected
J1-3LEDLED signal
J2-1RESETModule reset
J2-2CRXSerial receive (module input)
J2-3CTXSerial transmit (module output)
J2-4GNDGround
J2-5VCCPower input, 5 V DC
J3-1GNDGround
J3-2TXAdditional transmit data line

Three headers: J1 (LED), J2 (power, reset and serial), J3 (additional TX). Confirm the J3 TX function with the command documentation.

Specifications can change between production batches. Confirm the current revision with us before placing volume orders.

Ordering options

Quote the SKU that matches your frequency, interface and mounting. Not sure? Send us your controller model and we will pick the variant for you.

SKUConfigurationActions
XM-110-LG-T LEGIC SM-4200-based 13.56 MHz reader/writer module; TTL serial; 5 V DC

Where the XM-110 is used

  • Electronic door locks for sites that issue LEGIC credentials
  • Handheld or tablet terminals that need to read and update LEGIC cards
  • Access readers that must also identify MIFARE, FeliCa or iCLASS badges by UID
  • Delivery and logistics devices checking staff credentials at hand-over points

XM-110 FAQ

Can it write to LEGIC cards or only read them?

It reads and writes LEGIC credentials. For FeliCa, MIFARE, ICODE and iCLASS cards it returns the UID or card serial number only.

Which reader chip does it use?

The module is built around the LEGIC SM-4200 reader chip. Further chip and firmware details are available on request.

What serial settings does it use?

TTL serial at 9600–115200 bps, set by command; the default is 115200 bps. The module address and serial number can also be set and read.

What read distance should I expect?

More than 20 mm. Actual distance depends on the credential type and the installation environment.

Does the module carry CE or FCC approval?

No certifications are listed for the module, so compliance is assessed on your finished product.

Before you buy

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