SMC642CYS 642CZS
SMC642CYS/642CZS Note: We accept customized service of this product. The working frequency, interface, communication protocol and operation mode can be changed according to customer requirements.

Product Number:642CYS/ 642CZS

The SMC642CYS/CZS series is a 13.56Mhz dual-antenna ISO14443A & ISO15693 non-contact inductive reader module.The module uses SMC642 chip design, SMC642 is RF Frontend & Control Interface 2-in-1 decoding control chip, is designed to read SMC4111 UID and read and write ISO14443A & ISO15693 standard communication protocol reader module.

Users do not need to know any complicated control commands, such as RC522/RC500/RC400/RC632Z, and do not need to understand the complex key and access control of the Mifare card.Understand the instruction instructions for using this product, you only need to use the simplest 3 commands (read data, write data and modify key).You can fully understand the read and write operations of the Mifare card in the shortest possible time.Easy to understand and easy to use, the anti-collision processing module has been automatically solved for you, so that beginners can quickly complete development design, shorten development time, reduce development costs, and reduce overall product cost.This series of products provides UART / I2C, UART / SPI interface can directly communicate with the MCU motherboard.

Operating mode & Anticollision function & Antenna setting (Refer to the table below):

Mode Command mode Automatic card reading mode
Mode setting PB0 and GND open PB0 and GND short
Anticollision function (customized)

There is anticollision but the cards must have the same attribute.(14443A and 15693 cannot be shared)

The anti-collision effect must be based on the customized specifications, the size of the reader and tag antenna.

NO anticollision

If you need anticollision function, you must customize the design.

R/W instructions Can read UID, R/W data Read UID only
Antenna setting ANT1 open (Default), ANT2 open, ANT1 & ANT2 alternately open, ANT1 & ANT2 off, can only be set in command mode
*A1:ANT1 A2:ANT2

Product number :

P/N ISO Antenna Output interface Automatic continuous reading output
SMC642CYS-1 14443A dual UART/I2C UART to W34
15693
SMC642CYS-2 14443A dual UART/I2C UART to RS232
15693
SMC642CZS-1 14443A dual UART/SPI UART to W34
15693
SMC642CZS-2 14443A dual UART/SPI UART to RS232
15693

Module Specification :

Product Number SMC642CYS / SMC642CZS series
Operating Voltage 3.3V
Dynamic Operating Current 20mA
Static operating current 5 mA
Communication serial transmission rate

UART = USB = RS232 --- 19200bps

I2C and SPI --- 200kbps

W34 --- Lo (50us),Hi(1ms)

Module Size 34.5mm * 54mm
Working Frequency 13.56MHz
Supported Card ISO14443A & ISO15693
  • a. 4 Byte --- Mifare S50 (R/W) & S70 (R/W)
  • b. 5 Byte --- Smc4111 (uid)。
  • c. 7 Byte --- DesFire (uid)、Plus (uid)、Ultra-Light (R/W) 、Mifare S50 (R/W) & S70 (R/W)
  • d. 8 Byte --- 15693 (R/W) NXP(i code 2、i code x) TI RF430
Communication interface UART、I2C / UART、SPI
Operating temperature -20℃ ~ 80℃
Card reading distance 3mm ~ 80mm
Card reading time < 0.2 seconds
Output control There is an auxiliary output that can control external devices such as LEDs or buzzers
Relative humidity Work:10%-90%RH, Storage:20%-90%RH
WatchDog protection Built-in hardware watchdog to prevent crashes