sle4442 chip

SLE4442 is the most widespread chip that utilized in protection area. The striking rewards are secure perform and the most cost-efficient cost!

SLE 4442 supplies a protection code logic which controls the write/erase accessibility to the memory. For this function the SLE 4442 is made up of a 4-byte protection memory with an Error Counter EC (bit to bit 2) and 3 bytes reference data. These three bytes as a complete are referred to as Programmable Security Code (PSC). Soon after electrical power on the whole memory, except for the reference data, can only be read. Only following an effective comparison of verification information with the internal reference information the memory has the identical access functionality of the SLE 4432 till the energy is switched off. Following three successive unsuccessful comparisons the Error Counter blocks any subsequent attempt and consequently any likelihood to publish and erase.

Technical Attributes:
256 * 8-bit EEPROM organization
Byte-smart addressing
Irreversible byte-wise create safety of lowest
32 addresses (Byte . 31) 32*one-bit organization of protection memory
Two-wire website link protocol
End of processing indicated at data output
Answer-to-Reset acc. to ISO common 7816-3
Programming time two.5 ms per byte for the two erasing and writing
Minimum of 104 create/erase cycles
Data retention for minimum of ten many years
Contact configuration and serial interface in accordance with ISO normal 7816 (synchronous transmission)

NFC Tag Types

There are Four NFC Tag Types

nfc tag types
nfc tag types

1:NFC tag Type 1 is based on ISO/IEC 14443A. This tag type is read and re-write capable. The memory of the tags can be write protected. Memory size can be between 96 bytes and 2 Kbytes. Communication Speed with the tag is 106 kbit/sec. Example: Innovision Topaz

2: NFC tag Type 2 is based on ISO/IEC 14443A. This tag type is read and re-write capable. The memory of the tags can be write protected. Memory size can be between 48 bytes and 2 Kbytes. Communication Speed with the tag is 106 kbit/sec. Example: NXP Mifare Ultralight, NXP Mifare Ultralight
3:NFC tag Type 3 is based on the Japanese Industrial Standard (JIS) X 6319-4. This tag type is pre-configured at manufacture to be either read and re-writable, or read-only. Memory size can be up to 1 Mbyte. Communication Speed with the tag is 212 kbit/sec. Example: Sony Felica

4:NFC tag Type 4 is fully compatible with the ISO/IEC 14443 (A \& B) standard series. This tag type is pre-configured at manufacture to be either read and re-writable, or read-only. Memory size can be up to 32 KBytes; For the communication with tags APDUs according to ISO 7816-4 can be used. Communication speed with the tag is 106 kbit/sec. Example: NXP DESfire, NXP SmartMX with JCOP.)

From the definitions of the different NFC tag types, it can be seen that nfc tags type 1 and nfc tags type 2 tags are very different to nfc tags type 3 and 4 , having different memory capacity and makeup. Accordingly it is expected that there is likely to be very little overlap in their applications.

NFC tags Type 1 and type 2 tags are dual state and may be either read/write or read-only. NFC Type 3 and Type 4 tags are read-only, data being entered at manufacture or using a special tag writer.

RFID Tag Application

In the current development blueprint, the difference between RFID with other wireless technology, RFID tags are mainly used to identify and authenticate.  but all wireless technologies need to consider security issues, RFID is no exception. RFID is mainly used in areas such as logistics and consumer, privacy requirements in these areas are not too high, so that trade considerations and not enough emphasis on RFID Security. In typical logistic application with hundreds of RFID reading devices, cargo tag information was stolen in what will be the loss? In most cases, even if it was to worry about, but not in this one seriously evaluated. However, noteworthy is that concerns about RFID Security has slowed the pace of development of RFID. Both have already applied RFID system users are those users who are evaluating RFID system, RFID potential security problems are causing the problem.

The security issue is how to prevent the most basic RFID tag information to intercept and decipher, because these labels is the core of the application and the information in the media in obtaining the label information an attacker can all kinds of unauthorized use of RFID systems. Due to the limited RFID applications span, hacker groups are widely involved in RFID field. At this stage, most of the problems are demonstrated by a number of research organizations. DST is harnessing the power of reading device in the role of radio frequency identification devices, in conjunction with car keys in capsule form, only when the component is correctly identify the car will not start until after the car alarm system. This study shows that, in the case of contactless RFID devices is possible to steal information. Although DST at dozens of cm range can only be read, but in the elevator, lounge environments made close contact with car owners there is a great possibility. RFID tags are integrated circuit chip, which means a method for attacking smart card product in the RFID tag is also equally possible. Cracking process of RFID tags is not complicated. Uses a 40-bit key products are usually completed in less than an hour to break out for stronger encryption, you can brute force via dedicated hardware devices, but this usually need to have label objects.

Through special protective layer of the solution on the label can also be removed, allowing external devices can connect with those labels. In this case, an attacker can not only get the label data, but also analyzing the structural design of labels to identify problems completing certain forms of attack can take advantage of. It would appear that even if RFID tags are “small”, however, may still exist as a complete system security vulnerability once poor design will have a considerable impact. To set the encryption mechanism is strong enough, strong to the attacker cannot crack, but RFID tags still faces the risk of being copied. Especially those protected RFID tags using the smart card reader and RFID tags attached devices will be able to easily complete the label copy work.

Despite the tampering with information in the RFID tag is also very difficult, or at least are more limited, however, in most cases, copies the label information should be able to successfully cheat RFID system. For example: attacker holding a copy of RFID credentials through the security system, access to RFID as a means of authentication of database systems, and so on. This defines a certain relationship with the RFID protocols: RFID technology standards, writes for RFID labels and management has a more detailed specification, but the limit is relatively easy to read, this internal copy is a RFID threats.

nfc patch kit

The NFC Patch Kit is a passive device that allows you to extend the reach of your NFC reader. The kit consists of a patch and an antenna that once affixed to your reader’s scan surface, provides a stethoscope-like extension where tags can be read (or written). Due to it’s modular design, you can mix and match patches and antennas to get best read (or write) results. The NFC Patch Kit is effective in solving the backside-scan limitation of consumer devices with NFC, allowing devices to be used as self-service kiosks and other digital signage solutions.

The NFC Patch Kit comes with one NFC Antenna (get more here) and can extend your NFC reach by as much as 3ft (36″). When stuck to the rear of these devices, the NFC Patch and Antenna extends the read (or write) range of your device without compromising functionality. We’ve specifically designed and tuned the product for the Nexus 7 Gen2 (2013) but it has been proven to work with other NFC devices as well. Check the Forums for other use cases.

Installing the NFC Patch on your device is straight forward. Just use the double sided adhesive to stick the NFC Patch so that it aligns with and sits over the surface where you normally scan NFC tags on your device. That’s it! Now connect the NFC Antenna using the included connector cable to instantly read (or write) tags anywhere the NFC Antenna can reach.

RFID Laundry Tag

RFID Laundry Tags are ideal for tracking linens, uniforms, and other garments.

Laundry Tag are designed for applications requiring a rugged RFID tag which can operate in harsh environments.

Laundry Tag meet all requirements for temperature, pressure and chemical resistance in applications dealing with contactless garment tracking, such as that used by textile rental services or dry cleaners.

Laundry Tag is designed to be an ultra-rugged UHF RFID Tag for Commercial and Industrial Textile Applications. It increased reading distance and new tag design enables reading of hundreds of flat linens quickly and accurately in harsh commercial laundry environments.

Material: depending on diameter
Diameters: 14 mm, 15.5 mm and 22 mm
Thickness: depending on diameter
Operating temperature: from −25 °C to 90 °C

Available chip technologies:

Manufacturer 125 kHz 13.56 MHz
EM Microelectronic EM4102, EM4200
NXP Hitag®1, 2, S MIFARE Ultralight®, MIFARE® Classic, MIFARE® DESFire®, MIFARE Plus®
I-Code®: SLI
Infineon MIFARE®: SLE66R35
Atmel ATA5577
Legic® Prime: MIM256, MIM1024


RFID PCB tag which is Low cost PCB tag and low development cost. The tag can be apply on high temperature environment.

UHF PCB On metal Passive RFID tags are designed and produced by special technology and process, for indoor and outdoor usage in harsh industrial environment like metal, acidic, alkaline, wet, etc. It is easy to apply it on metal surface and has excellent performance of being read and written in long distance. We imported original chips of famous brands such as Impinj, Alien, NXP, etc. which is with 860-960Mhz and compliant with EPC Class 1 Gen 2, ISO18000-6C/6B standard.

rfid pcb tag

Specification Details
-Flat and clear surface, without protrude caused by embedding antenna like other brands.
-Waterproof, anti-shock, resist to corrosion
-Various kinds of style for choosing
-Can be customized designed
-Various ways for fixing (glue, 3M adhesive, screw)

Product Name UHF PCB tag
Material FR4
Size 100X30mm, 90X11mm, 80X20mm, 36X13mm, 22X8mm, 18X9mm, etc.
Thickness 3.0mm or 3.4mm(with coating)
Reading distance 0.2meter to 4.5 meter depending on different size of tag and different antenna of reader
Working Frequency 840-960MHz, compliant to:

-Global: 860-960Mhz

-USA FCC: 902-928Mhz

-Europe ETSI: 868Mhz

-Japan: 950Mhz

Protocal ISO18000-6C/6B、EPC Class1 Gen2
Protection IP63
Data retention 10 years, 100K times cycling
Operating temperature -25℃-200℃
Temperature testing Change testing temperature between -40℃-85℃, last for 30 days.
Solvent test Pass 95% alcohol testing, pass 92# petrol scrubbing test
Drop test Drop 200 times from 1 meter height
QC control 100% EPC programming test; 100% check by EU importation standard for performance uniformity
Craft available Silk-screening printing, laser numbering, EPC preprogramming, extra coating for outdoor usage, customized logo printing after coating, etc.
Chip available


Chip model

Memory R/RW Data Retention Protocol
860-960Mhz Alien H3 96bits(EPC)


Read/write 10 years ISO18000-6C
Ucode Gen 2 XL/XM 96bits(EPC)


Read/write 10 years ISO18000-6C
Impinj Monza 4D 128bits(EPC) 32bits(User) Read/write 10 years ISO18000-6C
Impinj Monza 4E 496bits(EPC) 128bits(User) Read/write 10 years ISO18000-6C
Impinj Monza 4QT 128bits(EPC)


Read/write 10 years ISO18000-6C
Other chips are available when required.
Package Based on detail specification and factory standard



● Identification Transponder in Plastic Brick Package
● Compatible ATA5557, ATA5567.
● Includes Ferrite Coil and Capacitor for Tuned Circuit Antenna
● Basic Component: Atmel ® ATA5577M1330C IDIC ®
● Contactless Power Supply
● Contactless Downlink Data Transmission
● Radio Frequency fRF = 125kHz
● 363-bit EEPROM Memory in Total: 11 Blocks × (32 Bits + 1 Lock-Bit)
● 7 × 32 Bits EEPROM User Memory Including 32-bit Password Memory
● 2 × 32 Bits Unique ID
● 1 × 32-bit Option Register in EEPROM to Set Up the Analog Front End:
● Clock Detection Level
● Gap Detection Level
● Improved Downlink Timing
● Clamp Voltage
● Modulation Voltage
● Soft Modulation Switching
● Write Damping like the Atmel T5557/ATA5567 or with Resistor
● Downlink Protocol
● 1 x 32-bit Configuration Register in EEPROM to Set Up:
● Data Rate:
● RF/2 to RF/128, Binary Selectable or
● Fixed Basic Mode Rates
● Modulation/Coding:
● ASK, FSK, PSK, Manchester, Bi-phase, NRZ
● Other Options:
● Password Mode
● Max Block Feature
● Direct Access Mode
● Sequence Terminator(s)
● Block-wise Write Protection (Lock Bit)
● Answer-On-Request (AOR) Mode
● Inverse Data Output
● Disable Test Mode Access
● Fast Downlink (~6Kbits/s vs. ~3Kbits/s)
● OTP Functionality
● Init Delay (~67ms)

hitag 1

HITAG 1 based transponders are highly integrated and do not need any additional components beside the external coil.
Data between Key (RWD) and transponder is transmitted bidirectionally, in Half Duplex Mode. The HITAG 1 transponder IC offers also an encrypted data transmission.
The AntiCollision (AC) Mode, which is used mainly in long range operation, allows to handle several transponders that are at the same time in the communication field of the antenna, thus achieving highest operating reliability and permitting to handle several transponders quickly and simultaneously.
The HITAG 1 transponder IC provides two protocol modes, Standard and Advanced Mode. The Advanced Protocol Mode operates compared to the Standard Protocol Mode with an increased number of Startbits and a 8-bit Cyclic Redundancy Check (CRC) sent by the transponder IC at read operations.
HITAG 1 transponder IC offer a memory of 2 kbit.

Features and benefits:
Identification transponder for use in contactless applications
Operating frequency 125 kHz
Data transmission and energy supply via RF link, no internal battery
Non-volatile memory of 2 kbit
Organized in 64 pages, 4 bytes each
10 years non-volatile data retention
100000 erase/write cycles
Selective read/write protection of memory content
Mutual authentication function

Asset tracking
Gas cylinder ID
Industrial automation

125khz RFID Card

125khz RFID Card

Contactless card, also called proximity card, with the chip of low frequency 125KHz, high frequency 13.56MHz, or ultra-high frequency 860~960MHz, achieves contactless transmission of data with electromagnetic waves transmitting data between the RFID chips and reading devices.
125khz rfid card chip details:

Card ICs Frequency Memory Application
EM4100/4102 125KHz 64 bit R/O access control, identification…
EM4450/4550 125KHz 1024 bit R/W access control, identification…
ATA5557/5567 125KHz 330 bit R/W e-lock, identification…
membership, logistics,
Hitag 1/2 125KHz 2K/256 bit R/W distribution…
Hitag S256/2048 125KHz 256/2K bit R/W livestock, e-lock, access control…
Transportation, parking,
Mifare 1k S50 13.56MHz 1K byte R/W membership…
Mifare 4k S70 13.56MHz 4K byte R/W Transportation, parking,
Mifare Ultralight 13.56MHz 512 bit R/W metro, transportation ticket…
Mifare DESFire 4K/8K byte
4k/8k 13.56MHz R/W transportation, membership…
I CODE SLI 13.56MHz 1024 bit R/W logistics, distribution…
Legic MIM 256 13.56MHz 256 byte R/W access control, identification…
TI2048 13.56MHz 2048 bit R/W transportation, ticketing, logistics…
2K/32K bit
Picopass 2k/32k 13.56MHz R/W identification management…
UHF/2.45GH logistics, distribution,
UCODE HSL z 2K bit R/W transportation…
UCODE EPC G2 860~960MH 512 bit R/W logistics, distribution,

Mifare 1k S50

NXP Semiconductors has developed the MIFARE Classic MF1S50 to be used in a contactless smart card according to ISO/IEC 14443 Type A.
The MIFARE Classic 1K MF1S50 IC is used in applications like public transport ticketing and can also be used for various other applications.
An intelligent anticollision function allows to operate more than one card in the field simultaneously. The anticollision algorithm selects each card individually and ensures that the execution of a transaction with a selected card is performed correctly without interference from another card in the field.
Simple integration and user convenience
The MF1S50 is designed for simple integration and user convenience which allows complete ticketing transactions to be handled in less than 100 ms.
• Manufacturer programmed 7-byte UID or 4-byte NUID identifier for each device
• Random ID support
• Mutual three pass authentication (ISO/IEC DIS 9798-2)
• Individual set of two keys per sector to support multi-application with key hierarchy
Features and benefits
> Contactless transmission of data and supply energy
> Operating distance up to 100 mm depending on antenna geometry and reader configuration
> Operating frequency of 13.56 MHz > Data transfer of 106 kbit/s
> Data integrity of 16-bit CRC, parity, bit coding, bit counting
> Anticollision
> Typical ticketing transaction time of < 100 ms (including backup management)
> 1 kB, organized in 16 sectors of 4 blocks (one block consists of 16 byte)
> User definable access conditions for each memory block
> Data retention time of 10 years
> Write endurance 100000 cycles
> Public transportation
> Access management
> Electronic toll collection
> Car parking
> School and campus cards
> Employee cards
> Internet cafés
> Loyalty