RFID Chips Specifications

Help with RFID Chips specifications:

Type


	Technology
	Your choices are...
	Passive		An RFID tag without a battery. When radio waves from the reader reach the chip’s antenna, it creates a magnetic field. The tag draws power from the field and is able to send back information stored on the chip.
	Semi-passive		Similar to active tags, but the battery is used to run the microchip's circuitry but not to communicate with the reader. Some semi-passive tags sleep until they are woken up by a signal from the reader, which conserves battery life.
	Active		An RFID tag that comes with a battery that is used to power the microchip’s circuitry and transmit a signal to a reader. Active tags can be read from 100 feet or more away.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

	Interface
	Your choices are...
	RS232		Interface between data terminal equipment and data communications equipment employing serial binary data interchange.
	RS422		RS422 is a balanced serial interface for the transmission of digital data. It was designed for greater distances and higher Baud rates than RS232.
	RS485		RS485 is a balanced serial interface for the transmission of digital data. The advantage of a balanced signal is the greater immunity to noise. The difference between RS422 and RS485 is that RS485 can be transformed into a multi-point application.
	I2C		Inter-Integrated Circuit (I2C) is a bus is an inexpensive type of chip interconnection that is popular on circuit boards (pronounced "Eye Squared C").
	TTL		Transistor-transistor logic (TTL) is a common type of digital circuit in which the output is derived from two transistors. More commonly, however, TTL is used to designate any type of digital input or device.
	USB		USB products (Universal Serial Bus) is the original standard that supports data transfer rates of up to 12 Mbps.
	Wireless		The interface is wireless.
	Other		Other unlisted, specialized, or proprietary interfaces.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Performance


	Frequency:		RFID products use low, high, ultra-high and microwave frequencies. Each frequency has advantages and disadvantages that make them more suitable for some applications than for others.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Memory:		The amount of memory controls the amount of data that can be stored on a tag.
	Search Logic:		All matching products will have a value greater than or equal to the specified value.

	Read Rate:		The maximum rate at which data can be read from a tag expressed in bits or bytes per second.
	Search Logic:		All matching products will have a value greater than or equal to the specified value.

	Detection Range:		The distance from which a reader can communicate with a tag. Active tags have a longer read range than passive tags because they use a battery to transmit signals to the reader. With passive tags, the read range is influenced by frequency, reader output power, antenna design, and method of powering up the tag.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Operating Temperature		The range of temperatures through which the RFID product is designed to operate.
	Search Logic:		User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.

Features



	Your choices are...
	Portable		The RFID reader is not a fixed system.
	Read / Write		RFID tags that can store new information on its microchip, or RFID product that can write to a RFID tag.
	Anticollision / Multi-read		A general term used to cover methods of preventing radio waves from one device from interfering with radio waves from another. Anti-collision algorithms are also used to read more than one tag in the same reader's field.
	Noncontact		Reader can operate without physical contact with the tag being read.
	Encryption		A system that scrambles its data to prevent unauthorized duplication.
	Continuous Reporting		A mode of reader operation where a transponder ID is reported continuously while that transponder remains in the field of the reader.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Interface:

Frequency:

Memory:

Read Rate:

Detection Range:

Operating Temperature:

Features:

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