DS1990A-F5, TM1990B-F5, 64 Bit Serial Number Dallas iButton Smart TM Card tm memory card

DS1990A-F5, TM1990B-F5, 64 Bit Serial Number Dallas iButton Smart TM Card tm memory card

TM Card is similar to a button battery in shape and can be inlaid into a card, key button and other objects.

You can replace the data line, address line, control line and power line with a single line so that TM card achieves single line communication through a multi -function device.

According to whether the Memory in TM card is encrypted or not, TM card can be divided into encrypted TM card and non-encrypted TM card. Most of TM cards are non-encrypted.

TM card’s encrypted method is different from Contactless IC Encrypted cards: The former has 64-bit password without the function of error calculation, while the latter has shorter password and the function of error calculation.

If you forget your password by chance, you can reuse your TM card after re-initializing it, but the information in your card will be automatically rewritten.

Details of TM Card

TM Key		Size	Handle L40mm*W15mm
Ibutton		Size	Dia17mm*6mm
Wristband		Size	Band dia 65mm,stretchable
Material		Stainless steel + ABS/PPC
Color		Full color,customized welcome
Date Save		Over 10 years
Capacity		64 bit serial number
Application		Access control/Guard Tour System/Security Patrol/Sauna door locks/electronic door locks
RFID IC Support:
Chip name	1990A-F5
Features	Upgrade of DS1990 allows multiple Serial
	Number IButtons to reside on a common bus
	Low-cost electronic key for access control
	Operating Range: 2.8V to 6.0V, -40℃to +85℃
	Can be read in less than 5ms