TM iButton card(TM1990 /1991/1971/rw1990)
Product Description
Product introduction
DS1971
256-bit Electrically Erasable Programmable Read Only Memory (EEPROM) communicates with the economy of one signal plus ground
EEPROM organized as one 256-bit page
64-bit one-time programmable application register is automatically write-protected after programming
Reduces control, address, data, power, and programming signals to a single data pin
8-bit family code specifies DS1971 communications requirements to reader
Reads and writes over a wide voltage range of 2.8V to 6.0V from -40°C to +85°C
DS1991L-F5
Safe and reliable 1152 read/write, non-volatile memory
If 64 a password is not match, then security memory will not be decoded
Memory is divided into three partitions, each partition contains 384 bits
Each partition has 64 a password and identification number
512 temporary device to ensure the integrity of the data transfer
Working temperature range:-40 ° C 70 ° C to +
Data can be keep 10 years
TM/DS1990 A-F5
Consists of a factory-lasered, 64-bit ROM that includes a unique 48-bit serial number, an 8-bit CRC, and an 8-bit Family Code (01h). Data is transferred serially via the 1-Wire® protocol that requires only a single data lead and a ground return. Power for reading and writing the device is derived from the data line itself with no need for an external power source
Operating temperature range: - 40 ° C to + 70 ° C control
TM1990D-F5
Memory 64 bit, read only, each chip unique serial number, do not copy, and the encapsulation add have outer ring, like a ring, a special place for the convenient use
Operating temperature range: - 40 ° C to + 70 ° C control
RW1990
Write on card, can write 64 bit, no additional password
Operating temperature range: - 40 ° C to + 70 ° C control
Type: 1990 a - F5 ring card
Memory 64 bit, read only, each chip unique serial number, do not copy, encapsulation: TM1990A - F5 + handle + beads
Operating temperature range: - 40 ° C to + 70 ° C control
Product Image
Img 1
Send Inquiry to this Member
Related Products of this Company
This member assumes full responsibility for the content of this listing. DIYTrade accepts no responsibility whatsoever in respect of such content.
To report fraudulent or illegal content, please
click here.
China Suppliers Quick Searching:
,