e5550

The e5550 is a contactless R/W-IDentification IC(IDIC) for general-purpose applications in the 125 kHz range. A single coil, connected to the chip, serves as the IC's power supply and bidirectional communication interface.Coil and chip together from a transponder.

Features of the e5550 are:(1)low-power, low-voltage CMOS IDIC; (2)contactless power supply; (3)contactless read/write data transimission; (4)radio frequency: 100 to 150 kHz; (5)264 bit EEPROM memory in 8 blocks of 33 bits; (6)224 bits in 7 blocks of 32 bits are free for user data; (7)block wirte protection; (8)extensive protection against contactless malprogramming of the EEPROM.

The absolute maximum ratings of the e5550 can be summarized as:(1): maximum DC current into COIL1/COIL2(Icoil) is 10 mA; (2): maximum AC current into COIL1/COIL2(Icoilpp) is 20 mA when f is 125 kHz; (3): power dissipation(diee)(Ptot) is 100 mW; (4): electro-static discharge maximum to MIL-standard 883 C methos 3015 (Vmax) is 1000 V; (5): operating ambient temperature range(Tamb) is -40 to +85; (6): storage temperature range(Tstg) is -40 to +125; (7): maximum assembly temperature for less than 5 min(Tsld) is +150.