《下载中心新上传EM公司所有RFID芯片产品DATASHEET资料132016721103945》.pdf

EM MICROELECTRONIC - MARIN SA EM4450 EM4550 1 KBit Read/Write Contactless Identification Device Description Features The EM4450/4550 is a CMOS integrated circuit intended 1 KBit of EEPROM organized in 32 words of 32 bits for use in electronic Read/Write RF Transponders. The 32 bit Device Serial Number (Read Only Laser ROM) difference between EM4450 and EM4550 is that EM4550 32 bit Device Identification (Read Only Laser ROM) are bumped and has megapads for the two coils. The chip contains 1 KBit of EEPROM which can be configured by Power-On-Reset sequence the user, allowing a write inhibited area, a read protected Power Check for EEPROM write operation area, and a read area output continuously at power on. User defined Read Memory Area at Power On The memory can be secured by using the 32 bit password for all write and read protected operations. The password User defined Write Inhibited Memory Area can be updated, but never read. The fixed code serial User defined Read Protected Memory Area number and device identification are laser programmed Data Transmission performed by Amplitude Modulation making every chip unique. Two Data Rate Options 2 KBd (Opt64) or 4 KBd (Opt32) Bit Period = 64 or 32 periods of field frequency The EM4450/4550 will transmit data to the transceiver by m