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EM4450 EM4550 Datasheet

1 KBit Read/Write Contactless Identification Device
EM4450 / EM4550
Datasheet : EM4450 / EM4550.pdf
Features

• 1 KBit of EEPROM organized in 32 words of 32 bits
• 32 bit Device Serial Number (Read Only Laser ROM)
• 32 bit Device Identification (Read Only Laser ROM)
• Power-On-Reset sequence
• Power Check for EEPROM write operation
• User defined Read Memory Area at Power On
• User defined Write Inhibited Memory Area
• User defined Read Protected Memory Area
• Data Transmission performed by Amplitude Modulation
• Two Data Rate Options 2 KBd (Opt64) or 4 KBd (Opt32)
• Bit Period = 64 or 32 periods of field frequency
• 170 pF ± 2% on chip Resonant Capacitor
• -40 to +85°C Temperature range
• 100 to 150 kHz Field Frequency range
• On chip Rectifier and Voltage Limiter
• No external supply buffer capacitance needed due to low power consumption
• Available in chip form for mass production and PCB and CID package for samples.