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EM4150A5WS27E Datasheet(PDF) 1 Page - EM Microelectronic - MARIN SA |
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EM4150A5WS27E Datasheet(HTML) 1 Page - EM Microelectronic - MARIN SA |
1 / 14 page R EM4150 EM4350 EM MICROELECTRONIC - MARIN SA Copyright © 2004, EM Microelectronic-Marin SA 1 www.emmicroelectronic.com 1 KBit READ / WRITE CONTACTLESS IDENTIFICATION DEVICE Description The EM4150/EM4350 (previously named P4150/P4350) is a CMOS integrated circuit intended for use in electronic Read/Write RF Transponders. The chip contains 1 KBit of EEPROM which can be configured by the user, allowing a write inhibited area, a read protected area, and a read area output continuously at power on. The memory can be secured by using the 32 bit password for all write and read protected operations. The password can be updated, but never read. The fixed code serial number and device identification are laser programmed making every chip unique. The EM4150 will transmit data to the transceiver by modulating the amplitude of the electromagnetic field, and receive data and commands in a similar way. Simple commands will enable write to EEPROM, to update the password, to read a specific memory area, and to reset the logic. The coil of the tuned circuit is the only external component required, all remaining functions are integrated in the chip. The only difference between EM4150 and EM4350 is that EM4150 comes with standard sized pads, whereas EM4350 comes with oversized (mega) pads, ideal for use with bumps on die (Fig. 27). 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 Applications □ Ticketing □ Automotive Immobilizer with rolling code □ High Security Hands Free Access Control □ Industrial automation with portable database □ Manufacturing automation □ Prepayment Devices Typical Operating Configuration EM4150 Coil 2 Coil 1 L Typical value of inductance at 125 KHz is 9.5 mH Fig. 1 Pin Assignment COIL 1 Coil terminal / Clock input COIL 2 Coil terminal EM4150 COIL2 COIL1 COIL2 COIL1 Fig. 2 |
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