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M35101 Contactless Memory Card IC 13.56 MHz, 2048-bit High Endurance EEPROM DATA BRIEFING s s s s s ISO 14443 - 2 Compliant 13.56 MHz Carrier Frequency 847 kHz Subcarrier Frequency 106 Kbit/second Data Transfer Data Modulation: - ASK from Reader to Card - BPSK from Card to Reader s s s s s Internal Tuning Capacitor 2048-bit EEPROM with Write Protect Feature BYTE and PAGE READ (up to 16 Bytes) BYTE and PAGE WRITE (up to 16 Bytes) Self-Timed Programming Cycle with AutoErase 1 Million Erase/Write Cycles (minimum) 40 Year Data Retention (minimum) 5 ms Programming Time (typical) C20 Antenna C10 Antenna s s s DESCRIPTION The M35101 is a contactless memory, powered by the received carrier radio wave. It is a 2048-bit EEPROM fabricated in the STMicroelectronics Single Polysilicon CMOS technology. The memory is organised as 16 pages of 16 x 8 bits. The M35101 conforms to the ISO 14443 (part 2) Type-B recommendation for the transfer of power and signals via radio transmission. The card reader circuitry amplitude modulates (10% modulation) the data on the carrier using amplitude shift keying (ASK). The card replies by load modulating the data on the carrier using bit phase shift keying (BPSK) of the subcarrier. The data transfer rate in each direction is 106 Kbit/second. Wafer Figure 1. Logic Diagram M35101 Power Supply Regulator 2 Kbit EEPROM ASK Demodulator BPSK Load Modulator AC1 Table 1. Signal Names AC1 AC0 Antenna Coil Antenna Coil AC0 AI02490 September 1998 Complete data available on Data-on-Disc CD-ROM or at www.st.com 1/2 M35101 Table 2. Ordering Information Scheme Example: M35101 KW4 Delivery Form KW4 180 m 15 m unsawn wafer KS4 180 m 15 m sawn wafer C10 C20 Antenna on Super 35 mm tape Antenna on Super 35 mm tape Devices are shipped from the factory with the memory content set at all `1's (FFh). For a list of available options (speed, package, etc...) or for further information on any aspect of this device, please contact the ST Sales Office nearest to you. 2/2 |
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