M35101 datasheet(1/2 Pages) STMICROELECTRONICS

Part #	M35101

Description	Contactless Memory Chip 13.56 MHz, 2048-bit High Endurance EEPROM

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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DATA BRIEFING

October 1999

Complete data available under NDA.

M35101

Contactless Memory Chip

13.56 MHz, 2048-bit High Endurance EEPROM

s

ISO 14443-2 Type-B Standard Compliant

s

13.56 MHz Carrier Frequency

s

847 kHz Subcarrier Frequency

s

106 Kbit/second Data Transfer

s

Internal Tuning Capacitor

s

Data Modulation:

– ASK from Reader to Card

– BPSK from Card to Reader

s

2048-bit EEPROM with Write Protect Feature

s

BYTE and PAGE READ (up to 16 Bytes)

s

BYTE and PAGE WRITE (up to 16 Bytes)

s

Self-Timed Programming Cycle with Auto-

Erase

s

100,000 Erase/Write Cycles (minimum)

s

40 Year Data Retention (minimum)

s

5 ms Programming Time (typical)

DESCRIPTION

The M35101 is a contactless memory, powered by

the received carrier electromagnetic wave. It is a

2048-bit EEPROM, organised as 16 pages of

16 x 8 bits.

The M35101 conforms to the ISO 14443-2 Type-B

recommendation for the transfer of power and sig-

nals via radio transmission. The card reader cir-

cuitry 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.

Antenna

(C20)

Wafer

Antenna

(C30)

Figure 1. Logic Diagram

AI02490

AC1

M35101

AC0

Power

Supply

Regulator

BPSK

Load

Modulator

ASK

Demodulator

2 Kbit

EEPROM

Table 1. Signal Names

AC1

Antenna Coil

AC0

Antenna Coil

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