NXP Semiconductors

Product Specification

Security Transponder and RISC Controller (STARC 2XLite)

PCF7x41ATJ

2013 Oct 15

6

CONFIDENTIAL

6

QUICK REFERENCE DATA

6.1 Transponder Operation

PARAMETER

VALUE

UNIT

Carrier frequency

125

kHz

Data rate

- read

- write

4.0

5.2

kbit/s

kbit/s

Data coding

- read

- write

Manchester or Bi-Phase

Binary Pulse Length Modulation (BPLM)

Data transmission mode

Half-Duplex

Modulation

Amplitude Shift Keying (ASK)

6.2 RISC Controller and Peripherals

PARAMETER

VALUE

UNIT

Operating supply voltage (RISC)

2.1 - 3.6

V

Power-down current (typical)

400

nA

ROM (Firmware – System ROM)

4 K

Byte

E-ROM (Application program)

4 K

Byte

RAM

128

Byte

EEPROM

512

Byte

General purpose /O

11

Operating speed, as derived from on-chip RC oscillator

0.125 - 2

MHz

Special Features

 EEPROM Erase/Write over full operating voltage range (2.1 to 3.6 V)

 Full control about Contactless LF Interface

 Programmable voltage comparator for battery voltage monitoring

 PWM generation

 Watchdog timer

 Up to 7 dedicated Wake-Up button inputs

Calculation Unit

 Features HT2 (48 bit) or HT3 (96 bit)

 Supports Pseudo Random Number generation (Rolling Code)