PCF7341ATJ 查看數據表（PDF） - NXP Semiconductors.

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PCF7341ATJ

Security Transponder and RISC Controller (STARC 2XLite)

NXP Semiconductors. 

NXP Semiconductors

Security Transponder and RISC Controller (STARC 2XLite)

Product Specification

PCF7x41ATJ

5 BLOCK DIAGRAM

The PCF7x41ATJ features a high degree of integration and

incorporates the chip, coil and capacitors assembled in a

leaded stick package, see Figure 2.

Package

 L/C Resonance Circuit

 Rectified LF Filed supply blocking capacitor

Contactless Interface

 Rectifier and Voltage Limiter

 Modulator

 Clock Recovery

 Demodulator

 LF Field Detection

Calculation Unit

 HT2 (48 bit) and HT3 (96 bit) Algorithm

Power Management

 Supply Switch Logic

 Wake Up Sense (Button I/O)

 Watchdog Timer

 Reset Logic

RISC Controller and Peripherals

 8 Bit RISC (MRK )

 ROM (Firmware)

 E-ROM (Application program)

 RAM

 EEPROM

 Interrupt Control

 Timers / Counters

 I/O Ports

 Programmable Voltage Comparator

 System Clock (including on-chip RC oscillator)

Figure 2. Block Diagram

Resonance

circuit

PCF7941ATJ (PCF7341ATJ)

IN1

V7941 (V7341)

L

IN2

fRES = 125 kHz (typ)

VFLD

4K

Calculation

EROM (ROM)

Unit

4K

Interrupt

ROM

Control

I/O

128 Byte

RAM

Timer

Modulator

CVFLD

512 Byte

EEPROM

RC

Oscillator

Power Management

VSS

2013 Oct 15

5

CONFIDENTIAL

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