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PCF7341ATJ Schematic ( PDF Datasheet ) - NXP Semiconductors

Teilenummer PCF7341ATJ
Beschreibung Security Transponder and RISC Controller
Hersteller NXP Semiconductors
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Gesamt 18 Seiten
PCF7341ATJ Datasheet, Funktion
PCF7941ATJ
PCF7341ATJ
Security Transponder and RISC Controller
(STARC 2XLite)
Product Specification
CONFIDENTIAL
2013 Oct 15






PCF7341ATJ Datasheet, Funktion
NXP Semiconductors
Security Transponder and RISC Controller (STARC 2XLite)
Product Specification
PCF7x41ATJ
6 QUICK REFERENCE DATA
6.1 Transponder Operation
PARAMETER
Carrier frequency
Data rate
- read
- write
Data coding
- read
- write
Data transmission mode
Modulation
VALUE
125
UNIT
kHz
4.0 kbit/s
5.2 kbit/s
Manchester or Bi-Phase
Binary Pulse Length Modulation (BPLM)
Half-Duplex
Amplitude Shift Keying (ASK)
6.2 RISC Controller and Peripherals
PARAMETER
VALUE
Operating supply voltage (RISC)
2.1 - 3.6
Power-down current (typical)
400
ROM (Firmware – System ROM)
4K
E-ROM (Application program)
4K
RAM
128
EEPROM
512
General purpose /O
11
Operating speed, as derived from on-chip RC oscillator
0.125 - 2
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)
UNIT
V
nA
Byte
Byte
Byte
Byte
MHz
2013 Oct 15
6 CONFIDENTIAL

6 Page









PCF7341ATJ pdf, datenblatt
NXP Semiconductors
Security Transponder and RISC Controller (STARC 2XLite)
Product Specification
PCF7x41ATJ
11 DEVICE CHARACTERISTICS
11.1 Electrical Characteristics
Tamb = -40 to +85°C, fSYS = 125kHz, TO = 1/fSYS. Unless otherwise specified
SYMBOL
PARAMETER
CONDITION
Operating Conditions
CVFLD
L
Supply blocking capacitor
Transponder coil inductance
fRES Resonance frequency
BW Bandwidth
BTHR
Magnetic flux density,
Read direction
BPRG
Magnetic flux density for EEPROM m = 0,95, TWRP = 8 TO
programming
Note 1
BAUT
Magnetic flux density for device authentication m = 0,95, TWRP = 8 TO
Note 1
BREAD
MIPRG
LF field absorption in read direction, Note 1 BFIELD = 60 TPP
Minimum modulation index (m)
BFIELD = 60 TPP, TWRP = 8 TO
Write direction (device programming and Note 1
authentication).
MIN
119
2.3
60
60
60
4.5
TYP MAX UNIT
22 nF
4.8 mH
131 kHz
kHz
400 TPP
400 TPP
400 TPP
TPP
95 %
Note
1. Modulation index (m) and LF Field absorption (BREAD) are defined according to Figure 7.
2. Parameters are measured with the Scemtech test equipment STM-1 in a Helmholtz arrangement according to section 12.
3. Typical temperature dependency of bandwidth BW shown in Figure 8.
Transponder
LF Field
BMIN BMAX
Figure 7. Definition of modulation index (m) and LF field absorption (BREAD)
BMAX - BMIN
m=
BMAX + BMIN
BREAD = BMAX - BMIN
2013 Oct 15
12
Confidential

12 Page





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