NXP Semiconductors
Security Transponder (HITAG2)
Product Specification
PCF7936AS
6 QUICK REFERENCE DATA
PARAMETER
VALUE
UNIT
Carrier frequency
125
kHz
Data rate
- read
4.0
kbit/s
- write
5.2
kbit/s
Data coding
- read
Manchester or Bi-Phase
- write
Binary Pulse Length Modulation (BPLM)
Data transmission mode
Half-Duplex
Modulation
Amplitude Shift Keying (ASK)
Memory size
256
bit
Identifier (serial number and product type ID)
32
bit
Secret Key (Cipher Mode)
48
bit
Password (Password Mode)
32
bit
Authentication time
39
ms
Special Features
• Ciphered mutual authentication
• Ciphered data transmission
• 128 bit user EEPROM with programmable write protection
• Read/Write Password mode
• Read Only emulation modes (H400x, ISO 11784/85 and PCF7931)
2010 May 04
6
CONFIDENTIAL