PCF7936AS/3851/C,1-CT NXP Semiconductors, PCF7936AS/3851/C,1-CT Datasheet - Page 4

• Manufacturer Part Number: PCF7936AS/3851/C,1-CT
• Description: pcf7936as series 32-bit 125 khz read / write security...
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Security Transponder (HITAG2)
1 FEATURES
• Security
• Data transmission and energy supply via LF link
• 32 bit quasi unique device identification (serial number)
• Fast mutual authentication, 39ms
• 48 bit Secret Key
• 256 bit EEPROM for user data storage (128 bit) and
• EEPROM read/write protection features
• 20 years non-volatile data retention
• More than 100 000 EEPROM erase/write cycles
• Once the memory has been erased by UV, access is
• Read Only emulation modes (H400x, ISO 11784/85 and
• Excellent sensitivity in read and write mode
• Automotive temperature range: -40°C to +85°C
• Leadless plastic stick package
3 ORDERING INFORMATION
2010 May 04
PCF 7936AS/3851/C
PCF 7936AS/3851
authentication applications
and product type identification.
device configuration/personalization (128 bit)
denied
PCF7931)
TYPE NUMBER
EXTENDED
Transponder
SOT3851 leadless plastic stick package
SOT3851 leadless plastic stick package
NAME
for
use
in
contactless
DESCRIPTION
PACKAGE
4
2 GENERAL DESCRIPTION
The
Security
applications, where the transponder has to identify itself
towards the basestation as an authorized device.
The Security Transponder derives its power supply from
the magnetic field (LF field) established by the basestation.
No additional battery supply is needed. Data is transmitted
by modulating the LF field.
The Security Transponder features secure contactless
authentication, employing a Secret Key and a random
number in order to cipher any communication between the
device and the basestation. The secure contactless
authentication is ideally suited for vehicle immobilization
applications. In addition, the device features a factory
programmed quasi unique serial number that also serves
as product type identification.
If desired, the device may be operated as a Read/write
transponder with access control by password or as a
Read Only transponder.
PCF7936AS
Transponder
OUTLINE VERSION
SOT385-1
SOT385-1
is a high performance automotive proof
for
vehicle
Product Specification
TEMPERATURE
-40°C to +85°C
-40°C to +85°C
PCF7936AS
RANGE (°C)
CONFIDENTIAL
Immobilization