NXP Semiconductors

Product Specification

Security Transponder (HITAG2)

PCF7936AS

2010 May 04

27

CONFIDENTIAL

10 DEVICE CHARACTERISTICS

10.1 Electrical Characteristics

SYMBOL

PARAMETER

CONDITION

MIN

TYP

MAX

UNIT

Operating Conditions

Resonance frequency

121

129

kHz

BW

Bandwidth

2.3

kHz

Magnetic flux density,

Read direction

35

400

μT

PP

Magnetic flux density, Note 1

For EEPROM programming

35

400

μT

PP

Magnetic flux density, Note 1

For device authentication

35

400

μT

PP

LF field absorption in read direction, Note 1

8

μT

PP

Minimum modulation index (m), Note 1

Write direction, device programming and

authentication

95

%

EEPROM

Data retention time

Tamb = 50°C

20

years

Write endurance, page 1 to 7

100 k

cycle

Note

2. Parameters are measured with the Scemtech test equipment STM-1 in a Helmholtz arrangement according to section 11.

Transponder

LF Field

m =