PCF7936AS/3851/C,1-CT NXP Semiconductors, PCF7936AS/3851/C,1-CT Datasheet - Page 28

• 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)
10.2 Timing Characteristics
Tamb = -40 to +85°C, f
Command Handling
t
t
t
t
Data Transmission
T
T
T
T
T
LF Field Power On Reset, Note 2
t
t
t
Read Only Mode
t
t
Notes
1. As detected by the transponder interface demodulator. The corresponding LF Field write pulse width applied by the
2. Characterized with the Scemtech test equipment STM-1 in a Helmholtz arrangement according to section 11.
3. Total delay (Tinit + Twait,RO) = 551 T0
2010 May 04
WAIT,Tr
WAIT,Bs
PROG
IDLE
START
INIT
RESET,SETUP
WAIT,SA
WAIT,RO
SYMBOL
BIT
WRP
LOG_0
LOG_1
STOP
basestation depends on the resonance circuit properties and actual system coupling factor.
Transponder response delay
Basestation response delay
EEPROM erase/write time
Idle time
Bit duration
Write pulse width
Write pulse repetition time, logic 0
Write pulse repetition time, logic 1
Write pulse length, stop condition
Transponder initialization time
Transponder initialization time
LF Field Power On Reset setup time
Timeout for START_AUTH command
Read Only Mode startup delay
SYS
= 125kHz, T
PARAMETER
O
= 1/f
SYS
. Unless otherwise specified
Note 1
B
B
Note 3
FIELD
FIELD
28
= 35 μ T
= 100 μ T
CONDITION
MIN
199
90
18
26
36
4
5
TYP
615
225
320
326
32
80
Product Specification
PCF7936AS
CONFIDENTIAL
MAX
206
80
10
22
32
UNIT
ms
ms
T
T
T
T
T
T
T
T
T
T
T
μ s
O
O
O
O
O
O
O
O
O
O
O