CRX14_05 Datasheet, PDF (32/40 Pages) STMicroelectronics – Low Cost ISO14443 type-B Contactless Coupler Chip with Anti-Collision, CRC Management and Anti-Clone Function

CRX14
Table 11. I²C DC Characteristics
Symbol
Parameter
Test Condition
I_LI
Input Leakage Current (SCL,
SDA, E0, E1, E2)
0V ≤V_IN ≤V_CC
I_LO
Output Leakage Current (SCL,
SDA, E0, E1, E2)
0V ≤V_OUT ≤V_CC, SDA in Hi-Z
I_CC Supply Current
V_CC = 5V, f_c = 400kHz (rise/fall time < 30ns),
RF OFF
V_CC = 5V, f_c = 400kHz (rise/fall time < 30ns),
RF ON
I_CC1 Supply Current (Stand-by)
V_IN = V_SS or V_CC, V_CC = 5V, RF OFF
Input Low Voltage (SCL, SDA)
V_IL
Input Low Voltage (E0, E1, E2)
Input High Voltage (SCL, SDA)
V_IH
Input High Voltage (E0, E1, E2)
V_OL Output Low Voltage (SDA)
I_OL = 3mA, V_CC = 5V
Min.
−0.3
−0.3
0.7V_CC
0.7V_CC
Max. Unit
±2
µA
±2
µA
6
mA
20 mA
5
mA
0.3V_CC V
0.3V_CC V
V_CC + 1 V
V_CC + 1 V
0.4
V
Figure 35. I²C AC Waveforms
tCHCL
CLCH
SCL
tDLCL
tDXCX
SDA IN
tCHDX
START
CONDITION
tCLDX
SDA
SDA
INPUT CHANGE
tCHDH
STOP &
BUS FREE
tDHDL
SCL
SDA OUT
tCLQV
DATA VALID
DATA OUTPUT
tCLQX
SCL
SDA IN
tCHDH
STOP
CONDITION
tRFEX
tCHDX
CRX14 command execution
START
CONDITION
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