DEMOKITCRX14 STMicroelectronics, DEMOKITCRX14 Datasheet - Page 37

• Manufacturer Part Number: DEMOKITCRX14
• Description: RFID EVALUATION KIT ISO14443-B
• Manufacturer: STMicroelectronics
• Type: Development kitr

Specifications of DEMOKITCRX14

• Contents: CD-ROM, CRX14 Board, USB Transceiver, Samples and Documentation
• Processor To Be Evaluated: CRX14
• Interface Type: I2C
• Operating Supply Voltage: 5 V
• For Use With/related Products: CRX14
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-3704

CRX14
Table 11.
Figure 34. I²C AC waveforms
Symbol
SDA OUT
I
V
V
I
CC1
V
CC
OL
SDA IN
IH
IL
SDA IN
SCL
SCL
SCL
tCHCL
Supply Current
Supply Current (Stand-by)
Input Low Voltage (SCL,
SDA)
Input Low Voltage (E0, E1,
E2)
Input High Voltage (SCL,
SDA)
Input High Voltage (E0, E1,
E2)
Output Low Voltage (SDA)
I²C DC characteristics (continued)
CONDITION
CONDITION
Parameter
STOP
START
tCHDH
tCHDX
tDLCL
CRX14 command execution
DATA OUTPUT
Doc ID 8880 Rev 4
tCLQV
DATA VALID
tCLDX
INPUT
SDA
tRFEX
V
V
(rise/fall time < 30ns), RF OFF
CC
IN
= V
V
= 5V, f
CHANGE
I
CC
time < 30ns), RF ON
OL
SDA
SS
Test condition
= 3 mA, V
= 5 V, f
or V
C
tCLQX
tCHDX
= 400 kHz (rise/fall
OFF
CC
CLCH
tDXCX
C
, V
= 400 kHz
CC
CC
CONDITION
= 5 V
= 5 V, RF
START
DC and AC parameters
BUS FREE
STOP &
0.7V
0.7V
Min.
–0.3
–0.3
tCHDH
CC
CC
V
V
0.3V
0.3V
tDHDL
Max.
CC
CC
0.4
20
6
5
+ 1
+ 1
CC
CC
ai09236
Unit
37/47
mA
mA
mA
V
V
V
V
V