DEMOKITCRX14 STMicroelectronics, DEMOKITCRX14 Datasheet - Page 36

• 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

DC and AC parameters
9
36/47
DC and AC parameters
This section summarizes the operating and measurement conditions, and the DC and AC
characteristics of the device. The parameters in the DC and AC Characteristic tables that
follow are derived from tests performed under the Measurement Conditions summarized in
the relevant tables. Designers should check that the operating conditions in their circuit
match the measurement conditions when relying on the quoted parameters.
Table 9.
Figure 33. I²C AC testing I/O waveform
Table 10.
Table 11.
V
Ambient Operating Temperature (T
Input Rise and Fall Times
Input Pulse Voltages
Input and Output Timing Reference Voltages
Symbol
Symbol
CC
I
C
C
t
I
LO
LI
NS
Supply Voltage
IN
IN
Input Leakage Current
(SCL, SDA, E0, E1, E2)
Output Leakage Current
(SCL, SDA, E0, E1, E2)
1. Sampled only, not 100% tested.
2. T
Input Capacitance (SDA)
Input Capacitance (SCL, E0, E1, E2))
Low Pass Filter Input Time Constant (SCL & SDA Inputs)
I²C AC measurement conditions
I²C input parameters
I²C DC characteristics
A
= 25 °C, f = 400kHz.
0.2V CC
0.8V CC
Parameter
Parameter
Doc ID 8880 Rev 4
A
)
Parameter
(1,2)
0V  V
OUT
Test condition
0V V
 V
IN
CC
0.2V
0.3V
 V
Min.
–20
,
4.5
SDA in Hi-Z
CC
CC
CC
0.3V CC
0.7V CC
0.8V
0.7V
Max.
5.5
Min.
AI09235
85
50
Min.
100
CC
CC
Max.
400
Max.
8
6
±2
±2
Unit
CRX14
°C
ns
V
V
V
Unit
pF
pF
Unit
ns
µA
µA