CRX14_05 Datasheet, PDF (33/40 Pages) STMicroelectronics – Low Cost ISO14443 type-B Contactless Coupler Chip with Anti-Collision, CRC Management and Anti-Clone Function

Table 12. I²C AC Characteristics
Symbol
Alt.
Parameter
t_CH1CH2 ²
t_R
Clock Rise Time
t_CL1CL2 ²
t_F
Clock Fall Time
t_DH1DH2 ²
t_R
SDA Rise Time
t_DL1DL2 ²
t_F
SDA Fall Time
t_CHDX ¹
t_SU:STA Clock High to Input Transition
t_CHCL
t_HIGH Clock Pulse Width High
t_DLCL
t_HD:STA Input Low to Clock Low (START)
t_CLDX
t_HD:DAT Clock Low to Input Transition
t_CLCH
t_LOW Clock Pulse Width Low
t_DXCX
t_SU:DAT Input Transition to Clock Transition
t_CHDH
t_SU:STO Clock High to Input High (STOP)
t_DHDL
t_BUF Input High to Input Low (Bus Free)
t_CLQV
t_AA
Clock Low to Data Out Valid
t_CLQX
t_DH
Data Out Hold Time After Clock Low
f_C
f_SCL
Clock Frequency
Note: 1. For a reSTART condition, or following a write cycle.
2. Sampled only, not 100% tested
CRX14
Fast I²C
400 kHz
I²C
100 kHz
Unit
Min Max Min Max
300
1000 ns
300
300
ns
20
300
20 1000 ns
20
300
20
300
ns
600
4700
ns
600
4000
ns
600
4000
ns
0
0
µs
1.3
4.7
µs
100
250
ns
600
4000
ns
1.3
4.7
µs
1000
3500 ns
200
200
ns
400
100 kHz
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