Digi NS9750 - Manual (Page 845)

w w w . d i g i e m b e d d e d . c o m 8 2 1
T i m i n g
I
2
C timing
Note:
All AC characteristics are measured with 10pF, unless otherwise noted.
Table 473 describes the values shown in the I
2
C timing diagram (Figure 128).
Figure 128: I
2
C timing
Standard mode Fast mode
Parm Description Min Max Min Max Unit
C1 iic_sda to iic_scl START hold time 4.0 0.6
μs
C2 iic_scl low period 4.7 1.3
μs
C3 iic_scl high period 4.7 1.3
μs
C4 iic_scl to iic_sda DATA hold time 0 0
μs
C5 iic_sda to iic_scl DATA setup time 250 100 ns
C6 iic_scl to iic_sda START setup time 4.7 0.6
μs
C7 iic_scl to iic_sda STOP setup time 4.0 0.6
μs
Table 473: I
2
C timing parameters
C4 C6 C7
C1 C2
C5
C3
iic_sda
iic_scl