FAN54013_12 Datasheet, PDF (10/36 Pages) Fairchild Semiconductor – FAN54010 / FAN54011 / FAN54012 / FAN54013 / FAN54014

I²C Timing Specifications
Guaranteed by design.
Symbol
Parameter
t_FDA SDA Fall Time
t_SU;STO Stop Condition Setup Time
C_B Capacitive Load for SDA, SCL
Conditions
Standard Mode
Fast Mode
High-Speed Mode, C_B < 100 pF
High-Speed Mode, C_B < 400 pF
Standard Mode
Fast Mode
High-Speed Mode
Min. Typ.
20+0.1C_B
20+0.1C_B
10
20
4
600
160
Max.
300
300
80
160
400
Unit
ns
s
ns
ns
pF
Timing Diagrams
t_F
SDA
SCL
t_HD;STA
START
t_R
t_LOW
t_SU;STA
t_HIGH
T_SU;DAT
t_HD;DAT
t_HD;STA
REPEATED
START
Figure 5. I²C Interface Timing for Fast and Slow Modes
t_BUF
t_HD;STO
STOP
START
t_FDA
t_RDA
t_SU;DAT
SDAH
t_SU;STA
t_RCL1
t_FCL
t_RCL
SCLH
t_HD;STA
t_LOW
t_HIGH
t_HD;DAT
REPEATED
START
note A
REPEATED
START
STOP
t_SU;STO
= MCS Current Source Pull-up
= R_P Resistor Pull-up
Note A: First rising edge of SCLH after Repeated Start and after each ACK bit.
Figure 6. I²C Interface Timing for High-Speed Mode
© 2011 Fairchild Semiconductor Corporation
FAN5401X Family • Rev. 1.0.4
10
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