FAN54300 Datasheet, PDF (13/43 Pages) Fairchild Semiconductor – USB-Compliant, Dual-Power Input, Single-Cell, Li-Ion Switching Charger with USB-OTG Boost Regulator

I²C Timing Specifications
Guaranteed by design.
Symbol
Parameter
tFDA SDA Fall Time
tSU;STO Stop Condition Setup Time
CB Capacitive Load for SDA, SCL
Conditions
Standard Mode
Fast Mode
High-Speed Mode, CB < 100 pF
High-Speed Mode, CB < 400 pF
Standard Mode
Fast Mode
High-Speed Mode
Min. Typ. Max. Unit
20+0.1CB 300
20+0.1CB 300
ns
10 80
20 160
4
s
600
ns
160
ns
400 pF
Timing Diagrams
t_F
SDA
t_R
SCL
t_HD;STA
t_LOW
START
t_SU;STA
t_HIGH
T_SU;DAT
t_HD;DAT
t_HD;STA
REPEATED
START
Figure 6. 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 7. I²C Interface Timing for High-Speed Mode
© 2010 Fairchild Semiconductor Corporation
FAN54300 • Rev. 1.0.4
13
www.fairchildsemi.com