
SMSC DS – FDC37N958FR
Page 297
Rev. 09/01/99
t
HD;STA
t
SU;STO
t
SU;STA
t
SU;DAT
t
HIGH
t
F
t
R
t
LOW
t
HD;DAT
t
HD;STA
t
BUF
AB_DATA
AB_CLK
FIGURE 46 - ACCESS.bus TIMING
Table 105
- ACCESS.Bus Timing Parameters
PARAMETER
SCL Clock Frequency
SYMBOL
f
SCL
MIN.
TYP.
MAX.
100
UNIT
kHz
t
BUF
Bus Free Time
4.7
μs
t
SU
;
STA
START Condition Set-Up Time
4.7
μs
t
HD
;
STA
START Condition Hold Time
4.0
μs
t
LOW
SCL LOW Time
4.7
μs
t
HIGH
SCL HIGH Time
4.0
μs
t
R
SCL and SDA Rise Time
1.0
μs
t
F
SCL and SDA Fall Time
0.3
μs
t
SU
;
DAT
Data Set-Up Time
0.25
μs
t
HD
;
DAT
Data Hold Time
0
μs
t
SU
;
STO
STOP Condition Set-Up Time
4.0
μs