5
FN6756.1
December 10, 2015
t
IN
Pulse width Suppression Time at
SDA and SCL Inputs
Any pulse narrower than the max
spec is suppressed
50 ns
t
AA
SCL Falling Edge to SDA Output
Data Valid
SCL falling edge crossing 30% of
V
DD
, until SDA exits the 30% to
70% of V
DD
window
900 ns 11
t
BUF
Time the Bus Must be Free Before
the Start of a New Transmission
SDA crossing 70% of V
DD
during a
STOP condition, to SDA crossing
70% of V
DD
during the following
START condition
1300 ns
t
LOW
Clock LOW Time Measured at the 30% of V
DD
crossing
1300 ns
t
HIGH
Clock HIGH Time Measured at the 70% of V
DD
crossing
600 ns
t
SU:STA
START Condition Setup Time SCL rising edge to SDA falling
edge. Both crossing 70% of V
DD
600 ns
t
HD:STA
START Condition Hold Time From SDA falling edge crossing
30% of V
DD
to SCL falling edge
crossing 70% of V
DD
600 ns
t
SU:DAT
Input Data Setup Time From SDA exiting the 30% to 70%
of V
DD
window, to SCL rising edge
crossing 30% of V
DD
100 ns
t
HD:DAT
Input Data Hold Time From SCL falling edge crossing
30% of V
DD
to SDA entering the
30% to 70% of V
DD
window
0 900 ns
t
SU:STO
STOP Condition Setup Time From SCL rising edge crossing
70% of V
DD
, to SDA rising edge
crossing 30% of V
DD
600 ns
t
HD:STO
STOP Condition Hold Time From SDA rising edge to SCL
falling edge. Both crossing 70% of
V
DD
600 ns
t
DH
Output Data Hold Time From SCL falling edge crossing
30% of V
DD
, until SDA enters the
30% to 70% of V
DD
window
0ns
t
R
SDA and SCL Rise Time From 30% to 70% of V
DD
20 + 0.1 x Cb 300 ns 9, 10
t
F
SDA and SCL Fall Time From 70% to 30% of V
DD
20 + 0.1 x Cb 300 ns 9, 10, 11
Cb Capacitive Loading of SDA or SCL Total on-chip and off-chip 10 400 pF 9, 10
Rpu SDA and SCL Bus Pull-Up
Resistor Off-Chip
Maximum is determined by t
R
and
t
F
.
For Cb = 400pF, max is about
2k to~2.5k.
For Cb = 40pF, max is about 15k
to ~20k
1k 9, 10
NOTES:
6. IRQ
/F
OUT
inactive.
7. Typical values are for T = +25°C and 3.3V supply voltage.
8. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by
characterization and are not production tested.
9. Limits should be considered typical and are not production tested.
10. These are I
2
C specific parameters and are not production tested, however, they are used to set conditions for testing devices to
validate specification.
11. Parts will work with SDA pull-up voltage above the V
PULLUP
limit but the t
AA
and t
F
in the I
2
C parameters are not guaranteed.
12. Specified at +25°C.
Serial Interface Specifications Over the recommended operating conditions unless otherwise specified. (Continued)
SYMBOL PARAMETER TEST CONDITIONS
MIN
(Note 8) TYP (Note 7)
MAX
(Note 8) UNITS NOTES
ISL12058
