Datasheet

STTS751 DC and AC parameters
Doc ID 16483 Rev 5 27/36
V
PV
Pull-up supply voltage
(open drain)
(Addr/Therm
)–0.3 3.6V
EVENT
, SDA, SCL –0.3 5.5 V
V
POR
Power On Reset threshold
(POR) - TS
V
DD
falling edge 1.75 V
t
TIMEOUT
SMBus timeout
(5)
25 35 ms
t
SP
Spike suppression
Pulse width of spikes that must
be suppressed by the input filter
Input filter on SCL and
SDA
50 ns
1. Valid for ambient operating temperature: T
A
= –40 to +125 °C; V
DD
= 2.25 V to 3.6 V (except where noted).
2. Typical numbers are for T
A
= +25 °C; V
DD
= 3.0 V
3. Not tested, guaranteed by design.
4. Accuracy measurements made at resolutions > 10 bits.
5. SMBus timeout min and max are valid for T
A
= –30 to +125 °C.
Table 28. DC and AC characteristics (continued)
Symbol Description Test condition
(1)
Min Typ
(2)
Max Unit
Table 29. AC characteristics
Symbol Description Min Typ Max Unit
f
SCL
SMBus/I
2
C clock frequency 10 400 kHz
t
HIGH
Clock high period 600 ns
t
LOW
Clock low period 1.3 µs
t
R
Clock/data rise time 300 ns
t
F
Clock/data fall time 300 ns
t
SU:DAT
Data setup time 100 ns
t
HD:DI
Data in hold time 0 ns
t
HD:DAT
Data out hold time 300 ns
t
SU:STA
Start condition setup time 600 ns
t
HD:STA
Hold time after (repeated) start condition. After this period,
the first clock cycle is generated.
600 ns
t
SU:STO
Stop condition setup time 600 ns
t
BUF
Bus free time between stop (P) and start (S) conditions 1.3 µs