AS1119
Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s
Table 5. I²C Timing Characteristics
Symbol
f
SCL
t
BUF
t
HOLDSTART
t
LOW
t
HIGH
t
SETUPSTART
t
SETUPDATA
t
HOLDDATA
t
RISE(SCL)
t
RISE(SCL1)
t
FALL(SCL)
SCL Frequency
Bus Free Time Between STOP and START Conditions
Hold Time for Repeated
START Condition
SCL Low Period
SCL High Period
Setup Time for Repeated
START Condition
Data Setup Time
Data Hold Time
SCL Rise Time
SCL Rise Time after Repeated START Condition and After
an ACK Bit
SCL Fall Time
SDA Rise Time
SDA Fall Time
10
10
10
20
20
Parameter
Conditions
Min
100
1.3
160
50
50
100
10
75
75
Typ
Max
1000
Unit
kHz
µs
ns
ns
t
RISE(SDA)
hn
ic a
al m
co s
A
nt G
en
ts
til
80
80
160
Pulse Width of Spike Suppressed
50
t
BUF
t
HOLDSTART
t
HIGH
t
SPIKESUP
t
HOLDSTART
t
R
t
LOW
t
SETUPDATA
t
F
t
SETUPSTOP
t
SETUPSTART
STOP START
t
HOLDDATA
Repeated
START
t
FALL(SDA)
t
SPIKESUP
Notes:
t
SETUPSTOP
STOP Condition Setup Time
1. The Min / Max values of the Timing Characteristics are guaranteed by design.
2. All limits are guaranteed. The parameters with min and max values are guaranteed with production tests or SQC
(Statistical Quality Control) methods.
Figure 3. Timing Diagram
SDI
SCL
Te
c
Revision 1.04
lv
40
80
40
ns
ns
ns
ns
ns
ns
ns
6 - 30
al
ns
ns
70
id
ns
ns
AMSCO [ AUSTRIAMICROSYSTEMS AG ]
