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AS1117
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 6. Timing Characteristics
Symbol
f SCL
Parameter
SCL Frequency
Conditions
Min
0.1
Typ
Max
3.4
Unit
MHz
t BUF
t HOLDSTART
Bus Free Time Between STOP and
START Conditions
Hold Time for Repeated
START Condition
1.3
160
μs
ns
t LOW
t HIGH
SCL Low Period
SCL High Period
50
50
75
75
ns
ns
t SETUPSTART
t SETUPDATA
t HOLDDATA
Setup Time for Repeated
START Condition
Data Setup Time
Data Hold Time
100
10
70
ns
ns
ns
t RISE(SCL)
t RISE(SCL1)
t FALL(SCL)
t RISE(SDA)
t FALL(SDA)
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
40
80
40
80
80
ns
ns
ns
ns
ns
t SETUPSTOP STOP Condition Setup Time
160
ns
t SPIKESUP
Pulse Width of Spike Suppressed
50
ns
Key Readback
Debounce Time
20
ms
Notes:
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
t BUF
t HIGH
t HOLDSTART
t SPIKESUP
t HOLDSTART
t R
t LOW
t SETUPDATA
t F
t SETUPSTART
t SETUPSTOP
SCL
STOP START
t HOLDDATA
Repeated
START
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