SDA
SCL
t
HD,DAT
t
SU,DAT
t
HD,STA
t
HIGH
t
LOW
t
BUF
t
HD,STA
t
SU,STA
t
SP
t
SU,STO
MSP430F5338, MSP430F5336, MSP430F5335, MSP430F5333
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SLAS721D – AUGUST 2010 – REVISED DECEMBER 2015
5.33 USCI (I
2
C Mode)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see
Figure 5-15
)
PARAMETER
TEST CONDITIONS
V
CC
MIN
MAX
UNIT
Internal: SMCLK, ACLK
f
USCI
USCI input clock frequency
External: UCLK
f
SYSTEM
MHz
Duty cycle = 50% ±10%
f
SCL
SCL clock frequency
2.2 V, 3 V
0
400
kHz
f
SCL
≤
100 kHz
4.0
t
HD,STA
Hold time (repeated) START
2.2 V, 3 V
µs
f
SCL
> 100 kHz
0.6
f
SCL
≤
100 kHz
4.7
t
SU,STA
Setup time for a repeated START
2.2 V, 3 V
µs
f
SCL
> 100 kHz
0.6
t
HD,DAT
Data hold time
2.2 V, 3 V
0
ns
t
SU,DAT
Data setup time
2.2 V, 3 V
250
ns
f
SCL
≤
100 kHz
4.0
t
SU,STO
Setup time for STOP
2.2 V, 3 V
µs
f
SCL
> 100 kHz
0.6
2.2 V
50
600
Pulse duration of spikes suppressed by
t
SP
ns
input filter
3 V
50
600
Figure 5-15. I
2
C Mode Timing
Copyright © 2010–2015, Texas Instruments Incorporated
Specifications
35
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