MSP430FR573 Datasheet, PDF (63/109 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430FR573x
MSP430FR572x
www.ti.com
SLAS639D – JULY 2011 – REVISED AUGUST 2012
eUSCI (I2C Mode)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 10)
f_eUSCI
PARAMETER
eUSCI input clock frequency
TEST CONDITIONS
Internal: SMCLK, ACLK
External: UCLK
Duty cycle = 50% ± 10%
V_CC
MIN TYP MAX UNIT
f_SYSTEM MHz
f_SCL
t_HD,STA
t_SU,STA
t_HD,DAT
t_SU,DAT
t_SU,STO
SCL clock frequency
Hold time (repeated) START
Setup time for a repeated START
Data hold time
Data setup time
Setup time for STOP
f_SCL = 100 kHz
f_SCL > 100 kHz
f_SCL = 100 kHz
f_SCL > 100 kHz
f_SCL = 100 kHz
f_SCL > 100 kHz
UCGLITx = 0
2 V, 3 V
0
4.0
2 V, 3 V
0.6
4.7
2 V, 3 V
0.6
2 V, 3 V
0
2 V, 3 V
250
4.0
2 V, 3 V
0.6
50
400 kHz
µs
µs
ns
ns
µs
600 ns
t_SP
Pulse duration of spikes suppressed by
input filter
UCGLITx = 1
UCGLITx = 2
25
2 V, 3 V
12.5
300 ns
150 ns
UCGLITx = 3
6.25
75 ns
UCCLTOx = 1
27
ms
t_TIMEOUT Clock low timeout
UCCLTOx = 2
UCCLTOx = 3
2 V, 3 V
30
ms
33
ms
SDA
t_HD,STA
t_SU,STA
t_HD,STA
t_BUF
t_LOW
t_HIGH
t_SP
SCL
t_HD,DAT
t_SU,DAT
Figure 10. I2C Mode Timing
t_SU,STO
Copyright © 2011–2012, Texas Instruments Incorporated
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