MSP430F22X2_17 Datasheet, PDF (47/94 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F22x2
MSP430F22x4
www.ti.com
SLAS504G – JULY 2006 – REVISED AUGUST 2012
USCI (I2C Mode)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 24)
f_USCI
PARAMETER
USCI 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
t_SP
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
Pulse width of spikes suppressed by input filter
2.2 V, 3 V
2.2 V, 3 V
2.2 V, 3 V
2.2 V, 3 V
2.2 V, 3 V
2.2 V, 3 V
2.2 V
3V
0
4
0.6
4.7
0.6
0
250
4
50 150
50 100
400 kHz
µs
µs
ns
ns
µs
600
ns
600
tHD,STA
tSU,STA tHD,STA
SDA
1/fSCL
tSP
SCL
tHD,DAT
tSU,DAT
tSU,STO
Figure 24. I2C Mode Timing
Copyright © 2006–2012, Texas Instruments Incorporated
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