Datasheet

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
MSP430F673x
MSP430F672x
www.ti.com SLAS731C –DECEMBER 2011–REVISED FEBRUARY 2013
eUSCI (I2C Mode)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 17)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
Internal: SMCLK, ACLK
f
eUSCI
eUSCI input clock frequency External: UCLK f
SYSTEM
MHz
Duty cycle = 50% ± 10%
f
SCL
SCL clock frequency 2 V/3 V 0 400 kHz
f
SCL
= 100 kHz 5.1
t
HD,STA
Hold time (repeated) START 2 V/3 V µs
f
SCL
> 100 kHz 1.5
f
SCL
= 100 kHz 5.1
t
SU,STA
Setup time for a repeated START 2 V/3 V µs
f
SCL
> 100 kHz 1.4
t
HD,DAT
Data hold time 2 V/3 V 0.4 µs
f
SCL
= 100 kHz 2 V/3 V 5.0
t
SU,DAT
Data setup time µs
f
SCL
> 100 kHz 2 V/3 V 1.3
f
SCL
= 100 kHz 5.2
t
SU,STO
Setup time for STOP 2 V/3 V µs
f
SCL
> 100 kHz 1.7
UCGLITx = 0 75 220 ns
UCGLITx = 1 35 120 ns
Pulse duration of spikes suppressed by input
t
SP
2 V/3 V
filter
UCGLITx = 2 30 60 ns
UCGLITx = 3 20 35 ns
UCCLTOx = 1 30 ms
t
TIMEOUT
Clock low timeout UCCLTOx = 2 2 V/3 V 33 ms
UCCLTOx = 3 37 ms
Figure 17. I2C Mode Timing
LCD_C - Recommended Operating Conditions
PARAMETER CONDITIONS MIN NOM MAX UNIT
Supply voltage range, charge LCDCPEN = 1, 0000 < VLCDx ≤ 1111
V
CC,LCD_C,CP en,3.6
2.2 3.6 V
pump enabled, V
LCD
≤ 3.6 V (charge pump enabled, V
LCD
≤ 3.6 V)
Supply voltage range, charge LCDCPEN = 1, 0000 < VLCDx ≤ 1100
V
CC,LCD_C,CP en,3.3
2.0 3.6 V
pump enabled, V
LCD
≤ 3.3 V (charge pump enabled, V
LCD
≤ 3.3 V)
Supply voltage range, internal
V
CC,LCD_C,int. bias
LCDCPEN = 0, VLCDEXT = 0 2.4 3.6 V
biasing, charge pump disabled
Supply voltage range, external
V
CC,LCD_C,ext. bias
LCDCPEN = 0, VLCDEXT = 0 2.4 3.6 V
biasing, charge pump disabled
Supply voltage range, external
V
CC,LCD_C,VLCDEXT
LCD voltage, internal or external LCDCPEN = 0, VLCDEXT = 1 2.0 3.6 V
biasing, charge pump disabled
External LCD voltage at
V
LCDCAP/R33
LCDCAP/R33, internal or external LCDCPEN = 0, VLCDEXT = 1 2.4 3.6 V
biasing, charge pump disabled
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