MSP430G2X52_14 Datasheet, PDF (29/64 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430G2x52
MSP430G2x12
www.ti.com
SLAS722G – DECEMBER 2010 – REVISED MAY 2013
USI, Universal Serial Interface
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
f_USI
USI module clock frequency
TEST CONDITIONS
External: SCLK,
Duty cycle = 50% ± 10%
V_CC
MIN
TYP
f_SYSTEM
f_(SCLK)
V_OL,I2C
Serial clock frequency, slave mode
Low-level output voltage on SDA and
SCL
SPI slave mode
USI module in I2C mode,
I_(OLmax) = 1.5 mA
3V
3V
V_SS
MAX UNIT
MHz
6
V_SS
+ 0.4
MHz
V
Typical Characteristics -- USI Low-Level Output Voltage on SDA and SCL
5.0
V_CC = 2.2 V
4.0
T_A = 25°C
5.0
V_CC = 3 V
4.0
T_A = 25°C
3.0
3.0
T_A = 85°C
T_A = 85°C
2.0
2.0
1.0
1.0
0.0
0.0
0.2
0.4
0.6
0.8
1.0
V_OL − Low-Level Output Voltage − V
Figure 16. USI Low-Level Output Voltage vs Output Current
0.0
0.0
0.2
0.4
0.6
0.8
1.0
V_OL − Low-Level Output Voltage − V
Figure 17. USI Low-Level Output Voltage vs Output Current
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