Datasheet

V
OL
− Low-Level Output Voltage − V
0.0
1.0
2.0
3.0
4.0
5.0
0.0 0.2 0.4 0.6 0.8 1.0
V
CC
= 2.2 V
T
A
= 25°C
OL
I − Low-Level Output Current − mA
T
A
= 85°C
V
OL
− Low-Level Output Voltage − V
0.0
1.0
2.0
3.0
4.0
5.0
0.0 0.2 0.4 0.6 0.8 1.0
V
CC
= 3 V
T
A
= 25°C
OL
I − Low-Level Output Current − mA
T
A
= 85°C
MSP430G2x31
MSP430G2x21
SLAS694J –FEBRUARY 2010–REVISED FEBRUARY 2013 www.ti.com
USI, Universal Serial Interface
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
External: SCLK,
f
USI
USI clock frequency Duty cycle = 50% ±10%, f
SYSTEM
MHz
SPI slave mode
USI module in I2C mode, V
SS
V
OL,I2C
Low-level output voltage on SDA and SCL 3 V V
SS
V
I
(OLmax)
= 1.5 mA + 0.4
Typical Characteristics – USI Low-Level Output Voltage on SDA and SCL
Figure 14. USI Low-Level Output Voltage vs Output Current Figure 15. USI Low-Level Output Voltage vs Output Current
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