MSP43020X3 Datasheet, PDF (35/92 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

www.ti.com
MSP430F20x3
MSP430F20x2
MSP430F20x1
SLAS491H – AUGUST 2005 – REVISED AUGUST 2011
USI, Universal Serial Interface (MSP430F20x2, MSP430F20x3)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
f_USI USI clock frequency
TEST CONDITIONS
External: SCLK,
Duty cycle = 50% ±10%,
SPI slave mode
V_CC
2.2 V
3V
MIN TYP
V_OL,I2C Low-level output voltage on SDA and SCL
USI module in I2C mode,
I_(OLmax) = 1.5 mA
2.2 V/3 V
V_SS
MAX
10
16
UNIT
MHz
V_SS + 0.4 V
Typical Characteristics, USI Low-Level Output Voltage on SDA and SCL
(MSP430F20x2, MSP430F20x3)
USI LOW-LEVEL OUTPUT VOLTAGE
vs
OUTPUT CURRENT
USI LOW-LEVEL OUTPUT VOLTAGE
vs
OUTPUT CURRENT
5.0
V_CC = 2.2 V
5.0
V_CC = 3 V
T_A = 25°C
T_A = 25°C
4.0
4.0
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 14.
0.0
0.0
0.2
0.4
0.6
0.8
1.0
V_OL − Low-Level Output V oltage − V
Figure 15.
Copyright © 2005–2011, Texas Instruments Incorporated
35