Datasheet
MSP430FR4133, MSP430FR4132, MSP430FR4131
SLAS865B –OCTOBER 2014–REVISED AUGUST 2015
www.ti.com
5.12.4 Digital I/Os
Table 5-8. Digital Inputs
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
2 V 0.90 1.50
V
IT+
Positive-going input threshold voltage V
3 V 1.35 2.25
2 V 0.50 1.10
V
IT–
Negative-going input threshold voltage V
3 V 0.75 1.65
2 V 0.3 0.8
V
hys
Input voltage hysteresis (V
IT+
– V
IT–
) V
3 V 0.4 1.2
For pullup: V
IN
= V
SS
R
Pull
Pullup or pulldown resistor 20 35 50 kΩ
For pulldown: V
IN
= V
CC
C
I,dig
Input capacitance, digital only port pins V
IN
= V
SS
or V
CC
3 pF
Input capacitance, port pins with shared analog
C
I,ana
V
IN
= V
SS
or V
CC
5 pF
functions
High-impedance leakage current (also refer to
I
lkg(Px.y)
2 V, 3 V –20 +20 nA
(1)
and
(2)
)
(1) The leakage current is measured with V
SS
or V
CC
applied to the corresponding pins, unless otherwise noted.
(2) The leakage of the digital port pins is measured individually. The port pin is selected for input and the pullup or pulldown resistor is
disabled.
Table 5-9. Digital Outputs
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
I
(OHmax)
= –3 mA
(1)
2 V 1.4 2.0
V
OH
High-level output voltage V
I
(OHmax)
= –5 mA
(1)
3 V 2.4 3.0
I
(OLmax)
= 3 mA
(1)
2 V 0.0 0.60
V
OL
Low-level output voltage V
I
(OHmax)
= 5 mA
(1)
3 V 0.0 0.60
2 V 16
f
Port_CLK
Clock output frequency C
L
= 20 pF
(2)
MHz
3 V 16
2 V 10
t
rise,dig
Port output rise time, digital only port pins C
L
= 20 pF ns
3 V 7
2 V 10
t
fall,dig
Port output fall time, digital only port pins C
L
= 20 pF ns
3 V 5
(1) The maximum total current, I
(OHmax)
and I
(OLmax)
, for all outputs combined should not exceed ±48 mA to hold the maximum voltage drop
specified.
(2) The port can output frequencies at least up to the specified limit and might support higher frequencies.
24 Specifications Copyright © 2014–2015, Texas Instruments Incorporated
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