Datasheet

MSP430FR573x
MSP430FR572x
SLAS639H –JULY 2011–REVISED SEPTEMBER 2013 www.ti.com
Schmitt-Trigger Inputs – General Purpose I/O
(P1.0 to P1.7, P2.0 to P2.7, P3.0 to P3.7, P4.0 to P4.1, PJ.0 to PJ.5, RST/NMI)
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 0.80 1.40
V
IT+
Positive-going input threshold voltage V
3 V 1.50 2.10
2 V 0.45 1.10
V
IT–
Negative-going input threshold voltage V
3 V 0.75 1.65
2 V 0.25 0.8
V
hys
Input voltage hysteresis (V
IT+
– V
IT–
) V
3 V 0.30 1.0
For pullup: V
IN
= V
SS
R
Pull
Pullup or pulldown resistor 20 35 50 kΩ
For pulldown: V
IN
= V
CC
C
I
Input capacitance V
IN
= V
SS
or V
CC
5 pF
Inputs – Ports P1 and P2
(1)
(P1.0 to P1.7, P2.0 to P2.7)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
MIN MAX UNIT
t
(int)
External interrupt timing
(2)
External trigger pulse duration to set interrupt flag 2 V, 3 V 20 ns
(1) Some devices may contain additional ports with interrupts. See the block diagram and terminal function descriptions.
(2) An external signal sets the interrupt flag every time the minimum interrupt pulse duration t
(int)
is met. It may be set by trigger signals
shorter than t
(int)
.
Leakage Current – General Purpose I/O
(P1.0 to P1.7, P2.0 to P2.7, P3.0 to P3.7, P4.0 to P4.1, PJ.0 to PJ.5, RST/NMI)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
MIN MAX UNIT
I
lkg(Px.x)
High-impedance leakage current
(1) (2)
2 V, 3 V -50 50 nA
(1) The leakage current is measured with V
SS
or V
CC
applied to the corresponding pin(s), unless otherwise noted.
(2) The leakage of the digital port pins is measured individually. The port pin is selected for input and the pullup/pulldown resistor is
disabled.
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