Datasheet
MSP430F5438, MSP430F5437, MSP430F5436, MSP430F5435
MSP430F5419, MSP430F5418
www.ti.com
SLAS612D –AUGUST 2009–REVISED AUGUST 2013
Schmitt-Trigger Inputs – General Purpose I/O
(1)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
1.8 V 0.80 1.40
V
IT+
Positive-going input threshold voltage V
3 V 1.50 2.10
1.8 V 0.45 1.00
V
IT–
Negative-going input threshold voltage V
3 V 0.75 1.65
1.8 V 0.3 0.8
V
hys
Input voltage hysteresis (V
IT+
– V
IT–
) V
3 V 0.4 1.0
For pullup: V
IN
= V
SS
R
Pull
Pullup or pulldown resistor
(2)
20 35 50 kΩ
For pulldown: V
IN
= V
CC
C
I
Input capacitance V
IN
= V
SS
or V
CC
5 pF
(1) Same parametrics apply to clock input pin when crystal bypass mode is used on XT1 (XIN) or XT2 (XT2IN).
(2) Also applies to RST pin when pullup or pulldown resistor is enabled.
Inputs – Ports P1 and P2
(1)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
MIN MAX UNIT
Port P1, P2: P1.x to P2.x, External trigger pulse width to
t
(int)
External interrupt timing
(2)
2.2 V, 3 V 20 ns
set interrupt flag
(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 width t
(int)
is met. It may be set by trigger signals shorter
than t
(int)
.
Leakage Current – General Purpose I/O
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)
1.8 V/3 V ±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 or pulldown resistor is
disabled.
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