Datasheet

MSP430F471x3, MSP430F471x6, MSP430F471x7
MIXED SIGNAL MICROCONTROLLER
SLAS626C -- OCTOBER 2008 -- REVISED MARCH 2011
33
POST OFFICE BOX 655303  DALLAS, TEXAS 75265
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
Schmitt-trigger inputs -- Ports P1 to P5, P7 to P10, RST/NMI, JTAG (TCK, TMS, TDI/TCLK, TDO/TDI)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
P
i
t
i
i
i
t
t
h
h
l
d
0.45 0.75 V
CC
V
IT+
Positive-going input threshold
v
o
l
t
a
g
e
2.2 V 1.00 1.65
V
V
I
T
+
vo
l
t
age
3V 1.35 2.25
V
N
t
i
i
i
t
t
h
h
l
d
0.25 0.55 V
CC
V
IT--
Negative-going input threshold
v
o
l
t
a
g
e
2.2 V 0.55 1.20
V
V
I
T
--
vo
l
t
age
3V 0.75 1.65
V
V
In
p
ut volta
g
eh
y
steresis
(
V
I
T
+
--
2.2 V 0.2 1.0
V
V
hys
I
n
p
u
t
v
o
l
t
a
g
e
h
y
s
t
e
r
e
s
i
s
(
V
I
T
+
V
IT--
)
3V 0.3 1.0
V
R
Pull
Pullup/pulldown resistor
(not RST/NMI and JTAG pins)
For pullup: V
IN
=V
SS
,
For pulldown: V
IN
=V
CC
20 35 50 kΩ
C
I
Input capacitance V
IN
=V
SS
or V
CC
5 pF
inputs -- Ports P1, P2
PARAMETER TEST CONDITIONS V
CC
MIN MAX UNIT
t
(int)
External interrupt timing
Port P1, P2: P1.x to P2.x, external
trigger puls width to set interrupt flag
(see Note 1)
2.2 V/3 V 20 ns
NOTES: 1. An external signal sets the interrupt flag every time the minimum interrupt puls width t
(int)
is met. It may be set even with trigger signals
shorter than t
(int)
.
leakage c urrent -- Ports P1 to P5, P7 to P10
PARAMETER TEST CONDITIONS V
CC
MIN MAX UNIT
I
lkg(Px.x)
High-impedance leakage current See Notes 1 and 2 2.2 V/3 V 50 nA
NOTES: 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.