Datasheet

MSP430F261x
MSP430F241x
www.ti.com SLAS541K –JUNE 2007–REVISED NOVEMBER 2012
Schmitt-Trigger Inputs (Ports P1 Through P8, RST/NMI, JTAG, XIN, and XT2IN)
(1)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
0.45 V
CC
0.75 V
CC
V
IT+
Positive-going input threshold voltage 2.2 V 1.00 1.65 V
3 V 1.35 2.25
0.25 V
CC
0.55 V
CC
V
IT-
Negative-going input threshold voltage 2.2 V 0.55 1.20 V
3 V 0.75 1.65
2.2 V 0.2 1
V
hys
Input voltage hysteresis (V
IT+
- V
IT-
) V
3 V 0.3 1
For pullup: V
IN
= V
SS
,
R
Pull
Pullup/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
(1) XIN and XT2IN in bypass mode only
Inputs (Ports P1 and P2)
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 set
t
(int)
External interrupt timing 2.2 V, 3 V 20 ns
interrupt flag
(1)
(1) An external signal sets the interrupt flag every time the minimum interrupt pulse width t
(int)
is met. It may be set even with trigger signals
shorter than t
(int)
.
Leakage Current (Ports P1 Through P8)
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.y)
High-impedance leakage current
(1) (2)
2.2 V, 3 V ±50 nA
(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.
Standard Inputs (RST/NMI)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
MIN MAX UNIT
V
IL
Low-level input voltage 2.2 V, 3 V V
SS
V
SS
+ 0.6 V
V
IH
High-level input voltage 2.2 V, 3 V 0.8 V
CC
V
CC
V
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