MSP430G2744, MSP430G2544, MSP430G2444
www.ti.com
SLAS892C – MARCH 2013 – REVISED SEPTEMBER 2014
5.7
Schmitt-Trigger Inputs (Ports P1, P2, P3, P4, and 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
0.45 V
CC
0.75 V
CC
V
IT+
Positive-going input threshold voltage
V
3 V
1.35
2.25
0.25 V
CC
0.55 V
CC
V
IT-
Negative-going input threshold voltage
V
3 V
0.75
1.65
V
hys
Input voltage hysteresis (V
IT+
- V
IT-
)
3 V
0.3
1
V
For pullup: V
IN
= V
SS
,
R
Pull
Pullup or pulldown resistor
3 V
20
35
50
k
Ω
For pulldown: V
IN
= V
CC
C
I
Input capacitance
V
IN
= V
SS
or V
CC
5
pF
5.8
Leakage Current, Ports Px
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
V
CC
MIN
TYP
MAX
UNIT
I
lkg(Px.y)
High-impedance leakage current
(1) (2)
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.
5.9
Outputs, Ports Px
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
V
CC
MIN
TYP
MAX
UNIT
V
OH
High-level output voltage
I
OH(max)
= -6 mA
(1)
3 V
V
CC
- 0.3
V
V
OL
Low-level output voltage
I
OL(max)
= 6 mA
(1)
3 V
V
SS
+ 0.3
V
(1)
The maximum total current, I
OH(max)
and I
OL(max)
, for all outputs combined, should not exceed ±48 mA to hold the maximum voltage drop
specified.
5.10 Output Frequency, Ports Px
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
V
CC
MIN
TYP
MAX
UNIT
Px.y, C
L
= 20 pF,
f
Px.y
Port output frequency (with load)
3 V
12
MHz
R
L
= 1 k
Ω
against V
CC
/2
(1) (2)
f
Port_CLK
Clock output frequency
Px.y, C
L
= 20 pF
(2)
3 V
16
MHz
(1)
Alternatively, a resistive divider with two 2-k
Ω
resistors between V
CC
and V
SS
is used as load. The output is connected to the center tap
of the divider.
(2)
The output voltage reaches at least 10% and 90% V
CC
at the specified toggle frequency.
Copyright © 2013–2014, Texas Instruments Incorporated
Specifications
17
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