MSP430F677X1_16 Datasheet, PDF (63/162 Pages) Texas Instruments – Polyphase Metering SoCs

MSP430F677x1, MSP430F676x1, MSP430F674x1
www.ti.com
SLAS815C – NOVEMBER 2012 – REVISED DECEMBER 2013
Schmitt-Trigger Inputs – General Purpose I/O
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
V_IT+ Positive-going input threshold voltage
TEST CONDITIONS
V_CC
1.8 V
3V
MIN TYP
0.80
1.50
V_IT– Negative-going input threshold voltage
1.8 V
0.45
3V
0.75
V_hys Input voltage hysteresis (V_IT+ – V_IT–)
1.8 V
0.3
3V
0.4
R_Pull
C_I
Pullup or pulldown resistor⁽¹⁾
Input capacitance
For pullup: V_IN = V_SS,
For pulldown: V_IN = V_CC
V_IN = V_SS or V_CC
20
35
5
(1) Also applies to RST pin when pullup or pulldown resistor is enabled.
MAX
1.40
2.10
1.00
1.65
0.85
1.0
UNIT
V
V
V
50 kΩ
pF
Inputs – Ports P1 and P2⁽¹⁾
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
t_(int)
External interrupt timing⁽²⁾
TEST CONDITIONS
V_CC
MIN
Port P1, P2: P1.x to P2.x, External trigger pulse duration
to set interrupt flag
2.2 V, 3 V
20
MAX UNIT
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
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
I_lkg(Px.y)
PARAMETER
High-impedance leakage current
TEST CONDITIONS
(1) (2)
V_CC
1.8 V, 3 V
MIN MAX UNIT
-50 +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.
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