Datasheet
MSP430BT5190
SLAS703A –APRIL 2010–REVISED AUGUST 2013
www.ti.com
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 0.85
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 the 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 duration
t
(int)
External interrupt timing
(2)
2.2 V, 3 V 20 ns
to 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 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)
PARAMETER TEST CONDITIONS V
CC
MIN MAX UNIT
I
lkg(Px.y)
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 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.
44 Submit Documentation Feedback Copyright © 2010–2013, Texas Instruments Incorporated
Product Folder Links: MSP430BT5190