MSP430X241X Datasheet, PDF (34/98 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430x241x, MSP430x261x
MIXED SIGNAL MICROCONTROLLER
SLAS541A -- JUNE 2007 -- REVISED OCTOBER 2007
Schmitt-trigger inputs -- ports P1 through P8, RST/NMI, JTAG, XIN, and XT2IN (see Note 4)
PARAMETER
V_IT+ Positive-going input threshold voltage
V_IT-- Negative-going input threshold voltage
V_hys Input voltage hysteresis (V_IT+ -- V_IT--)
TEST CONDITIONS
VCC
2.2 V
3V
2.2 V
3V
2.2 V
3V
MIN
0.45 V_CC
1.0
1.35
0.25 V_CC
0.55
0.75
0.2
0.3
TYP
MAX
0.75 V_CC
1.65
2.25
0.55 V_CC
1.2
1.65
1.0
1.0
UNIT
V
V
V
R_Pull Pullup/pulldown resistor
C_I
Input capacitance
NOTE 4: XIN and XT2IN in bypass mode only.
Pullup: V_IN = V_SS,
Pulldown: V_IN = V_CC
V_IN = V_SS or V_CC
20
35
5
50 kΩ
pF
inputs -- ports P1 and P2
PARAMETER
TEST CONDITIONS
VCC
MIN MAX UNIT
t_int
External interrupt timing
Port P1, P2: P1.x to P2.x, external trigger pulse width to
set the interrupt flag (see Note)
2.2 V/3 V
20
ns
NOTE: The external signal sets the interrupt flag every time the minimum t_(int) parameters are met. It may be set even with trigger signals shorter
than t_(int).
leakage current -- ports P1 through P8 (see Note 1 and 2)
PARAMETER
TEST CONDITIONS
VCC
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 digital port pins is measured individually. The port pin is selected for input and the pull--up/pull--down resistor is
disabled..
34
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