MSP430F249-EP_14 Datasheet, PDF (28/82 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F249-EP
MIXED SIGNAL MICROCONTROLLER
2008
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
Schmitt-trigger inputs − ports P1, P2, P3, P4, P5, P6, RST/NMI, JTAG, XIN, and XT2IN (see Note 6)
PARAMETER
TEST CONDITIONS
V_IT+ Positive-going input threshold voltage
V_IT− Negative-going input threshold voltage
V_hys Input voltage hysteresis (V_IT+ − V_IT−)
R_Pull Pullup/pulldown resistor
C_I
Input Capacitance
NOTE 6: XIN and XT2IN only in bypass mode
Pullup: V_IN = V_SS,
Pulldown: V_IN = V_CC
V_IN = V_SS or V_CC
VCC
2.2 V
3V
2.2 V
3V
2.2 V
3V
MIN
0.45 V_CC
1
1.35
0.25 V_CC
0.55
0.75
0.2
0.3
20
TYP
MAX
0.75 V_CC
1.65
2.25
0.55 V_CC
1.2
1.65
1
1
UNIT
V
V
V
35
50 kW
5
pF
inputs − ports P1 and P2
PARAMETER
t_int
External interrupt timing
t_cap Timer_A, Timer_B capture timing
TEST CONDITIONS
Port P1, P2: P1.x to P2.x, external
trigger pulse width to set the interrupt
flag (see Note 1)
TA0, TA1, TA2
TB0, TB1, TB2, TB3, TB4, TB5, TB6
VCC
MIN MAX UNIT
2.2 V/3 V
20
ns
2.2 V
62
ns
3V
50
f_{TAext Timer_A, Timer_B clock frequency externally}
f_TBext ^{applied to pin}
TACLK, TBCLK, INCLK: t_(H) = t_(L)
2.2 V
3V
8
MHz
10
f_TAint
f_TBint
Timer_A, Timer_B clock frequency
SMCLK or ACLK signal selected
2.2 V
3V
8
MHz
10
NOTE 1: 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, P2, P3, P4, P5, and P6 (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 pullup/pull−down resistor is
disabled..
standard inputs − RST/NMI
PARAMETER
V_IL Low-level input voltage
V_IH High-level input voltage
TEST CONDITIONS
VCC
2.2 V/3 V
2.2 V/3 V
MIN
V_SS
0.8V_CC
MAX
V_{SS + 0.6}
V_CC
UNIT
V
V
28
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