Datasheet

MSP430F42x0
MIXED SIGNAL MICROCONTROLLER
SLAS455D − MARCH 2005 − REVISED APRIL 2007
19
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
SCHMITT-trigger inputs − Ports P1, P2, P5, and P6; RST/NMI; JTAG: TCK, TMS, TDI/TCLK, TDO/TDI
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
Positive going input threshold voltage
V
CC
= 2.2 V 1.1 1.55
V
V
IT+
Positive-going input threshold voltage
V
CC
= 3 V 1.5 1.98
V
V
Negative going input threshold voltage
V
CC
= 2.2 V 0.4 0.9
V
V
IT−
Negative-going input threshold voltage
V
CC
= 3 V 0.9 1.3
V
V
Input voltage hysteresis (V V )
V
CC
= 2.2 V 0.3 1.1
V
V
hys
Input voltage hysteresis (V
IT+
− V
IT−
)
V
CC
= 3 V 0.5 1
V
inputs Px.x, TAx
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
t
External interrupt timing
Port P1, P2: P1.x to P2.x, external trigger signal
2.2 V 62
ns
t
(int)
External interrupt timing
Port
P1,
P2:
P1.x
to
P2.x,
external
trigger
signal
for the interrupt flag, (see Note 1)
3 V 50
ns
t
Timer A capture timing
TA0 TA1 TA2
2.2 V 62
ns
t
(cap)
Timer_A capture timing TA0, TA1, TA2
3 V 50
ns
f
Timer_A clock frequenc
y
TACLK INCLK: t =t
2.2 V 8
MHz
f
(TAext)
Timer
_
A
clock
frequency
externally applied to pin
TACLK, INCLK:
t
(H)
= t
(L)
3 V 10
MHz
f
Timer A clock frequency
SMCLK or ACLK signal selected
2.2 V 8
MHz
f
(TAint)
Timer_A, clock frequency SMCLK or ACLK signal selected
3 V 10
MHz
NOTES: 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, P5, and P6 (see Note 1)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
I
lkg(Px.y)
Leakage
current
Port Px V
(Px.y)
(see Note 2) V
CC
= 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 port pin must be selected as input.