Datasheet

MSP430x12x
MIXED SIGNAL MICROCONTROLLER
SLAS312C − JULY 2001 − REVISED SEPTEMBER 2004
17
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
USART (see Note 1)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
( )
USART: deglitch time
V
CC
= 2.2 V 200 430 800
ns
t
(
τ
)
USART: deglitch time
V
CC
= 3 V 150 280 500
ns
NOTE 1: The signal applied to the USART receive signal/terminal (URXD) should meet the timing requirements of t
(
τ
)
to ensure that the URXS
flip-flop is set. The URXS flip-flop is set with negative pulses meeting the minimum-timing condition of t
(
τ
)
. The operating conditions to
set the flag must be met independently from this timing constraint. The deglitch circuitry is active only on negative transitions on the
URXD line.
wake-up from lower power modes (LPMx)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
(LPM0)
V
CC
= 2.2 V/3 V 100
ns
t
(LPM2)
V
CC
= 2.2 V/3 V 100
ns
f
(MCLK)
= 1 MHz, V
CC
= 2.2 V/3 V 6
t
(LPM3)
Delay time (see Note 1)
f
(MCLK)
= 2 MHz, V
CC
= 2.2 V/3 V 6 μs
(LPM3)
Delay time (see Note 1)
f
(MCLK)
= 3 MHz, V
CC
= 2.2 V/3 V 6
μ
f
(MCLK)
= 1 MHz, V
CC
= 2.2 V/3 V 6
t
(LPM4)
f
(MCLK)
= 2 MHz, V
CC
= 2.2 V/3 V 6 μs
(LPM4)
f
(MCLK)
= 3 MHz, V
CC
= 2.2 V/3 V 6
μ
NOTE 1: Parameter applicable only if DCOCLK is used for MCLK.
RAM
PARAMETER MIN NOM MAX UNIT
V
(RAMh)
CPU halted (see Note 1) 1.6 V
NOTE 1: This parameter defines the minimum supply voltage V
CC
when the data in the program memory RAM remains unchanged. No program
execution should happen during this supply voltage condition.