MSP430F1101A Datasheet, PDF (21/39 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430C11x1, MSP430F11x1A
MIXED SIGNAL MICROCONTROLLER
SLAS241H − SEPTEMBER 1999 − REVISED SEPTEMBER 2004
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
PUC/POR
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
t(POR_Delay)
VPOR
V(min)
Internal time delay to release POR
VCC threshold at which POR
release delay time begins
(see Note 1)
VCC threshold required to
generate a POR (see Note 2)
TA = −40°C
TA = 25°C
TA = 85°C
VCC |dV/dt| ≥ 1V/ms
VCC = 2.2 V/3 V
150 250 µs
1.4
1.8 V
1.1
1.5 V
0.8
1.2 V
0.2
V
t(reset)
NOTES:
RST/NMI low time for PUC/POR Reset is accepted internally
2
µs
1. VCC rise time dV/dt ≥ 1V/ms.
2. When driving VCC low in order to generate a POR condition, VCC should be driven to 200mV or lower with a dV/dt equal to or less
than −1V/ms. The corresponding rising VCC must also meet the dV/dt requirement equal to or greater than +1V/ms.
V
VCC
V
POR
V
(min)
2.0
1.8
1.8
1.6
1.4
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
−40
POR
No POR
POR
t
Figure 10. Power-On Reset (POR) vs Supply Voltage
1.5
Max
1.2
Min
1.1
0.8
25°C
−20
0
20
40
60
80
Temperature [°C]
Figure 11. V_POR vs Temperature
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