MSP432P401R Datasheet, PDF (35/157 Pages) Texas Instruments – Mixed-Signal Microcontrollers

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MSP432P401R, MSP432P401M
SLAS826B – MARCH 2015 – REVISED FEBRUARY 2016
DCO (continued)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
t_{DCO_SETTLE_RANG}
DCO settling from worst
case DCORSELn to
E
DCORSELm
TEST CONDITIONS
DCO settled to within 0.5% of steady
state frequency
See Figure 5-1.
V_CC , T_A
1.62 V to 3.7 V
–40°C to 85°C
MIN TYP MAX UNIT
5 μs
t_{DCO_SETTLE_TUNE_}
DCO settling LSB change
of DCOTUNE within any
DCO settled to within 0.5% of steady
state frequency
LSB
DCORSEL setting
See Figure 5-1.
1.62 V to 3.7 V
–40°C to 85°C
2.2 μs
t_{DCO_SETTLE_TUNE}
DCO settling worst case
DCOTUNEn to
DCOTUNEm within any
DCORSEL setting
DCO settled to within 0.5% of steady
state frequency
See Figure 5-1.
1.62 V to 3.7 V
–40°C to 85°C
5 μs
DCO_OVERSHOOT DCO overshoot
Worst case DCO frequency change
See Figure 5-1.
1.62 V to 3.7 V
–40°C to 85°C
–10%
5%
t_START
DCO startup time⁽³⁾
DCO settled to within 0.5% of steady 1.62 V to 3.7 V
state frequency.
–40°C to 85°C
5
μs
(3) The maximum parasitic capacitance at the DCO External Resistance pin (DCOR) should not exceed 5pF to guarantee the specified
DCO startup time.
f_DCO
DCO_OVERSHOOT
± 0.5% of steady state
t
DCO_OVERSHOOT
DCO_{SETTLE_RANGE}
DCO_{SETTLE_TUNE_LSB}
DCO_{SETTLE_TUNE}
Figure 5-1. DCO Settling
Table 5-22. DCO Overall Tolerance
over operating free-air temperature range (unless otherwise noted)
RESISTOR OPTION
TEMPERATURE TEMPERATURE
CHANGE
DRIFT (%)
VOLTAGE
CHANGE
VOLTAGE DRIFT
(%)
–40°C to 85 °C
±3.125
1.62 V to 3.7 V
±0.2
Internal resistor
0°C
0
1.62 V to 3.7 V
±0.2
–40°C to 85 °C
±3.125
0V
0
–40°C to 85 °C
±0.438
1.62 V to 3.7 V
±0.2
External resistor
with 25-ppm TCR
0°C
0
1.62 V to 3.7 V
±0.2
–40°C to 85 °C
±0.438
0V
0
OVERALL DRIFT
(%)
±3.325
±0.2
±3.125
±0.638
±0.2
±0.438
OVERALL
ACCURACY (%)
±3.825
±0.7
±3.625
±1.138
±0.7
±0.938
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Specifications
35