MSP430FR6889 Datasheet, PDF (42/176 Pages) Texas Instruments – Mixed-Signal Microcontrollers

MSP430FR6889, MSP430FR68891, MSP430FR6888, MSP430FR6887
MSP430FR5889, MSP430FR58891, MSP430FR5888, MSP430FR5887
SLASE32A – AUGUST 2014 – REVISED MARCH 2015
www.ti.com
High-Frequency Crystal Oscillator, HFXT⁽¹⁾ (continued)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
f_Fault,HFXT
PARAMETER
Oscillator fault
frequency^{(8) (9)}
TEST CONDITIONS
V_CC
MIN TYP MAX UNIT
0
800 kHz
(8) Frequencies above the MAX specification do not set the fault flag. Frequencies in between the MIN and MAX might set the flag. A static
condition or stuck at fault condition will set the flag.
(9) Measured with logic-level input frequency but also applies to operation with crystals.
Table 5-6. DCO
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
f_DCO1
PARAMETER
DCO frequency range 1 MHz,
trimmed
TEST CONDITIONS
Measured at SMCLK, divide by 1,
DCORSEL = 0, DCOFSEL = 0,
DCORSEL = 1, DCOFSEL = 0
V_CC
MIN TYP
MAX UNIT
1
±3.5% MHz
f_DCO2.7
DCO frequency range 2.7 MHz, Measured at SMCLK, divide by 1,
trimmed
DCORSEL = 0, DCOFSEL = 1
2.667
±3.5% MHz
f_DCO3.5
DCO frequency range 3.5 MHz, Measured at SMCLK, divide by 1,
trimmed
DCORSEL = 0, DCOFSEL = 2
3.5
±3.5% MHz
f_DCO4
DCO frequency range 4 MHz, Measured at SMCLK, divide by 1,
trimmed
DCORSEL = 0, DCOFSEL = 3
4
±3.5% MHz
f_DCO5.3
DCO frequency range 5.3 MHz,
trimmed
Measured at SMCLK, divide by 1,
DCORSEL = 0, DCOFSEL = 4,
DCORSEL = 1, DCOFSEL = 1
5.333
±3.5% MHz
f_DCO7
DCO frequency range 7 MHz,
trimmed
Measured at SMCLK, divide by 1,
DCORSEL = 0, DCOFSEL = 5,
DCORSEL = 1, DCOFSEL = 2
7
±3.5% MHz
f_DCO8
DCO frequency range 8 MHz,
trimmed
Measured at SMCLK, divide by 1,
DCORSEL = 0, DCOFSEL = 6,
DCORSEL = 1, DCOFSEL = 3
8
±3.5% MHz
f_DCO16
DCO frequency range 16 MHz, Measured at SMCLK, divide by 1,
trimmed
DCORSEL = 1, DCOFSEL = 4
16 ±3.5%⁽¹⁾ MHz
f_DCO21
DCO frequency range 21 MHz, Measured at SMCLK, divide by 2,
trimmed
DCORSEL = 1, DCOFSEL = 5
21 ±3.5%⁽¹⁾ MHz
f_DCO24
DCO frequency range 24 MHz, Measured at SMCLK, divide by 2,
trimmed
DCORSEL = 1, DCOFSEL = 6
24 ±3.5%⁽¹⁾ MHz
f_DCO,DC
Duty cycle
Measured at SMCLK, divide by 1,
No external divide, all
DCORSEL/DCOFSEL settings except
DCORSEL = 1, DCOFSEL = 5 and
DCORSEL = 1, DCOFSEL = 6
48% 50%
52%
t_DCO,
JITTER
DCO jitter
df_DCO/dT DCO temperature drift⁽²⁾
Based on f_signal = 10 kHz and DCO
used for 12 bit SAR ADC sampling
source. This achieves >74 dB SNR due
to jitter (that is, it is limited by ADC
performance)
3.0 V
2
3 ns
0.01
%/ºC
(1) After a wakeup from LPM1, LPM2, LPM3 or LPM4 the DCO frequency f_DCO might exceed the specified frequency range for a few clock
cycles by up to 5% before settling into the specified steady state frequency range.
(2) Calculated using the box method: (MAX(–40ºC to 85ºC) – MIN(–40ºC to 85ºC)) / MIN(–40ºC to 85ºC) / (85ºC – (–40ºC))
42
Specifications
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MSP430FR58891 MSP430FR5888 MSP430FR5887