MSP430F6438, MSP430F6436, MSP430F6435, MSP430F6433
SLAS720D – AUGUST 2010 – REVISED DECEMBER 2015
5.18 Internal Very-Low-Power Low-Frequency Oscillator (VLO)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
V
CC
MIN
TYP
MAX
UNIT
f
VLO
VLO frequency
Measured at ACLK
1.8 V to 3.6 V
6
9.4
14
kHz
df
VLO
/d
T
VLO frequency temperature drift
Measured at ACLK
(1)
1.8 V to 3.6 V
0.5
%/°C
df
VLO
/dV
CC
VLO frequency supply voltage drift
Measured at ACLK
(2)
1.8 V to 3.6 V
4
%/V
Duty cycle
Measured at ACLK
1.8 V to 3.6 V
40%
50%
60%
(1)
Calculated using the box method: (MAX(–40°C to +85°C) – MIN(–40°C to +85°C)) / MIN(–40°C to +85°C) / (85°C – (–40°C))
(2)
Calculated using the box method: (MAX(1.8 V to 3.6 V) – MIN(1.8 V to 3.6 V)) / MIN(1.8 V to 3.6 V) / (3.6 V – 1.8 V)
5.19 Internal Reference, Low-Frequency Oscillator (REFO)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
V
CC
MIN
TYP
MAX
UNIT
REFO oscillator current
I
REFO
T
A
= 25°C
1.8 V to 3.6 V
3
µA
consumption
REFO frequency calibrated
Measured at ACLK
1.8 V to 3.6 V
32768
Hz
f
REFO
Full temperature range
1.8 V to 3.6 V
±3.5%
REFO absolute tolerance
calibrated
T
A
= 25°C
3 V
±1.5%
df
REFO
/d
T
REFO frequency temperature drift
Measured at ACLK
(1)
1.8 V to 3.6 V
0.01
%/°C
REFO frequency supply voltage
df
REFO
/dV
CC
Measured at ACLK
(2)
1.8 V to 3.6 V
1.0
%/V
drift
Duty cycle
Measured at ACLK
1.8 V to 3.6 V
40%
50%
60%
t
START
REFO start-up time
40%/60% duty cycle
1.8 V to 3.6 V
25
µs
(1)
Calculated using the box method: (MAX(–40°C to +85°C) – MIN(–40°C to +85°C)) / MIN(–40°C to +85°C) / (85°C – (–40°C))
(2)
Calculated using the box method: (MAX(1.8 V to 3.6 V) – MIN(1.8 V to 3.6 V)) / MIN(1.8 V to 3.6 V) / (3.6 V – 1.8 V)
28
Specifications
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