MSP430FR59691 Datasheet, PDF (52/131 Pages) Texas Instruments – MSP430FR59xx Mixed-Signal Microcontrollers

MSP430FR5969, MSP430FR59691, MSP430FR5968, MSP430FR5967
MSP430FR5959, MSP430FR5958, MSP430FR5957
MSP430FR5949, MSP430FR5948, MSP430FR5947, MSP430FR59471
SLAS704C – OCTOBER 2012 – REVISED JUNE 2014
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6.3 Operating Modes
The MSP430 has one active mode and seven software selectable low-power modes of operation. An
interrupt event can wake up the device from low-power modes LPM0 through LPM4, service the request,
and restore back to the low-power mode on return from the interrupt program. Low-power modes LPM3.5
and LPM4.5 disable the core supply to minimize power consumption.
Table 6-1. Operating Modes
Mode
Maximum System
Clock
Typical Current
Consumption,
T_A = 25°C
Typical Wake-up
Time
Wake-Up Events
CPU
FRAM
High-Frequency
Peripherals
Low-Frequency
Peripherals
Unclocked
Peripherals ⁽⁵⁾
MCLK
SMCLK
ACLK
Full Retention
SVS
Brownout
AM
Active
Active,
FRAM
Off ⁽¹⁾
16 MHz
LPM0
CPU Off⁽²⁾
16 MHz
LPM1
CPU Off
16 MHz
LPM2
Standby
50 kHz
LPM3
Standby
50 kHz
LPM4
Off
0 ⁽³⁾
LPM3.5
RTC only
50 kHz
LPM4.5
Shutdown
with SVS
Shutdown
without
SVS
0 ⁽³⁾
103
65
µA/MHz µA/MHz
70 µA at
1 MHz
35 µA at
1 MHz
0.7 µA
0.4 µA
0.3 µA
0.25 µA
0.2 µA
0.02 µA
N/A
N/A
on
on
off ⁽¹⁾
available
available
instant
all
off
standby
(or off⁽¹⁾)
available
available
6 µs
all
off
off
available
available
6 µs
LF
I/O
Comp
off
off
7 µs
LF
I/O
Comp
off
off
off
off
available available⁽⁴⁾
7 µs
I/O
Comp
off
off
off
off
250 µs
RTC
I/O
reset
off
reset
RTC
250 µs 1000 µs
I/O
reset
off
reset
reset
available
on
optional ⁽⁶⁾
on
yes
always
always
available
off
optional ⁽⁶⁾
on
yes
always
always
available
off
optional ⁽⁶⁾
on
yes
always
always
available
off
off
on
yes
optional ⁽⁷⁾
always
available⁽⁴⁾ available⁽⁴⁾
off
off
on
yes
optional ⁽⁷⁾
always
off
off
off
yes
optional ⁽⁷⁾
always
reset
off
off
off
no
optional ⁽⁷⁾
always
reset
off
off
off
no
on ⁽⁸⁾
off ⁽⁹⁾
always
(1) FRAM disabled in FRAM controller
(2) Disabling the FRAM through the FRAM controller allows the application to lower the LPM current consumption but the wake-up time
increases as soon as FRAM is accessed (for example, to fetch an interrupt vector). For a non-FRAM wake-up (for example, DMA
transfer to RAM) the wake-up is not delayed.
(3) All clocks disabled
(4) See Section 6.3.1, which describes the use of peripherals in LPM3 and LPM4.
(5) "Unclocked peripherals" are peripherals that do not require a clock source to operate; for example, the comparator and REF, or the
eUSCI when operated as an SPI slave.
(6) Controlled by SMCLKOFF.
(7) Activated SVS (SVSHE = 1) results in higher current consumption. SVS is not included in typical current consumption.
(8) SVSHE = 1
(9) SVSHE = 0
52
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