MSP430F6779A Datasheet, PDF (30/176 Pages) Texas Instruments – Polyphase Metering SoCs

MSP430F6779A, MSP430F6778A, MSP430F6777A, MSP430F6776A, MSP430F6775A
MSP430F6769A, MSP430F6768A, MSP430F6767A, MSP430F6766A, MSP430F6765A
MSP430F6749A, MSP430F6748A, MSP430F6747A, MSP430F6746A, MSP430F6745A
SLAS982 – MAY 2014
www.ti.com
5.6 Low-Power Mode With LCD Supply Currents (Into V_CC) Excluding External Current
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)⁽¹⁾⁽²⁾
PARAMETER
Temperature (T_A)
V_CC
PMMCOREVx
-40°C
25°C
85°C
UNIT
TYP MAX TYP MAX TYP MAX
0
2.5
I_LPM3
Low-power mode 3 (LPM3)
1
2.6
LCD,
current, LCD 4-mux mode, 3 V
ext. bias
external biasing^{(3) (4)}
2
2.8
3
2.8
3.1
9.1
3.3
9.5
µA
3.5
9.9
3.5
6.0 10.0 25.0
0
2.9
I_LPM3
LCD,
int. bias
Low-power mode 3 (LPM3)
current, LCD 4-mux mode,
internal biasing, charge
3V
pump disabled^{(3) (5)}
1
2
3.1
3.2
3
3.3
3.5
9.7
3.7
10.1
µA
4.0
10.5
4.0
5.5 10.5 25.0
0
2.2
2.8
8.8
2.2 V
1
2.3
3.0
9.1
µA
Low-power mode 3 (LPM3)
2
2.5
I_LPM3
LCD,CP
current, LCD 4-mux mode,
internal biasing, charge
0
2.6
pump enabled^{(3) (6)}
1
2.8
3V
2
2.9
3.2
9.5
3.2
9.3
3.4
9.7
µA
3.6
10.1
3
3.0
3.7
10.2
(1) All inputs are tied to 0 V or to V_CC. Outputs do not source or sink any current.
(2) The currents are characterized with a Micro Crystal MS1V-T1K crystal with a load capacitance of 12.5 pF. The internal and external load
capacitance are chosen to closely match the required 12.5 pF.
(3) Current for watchdog timer and RTC clocked by ACLK included. ACLK = low frequency crystal operation (XTS = 0, XT1DRIVEx = 0).
CPUOFF = 1, SCG0 = 1, SCG1 = 1, OSCOFF = 0 (LPM3); f_ACLK = 32768 Hz, f_MCLK = f_SMCLK = f_DCO = 0 MHz
Current for brownout and high-side supervisor (SVS_H) in normal mode included. Low-side supervisor and monitors disabled (SVS_L,
SVM_L). High side monitor disabled (SVM_H). RAM retention enabled.
(4) LCDMx = 11 (4-mux mode), LCDREXT = 1, LCDEXTBIAS = 1 (external biasing), LCD2B = 0 (1/3 bias), LCDCPEN = 0 (charge pump
disabled), LCDSSEL = 0, LCDPREx = 101, LCDDIVx = 00011 (f_LCD = 32768 Hz / 32 / 4 = 256 Hz)
Current through external resistors not included (voltage levels are supplied by test equipment).
Even segments (S0, S2, ...) = 0, and odd segments (S1, S3, ...) = 1. No LCD panel load.
(5) LCDMx = 11 (4-mux mode), LCDREXT = 0, LCDEXTBIAS = 0 (internal biasing), LCD2B = 0 (1/3 bias), LCDCPEN = 0 (charge pump
disabled), LCDSSEL = 0, LCDPREx = 101, LCDDIVx = 00011 (f_LCD = 32768 Hz / 32 / 4 = 256 Hz)
Even segments (S0, S2, ...) = 0, and odd segments (S1, S3, ...) = 1. No LCD panel load.
(6) LCDMx = 11 (4-mux mode), LCDREXT = 0, LCDEXTBIAS = 0 (internal biasing), LCD2B = 0 (1/3 bias), LCDCPEN = 1 (charge pump
enabled), VLCDx = 1000 (V_LCD = 3 V typical), LCDSSEL = 0, LCDPREx = 101, LCDDIVx = 00011 (f_LCD = 32768 Hz / 32 / 4 = 256 Hz)
Even segments (S0, S2, ...) = 0, and odd segments (S1, S3, ...) = 1. No LCD panel load.
30
Specifications
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