Datasheet

MSP430F673x
MSP430F672x
SLAS731C –DECEMBER 2011–REVISED FEBRUARY 2013 www.ti.com
LCD_C - Recommended Operating Conditions (continued)
PARAMETER CONDITIONS MIN NOM MAX UNIT
Capacitor on LCDCAP when LCDCPEN = 1, VLCDx > 0000
C
LCDCAP
4.7 10 µF
charge pump enabled (charge pump enabled)
f
LCD
= 2 × mux × f
FRAME
f
Frame
LCD frame frequency range 0 100 Hz
with mux = 1 (static), 2, 3, 4 up to 8
f
ACLK,in
ACLK input frequency range 30 32 40 kHz
C
Panel
Panel capacitance 100-Hz frame frequency 10000 pF
V
CC
+0
V
R33
Analog input voltage at R33 LCDCPEN = 0, VLCDEXT = 1 2.4 V
.2
V
R03
+
LCDREXT = 1, LCDEXTBIAS = 1,
V
R23,1/3bias
Analog input voltage at R23 V
R13
2/3×(V
R33
- V
R33
V
LCD2B = 0
V
R03
)
V
R03
+
Analog input voltage at R13 with LCDREXT = 1, LCDEXTBIAS = 1,
V
R13,1/3bias
V
R03
1/3×(V
R33
- V
R23
V
1/3 biasing LCD2B = 0
V
R03
)
V
R03
+
Analog input voltage at R13 with LCDREXT = 1, LCDEXTBIAS = 1,
V
R13,1/2bias
V
R03
1/2×(V
R33
- V
R33
V
1/2 biasing LCD2B = 1
V
R03
)
V
R03
Analog input voltage at R03 R0EXT = 1 V
SS
V
Voltage difference between V
LCD
V
CC
+0
V
LCD
-V
R03
LCDCPEN = 0, R0EXT = 1 2.4 V
and R03 .2
External LCD reference voltage
V
LCDREF/R13
VLCDREFx = 01 0.8 1.2 1.5 V
applied at LCDREF/R13
LCD_C Electrical Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
V
LCD
LCD voltage VLCDx = 0000, VLCDEXT = 0 2.4 V to 3.6 V V
CC
V
LCDCPEN = 1, VLCDx = 0001 2 V to 3.6 V 2.58
LCDCPEN = 1, VLCDx = 0010 2 V to 3.6 V 2.64
LCDCPEN = 1, VLCDx = 0011 2 V to 3.6 V 2.71
LCDCPEN = 1, VLCDx = 0100 2 V to 3.6 V 2.78
LCDCPEN = 1, VLCDx = 0101 2 V to 3.6 V 2.83
LCDCPEN = 1, VLCDx = 0110 2 V to 3.6 V 2.90
LCDCPEN = 1, VLCDx = 0111 2 V to 3.6 V 2.96
LCDCPEN = 1, VLCDx = 1000 2 V to 3.6 V 3.02
LCDCPEN = 1, VLCDx = 1001 2 V to 3.6 V 3.07
LCDCPEN = 1, VLCDx = 1010 2 V to 3.6 V 3.14
LCDCPEN = 1, VLCDx = 1011 2 V to 3.6 V 3.21
LCDCPEN = 1, VLCDx = 1100 2 V to 3.6 V 3.27
LCDCPEN = 1, VLCDx = 1101 2.2 V to 3.6 V 3.32
LCDCPEN = 1, VLCDx = 1110 2.2 V to 3.6 V 3.38
LCDCPEN = 1, VLCDx = 1111 2.2 V to 3.6 V 3.44 3.6
I
CC,Peak,CP
Peak supply currents due to LCDCPEN = 1, VLCDx = 1111 2.2 V 400 µA
charge pump activities
t
LCD,CP,on
Time to charge C
LCD
when C
LCD
= 4.7µF, LCDCPEN = 0→1, 2.2 V 150 500 ms
discharged VLCDx = 1111
I
CP,Load
Maximum charge pump load LCDCPEN = 1, VLCDx = 1111 2.2 V 50 µA
current
R
LCD,Seg
LCD driver output impedance, LCDCPEN = 1, VLCDx = 1000, 2.2 V 10 kΩ
segment lines I
LOAD
= ±10µA
R
LCD,COM
LCD driver output impedance, LCDCPEN = 1, VLCDx = 1000, 2.2 V 10 kΩ
common lines I
LOAD
= ±10µA
70 Submit Documentation Feedback Copyright © 2011–2013, Texas Instruments Incorporated