Datasheet

MSP430FR4133, MSP430FR4132, MSP430FR4131
www.ti.com SLAS865B –OCTOBER 2014–REVISED AUGUST 2015
5.12.8 LCD Controller
Table 5-20. LCD Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
PARAMETER CONDITIONS MIN NOM MAX UNIT
LCDCPEN = 1, 0000 < VLCDx ≤ 1111,
Supply voltage range, charge pump
V
CC,LCD,CP en,3.6
LCDREFEN = 1 (charge pump enabled, 1.8 3.6 V
enabled, V
LCD
≤ 3.6 V
V
LCD
≤ 3.6 V)
Supply voltage range, external
V
CC,LCD,ext. bias
LCDCPEN = 1, LCDREFEN = 0 1.8 3.6 V
biasing, charge pump enabled
Supply voltage range, external LCD
V
CC,LCD,VLCDEXT
voltage, external biasing, charge LCDCPEN = 0, LCDSELVDD = 0 1.8 3.6 V
pump disabled
External LCD voltage at
V
R33
LCDCAP/R33, external biasing, LCDCPEN = 0, LCDSELVDD = 0 2.4 3.6 V
charge pump disabled
C
LCDCAP
0.1 µF
C
R33
0.1 µF
C
R23
0.1 µF
C
R13
0.1 µF
f
LCD
= 2 × mux × f
FRAME
with
f
Frame
LCD frame frequency range 16 32 64 Hz
mux = 1 (static), 2, 3, 4
f
ACLK,in
ACLK input frequency range 30 32 40 kHz
C
Panel
Panel capacitance 32-Hz frame frequency 8000 pF
LCDCPEN = 0, LCDSELVDD = 0,
V
R33
Analog input voltage at R33 2.4 3.6 V
LCDREFEN = 0
LCDCPEN = 0, LCDSELVDD = 0,
V
R23,1/3bias
Analog input voltage at R23 1.2 2.4 V
LCDREFEN = 0
Analog input voltage at R13 with
V
R13,1/3bias
0.0 1.2 V
1/3 biasing
External LCD reference voltage LCDCPEN = 1, LCDSELVDD = 0,
V
LCDREF/R13
0.8 1.0 1.2 V
applied at LCDREF/R13 LCDREFEN = 0
Copyright © 2014–2015, Texas Instruments Incorporated Specifications 33
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