Datasheet

MSP430x461x1, MSP430x461x
MIXED SIGNAL MICROCONTROLLER
38
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
LCD_A
PARAMETER TEST CONDITIONS
V
CC
MIN TYP MAX UNIT
V
CC(LCD)
Supply voltage (see Note 2)
Charge pump enabled
(LCDCPEN = 1; VLCDx > 0000)
2.2 3.6 V
I
CC(LCD)
Supply current (see Note 2 )
V
LCD(typ)
=3 V; LCDCPEN = 1,
VLCDx= 1000; all segments on,
f
LCD =
f
ACLK
/32,
no LCD connected (see Note 4)
T
A
= 25°C
2.2 V 3 µA
C
LCD
Capacitor on LCDCAP
(see Note 1 and Note 3)
Charge pump enabled
(LCDCPEN = 1; VLCDx > 0000)
4.7 µF
f
LCD
LCD frequency 1.1 kHz
VLCDx = 0000 V
CC
VLCDx = 0001 2.60
VLCDx = 0010 2.66
VLCDx = 0011 2.72
VLCDx = 0100 2.78
VLCDx = 0101 2.84
VLCDx = 0110 2.90
V
LCD voltage (see Note 3)
VLCDx = 0111 2.96
V
V
LCD
LCD voltage (see Note 3)
VLCDx = 1000
3.02
V
VLCDx = 1001 3.08
VLCDx = 1010 3.14
VLCDx = 1011 3.20
VLCDx = 1100 3.26
VLCDx = 1101 3.32
VLCDx = 1110 3.38
VLCDx = 1111 3.44 3.60
R
LCD
LCD driver output impedance
V
LCD
=3 V; CPEN = 1;
VLCDx = 1000, I
LOAD
=  10 µΑ
2.2 V 10 kΩ
NOTES: 1. Enabling the internal charge pump with an external capacitor smaller than the minimum specified might damage the device.
2. Refer to the supply current specifications I
(LPM3)
for additional current specifications with the LCD_A module active.
3. Segments S0 through S3 are disabled when the LCD charge pump feature is enabled (LCDCPEN = 1) and cannot be used together
with the LCD charge pump. In addition, when using segments S0 through S3 with an external LCD voltage supply, V
LCD
≤ AV
CC
.
4. Connecting an actual display will increase the current consumption depending on the size of the LCD.