EFM32LG995F256 Energy Micro, EFM32LG995F256 Datasheet - Page 44

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EFM32LG995F256

Manufacturer Part Number
EFM32LG995F256
Description
ARM Microcontrollers - MCU 256KB FL 32KB RAM
Manufacturer
Energy Micro
Datasheet

Specifications of EFM32LG995F256

Rohs
yes
Core
ARM Cortex M3
Processor Series
Leopard Gecko (LG)
Data Bus Width
32 bit
Maximum Clock Frequency
48 MHz
Program Memory Size
256 KB
Data Ram Size
32 KB
On-chip Adc
Yes
Operating Supply Voltage
1.85 V to 3.8 V
Operating Temperature Range
- 40 C to + 85 C
Package / Case
BGA-120
Mounting Style
SMD/SMT
A/d Bit Size
12 bit
Interface Type
I2C, SPI, USB, UART
Number Of Programmable I/os
93
Program Memory Type
Flash

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
EFM32LG995F256
Manufacturer:
Energy Micro
Quantity:
10 000
Part Number:
EFM32LG995F256-T
Manufacturer:
Energy Micro
Quantity:
10 000
3.15 LCD
3.16 Digital Peripherals
2012-09-11 - EFM32LG995FXX - d0124_Rev1.00
Table 3.20. LCD
The total LCD current is given by Equation 3.3 (p. 44) . I
Total LCD Current Based on Operational Mode and Internal Boost
Table 3.21. Digital Peripherals
Symbol
f
NUM
V
I
I
V
Symbol
I
I
LCDFR
LCD
LCDBOOST
USART
UART
LCD
BOOST
SEG
Parameter
Frame rate
Number of segments sup-
ported
LCD supply voltage range
Steady state current con-
sumption.
Steady state Current contri-
bution of internal boost.
Boost Voltage
Parameter
USART current
UART current
Preliminary
I
LCDTOTAL
Condition
Internal boost circuit enabled
Display disconnected, stat-
ic mode, framerate 32 Hz, all
segments on.
Display disconnected,
quadruplex mode, framer-
ate 32 Hz, all segments on,
bias mode to ONETHIRD in
LCD_DISPCTRL register.
Internal voltage boost off
Internal voltage boost on,
boosting from 2.2 V to 3.0 V.
VBLEV of LCD_DISPCTRL
register to LEVEL0
VBLEV of LCD_DISPCTRL
register to LEVEL1
VBLEV of LCD_DISPCTRL
register to LEVEL2
VBLEV of LCD_DISPCTRL
register to LEVEL3
VBLEV of LCD_DISPCTRL
register to LEVEL4
VBLEV of LCD_DISPCTRL
register to LEVEL5
VBLEV of LCD_DISPCTRL
register to LEVEL6
VBLEV of LCD_DISPCTRL
register to LEVEL7
Condition
USART idle current, clock en-
abled
UART idle current, clock en-
abled
= I
LCD
...the world's most energy friendly microcontrollers
+ I
44
LCDBOOST
LCDBOOST
Min
Min
is zero if internal boost is off.
2.0
30
Typ
Typ
www.energymicro.com
36×8
3.08
3.17
3.26
3.34
3.43
3.52
5.63
250
550
8.4
3.0
3.6
7.5
0
Max
Max
200 Hz
3.8 V
Unit
seg
nA
nA
µA
µA
V
V
V
V
V
V
V
V
Unit
µA/
MHz
µA/
MHz
(3.3)

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