EFM32G890F64 Energy Micro, EFM32G890F64 Datasheet - Page 46

• Manufacturer Part Number: EFM32G890F64
• Description: MCU 32BIT 64KB FLASH 112-BGA
• Manufacturer: Energy Micro
• Series: Geckor

Specifications of EFM32G890F64

• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 32MHz
• Connectivity: EBI/EMI, I²C, IrDA, SmartCard, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT
• Number Of I /o: 90
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.8 V
• Data Converters: A/D 8x12b, D/A 2x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 112-LFBGA
• Processor Series: EFM32G890
• Core: ARM Cortex-M3
• Data Bus Width: 32 bit
• Data Ram Size: 16 KB
• Interface Type: I2C, UART
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 90
• Number Of Timers: 3
• Operating Supply Voltage: 1.8 V to 3.8 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

3.14 LCD
3.15 Digital Peripherals
2010-12-17 - d0010_Rev1.20
Table 3.18. LCD
The total LCD current is given by Equation 3.3 (p. 46) . I
Total LCD Current Based on Operational Mode and Internal Boost
Table 3.19. 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
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
46
LCDBOOST
LCDBOOST
Min
Min
is zero if internal boost is off.
2.0
30
Typ
Typ
www.energymicro.com
4×40
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)