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参数资料
| 型号： | EFM32LG942F64 |
| 厂商： | Energy Micro |
| 文件页数： | 66/68页 |
| 文件大小： | 0K |
| 描述： | IC MCU 32BIT 64KB FLASH QFP64 |
| 标准包装： | 1,000 |
| 系列： | Leopard Gecko |
| 核心处理器： | ARM? Cortex?-M4 |
| 芯体尺寸： | 32-位 |
| 速度： | 48MHz |
| 连通性： | I²C，IrDA，智能卡，SPI，UART/USART，USB |
| 外围设备： | 欠压检测/复位，DMA，LCD，POR，PWM，WDT |
| 输入/输出数： | 50 |
| 程序存储器容量： | 64KB（64K x 8） |
| 程序存储器类型： | 闪存 |
| RAM 容量： | 32K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 1.85 V ~ 3.8 V |
| 数据转换器： | A/D 8x12b，D/A 2x12b |
| 振荡器型： | 外部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 64-TQFP |
| 包装： | 带卷 (TR) |
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Preliminary
...the world's most energy friendly microcontrollers
2013-06-28 - EFM32LG942FXX - d0121_Rev1.10
7
www.energymicro.com
power domain enables the EFM32LG942 to keep track of time and retain data, even if the main power
source should drain out.
2.1.27 Advanced Encryption Standard Accelerator (AES)
The AES accelerator performs AES encryption and decryption with 128-bit or 256-bit keys. Encrypting or
decrypting one 128-bit data block takes 52 HFCORECLK cycles with 128-bit keys and 75 HFCORECLK
cycles with 256-bit keys. The AES module is an AHB slave which enables efficient access to the data
and key registers. All write accesses to the AES module must be 32-bit operations, i.e. 8- or 16-bit
operations are not supported.
2.1.28 General Purpose Input/Output (GPIO)
In the EFM32LG942, there are 50 General Purpose Input/Output (GPIO) pins, which are divided into
ports with up to 16 pins each. These pins can individually be configured as either an output or input. More
advanced configurations like open-drain, filtering and drive strength can also be configured individually
for the pins. The GPIO pins can also be overridden by peripheral pin connections, like Timer PWM
outputs or USART communication, which can be routed to several locations on the device. The GPIO
supports up to 16 asynchronous external pin interrupts, which enables interrupts from any pin on the
device. Also, the input value of a pin can be routed through the Peripheral Reflex System to other
peripherals.
2.1.29 Liquid Crystal Display Driver (LCD)
The LCD driver is capable of driving a segmented LCD display with up to 8x16 segments. A voltage
boost function enables it to provide the LCD display with higher voltage than the supply voltage for the
device. In addition, an animation feature can run custom animations on the LCD display without any
CPU intervention. The LCD driver can also remain active even in Energy Mode 2 and provides a Frame
Counter interrupt that can wake-up the device on a regular basis for updating data.
2.2 Configuration Summary
The features of the EFM32LG942 is a subset of the feature set described in the EFM32LG Reference
Manual. Table 2.1 (p. 7) describes device specific implementation of the features.
Table 2.1. Configuration Summary
Module
Configuration
Pin Connections
Cortex-M3
Full configuration
NA
DBG
Full configuration
DBG_SWCLK, DBG_SWDIO,
DBG_SWO
MSC
Full configuration
NA
DMA
Full configuration
NA
RMU
Full configuration
NA
EMU
Full configuration
NA
CMU
Full configuration
CMU_OUT0, CMU_OUT1
WDOG
Full configuration
NA
PRS
Full configuration
NA
USB
Full configuration
USB_VBUS, USB_VBUSEN,
USB_VREGI, USB_VREGO, USB_DM,
USB_DMPU, USB_DP, USB_ID
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EFM32LG942F64-QFP64 | 制造商:Energy Micro AS 功能描述:LEOPARD GECKO MICROCONTROLLER - Tape and Reel 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 64KB FLASH 64TQFP |
| EFM32LG942F64-QFP64T | 制造商:Energy Micro AS 功能描述:32 BIT ARM MPU, LEOPARD GECKO - Trays |
| EFM32LG942F64-QFP64-T | 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 64KB FLASH 64TQFP |
| EFM32LG942F64-T | 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 64KB FLASH 64TQFP |
| EFM32LG980F128 | 功能描述:ARM微控制器 - MCU 128KB FL 32KB RAM RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT |
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