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參數(shù)資料
| 型號： | EFM32LG942F256 |
| 廠商： | Energy Micro |
| 文件頁數(shù)： | 66/68頁 |
| 文件大小： | 0K |
| 描述： | IC MCU 32BIT 256KB FLASH QFP64 |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 系列： | Leopard Gecko |
| 核心處理器： | ARM? Cortex?-M4 |
| 芯體尺寸： | 32-位 |
| 速度： | 48MHz |
| 連通性： | I²C，IrDA，智能卡，SPI，UART/USART，USB |
| 外圍設(shè)備： | 欠壓檢測/復(fù)位，DMA，LCD，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 50 |
| 程序存儲器容量： | 256KB（256K x 8） |
| 程序存儲器類型： | 閃存 |
| RAM 容量： | 32K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 1.85 V ~ 3.8 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 8x12b，D/A 2x12b |
| 振蕩器型： | 外部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 64-TQFP |
| 包裝： | 帶卷 (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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EFM32LG942F256-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 256KB FLASH 64TQFP |
| EFM32LG942F256-QFP64T | 制造商:Energy Micro AS 功能描述:32 BIT ARM MPU, LEOPARD GECKO - Trays |
| EFM32LG942F256-QFP64-T | 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 256KB FLASH 64TQFP |
| EFM32LG942F256-T | 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 256KB FLASH 64TQFP |
| EFM32LG942F64 | 功能描述:ARM微控制器 - MCU 64KB FL 32KB RAM RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:72 MHz 程序存儲器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT |
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