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参 数 | 最 小 | 典 型 | 单 位 | 条 件 | |
温 度 参 数 | |||||
温度范围 | -40 | 25 | 85 | ℃ | 工作时 |
-40 | 25 | 125 | ℃ | 存储时 | |
电 压 参 数 | |||||
工作电压 | 1.8 | 3.3 | 3.6 | V | |
电 流 参 数 | |||||
发射电流 | - | <120 | - | mA | 19 dBm,868MHz |
接收电流 | - | <18 | mA | 2.4 Kbps, DSSS | |
休眠电流 | - | <2.5 | - | uA | |
射 频 参 数 | |||||
发射功率 | -43.5 | 19 | 22.9 | dBm | 1.2 kbps, DSSS, 868 MHz |
接收灵敏度 | - | -128 | - | dBm | 1.2 kbps, DSSS, 868 MHz |
MCU 参 数 | |||||
MCU | High Performance 32-bit 40 MHz ARM Cortex®-M4 with DSP instruction and floating-point unit for efficient signal processing | ||||
ADC | 12-bit 1 Msps SAR Analog to Digital Converter | ||||
ACMP | 2 × Analog Comparator | ||||
VDAC | 2 × Digital to Analog Converter | ||||
Opamp | 2 × Operational Amplifier | ||||
IDAC | Digital to Analog Current Converter | ||||
LESENSE | Low-Energy Sensor Interface | ||||
APORT | Up to 32 pins connected to analog channels shared between analog peripherals | ||||
I/O | Up to 32 General Purpose I/O pins with output state retention and asynchronous interrupts | ||||
DMA | 8 Channel DMA Controller | ||||
PRS | 12 Channel Peripheral Reflex System | ||||
TIMER | 2 × 16-bit Timer/Counter , 1 × 32-bit Timer/Counter | ||||
RTC | 32-bit Real Time Counter and Calendar | ||||
LETIMER | 16-bit Low Energy Timer for waveform generation | ||||
ULETIMER | 32-bit Ultra Low Energy Timer/Counter for periodic wake-up from any Energy Mode | ||||
WDT | 2 × Watchdog Timer with dedicated RC oscillator | ||||
UART/SPI/ SmartCard/ IrDA/I2S | 2 × Universal Synchronous/Asynchronous Receiver/Transmitter | ||||
LEUART™ | Low Energy UART • I2C interface with SMBus support and address recognition in EM3 Stop |
脚位编号 | 引脚定义 | I/O | 描 述 |
1 | PC10 | I/O | GPIO引脚 |
2 | PC11 | I/O | GPIO引脚 |
3 | PF0 | I/O | GPIO引脚 |
4 | PF1 | I/O | GPIO引脚 |
5 | PF2 | I/O | GPIO引脚 |
6 | PF3 | I/O | GPIO引脚,TCXO |
7 | RESET | I | 复位输入,低电平有效。要将外部复位源施加到该引脚,仅需在复位期间将该引脚驱动为低电平,并让内部上拉电路确保释放复位。 |
8、11、12、 14、23 | GND | - | 接电源地 |
9 | PD13 | I/O | GPIO引脚 |
10 | PD14 | I/O | GPIO引脚 |
13 | ANT | O | 接50欧负载天线 |
15 | PD15 | I/O | GPIO引脚 |
16 | PA0 | I/O | GPIO引脚 |
17 | PA1 | I/O | GPIO引脚 |
18 | PB11 | I/O | GPIO引脚 |
19 | PB12 | I/O | GPIO引脚 |
20 | PB13 | I/O | GPIO引脚,使用无线时不可使用 |
21 | PB14 | I/O | GPIO引脚 |
22 | PB15 | I/O | GPIO引脚 |
24 | VCC | - | 电源正输入(默认3.3V) |
芯片 | EFR32FG14 |
频率 | 433MHz,490MHz,868MHz,915MHz |
调制模式 | DSSS |
输出功率 | 200mW |
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