EFR32FG1P133F256GM48 Flex Gecko Proprietary Sub-GHz 2.4 GHz Wireless Protocol SoC

Flash (kB)

RAM (kB)

The EFR32FG1P133F256GM48 EFR32 Flex Gecko is a Wireless SoC targeted at proprietary wireless applications for secure, connected, wireless devices. The device includes a ARM Cortex-M4 based microcontroller (MCU) and provides a maximum output power of 20 dBm. With a receive sensitivity of -126.4 (600 bps, GFSK, 915 MHz); -99 (250 kbps, DSSS-OQPSK , 2.4 GHz) dBm (2.4 kbps, 2 GFSK 0.1% BER) the EFR32FG1P133F256GM48 supports a full DSP instruction set and floating point unit to speed computation. Built with low-power Gecko Technology which includes innovative low energy techniques, fast wake-up times and energy saving modes the EFR32FG1P133F256GM48 is ideal for energy sensitive applications. In addition, this device includes 256 kB Flash, 32 kB RAM, 31 GPIO Pins, 7 x 16-bit Timers and multiple communication interfaces.

Similar Devices: EFR32FG1P133F128GM48 EFR32FG1P133F256GM48 EFR32FG1P133F64GM48

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Specifications Summary

MCU Core: ARM Cortex-M4

Flash (kB): 256

RAM (kB): 32

2.4-GHz Capable: Yes

Sub-GHz Capable: Yes

Output Power Max. (dBm): 20

Output Power Min. (dBm): -30

Receive Sensitivity (dBm): -126.4 (600 bps, GFSK, 915 MHz); -99 (250 kbps, DSSS-OQPSK , 2.4 GHz)

RX Current: 8.1

I²S: 1

SPI: 2

I²C: 1



GPIO Pins: 31

AES-128: Yes

AES-256: Yes

ECC: Yes

SHA-1: Yes

SHA-2: Yes

RSA-2048: No

Package Type: QFN48

Package Size (mm): 7x7

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