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Silicon Labs EFR32MG21B010F768IM32-B

IC RF TXRX+MCU 802.15.4 32QFN

Answer first: this page is a purchasing reference for the exact part number EFR32MG21B010F768IM32-B from Silicon Labs. Use it to start datasheet, package, manufacturer and RFQ verification; do not treat page text as a live stock, price or lead-time promise.

Manufacturer: Silicon Labs Part number: EFR32MG21B010F768IM32-B Package: 32-VFQFN Exposed Pad RFQ verification required

Key Parameters

Part NumberEFR32MG21B010F768IM32-B
ManufacturerSilicon Labs
CategoryRF Transceiver ICs
package32-VFQFN Exposed Pad
seriesMighty Gecko
packagingTray
product statusActive
param 1Not Verified
param 2TxRx + MCU
param 3802.15.4, Bluetooth
param 4Bluetooth v5.1, Thread, Zigbee®
param 5DSSS, GFSK, O-QPSK
param 62.4GHz ~ 2.4835GHz
param 72Mbps
param 810dBm
param 9-104.9dBm
param 10768kB Flash, 64kB RAM
param 11I2C, I2S, SPI, IrDA, UART, USART
param 1220
param 131.71V ~ 3.8V
param 148.8mA ~ 9.8mA
param 159.3mA ~ 185mA
param 16-40°C ~ 125°C (TA)
param 17-
param 18-
param 19Surface Mount
param 2032-QFN (4x4)

Parameters are provided for purchasing review. Confirm package, suffix, lifecycle status, datasheet revision and approved substitutes before ordering.

How to Verify EFR32MG21B010F768IM32-B Before Ordering

Datasheet and parameter checks

  • Confirm the full manufacturer part number, not only a shortened search keyword.
  • Compare package, pinout, dimensions, voltage or rating fields, temperature range and compliance wording against the released BOM.
  • Use the manufacturer datasheet or drawing for electrical and mechanical limits before approving a substitute.

RFQ fields SENICO needs

  • Send exact part number, manufacturer, quantity, target delivery date, destination and required packaging.
  • State whether alternates are allowed, and list any date-code, certificate, traceability or customer AVL requirement.
  • Keep exact stock, factory lead time and proposed alternatives in separate quote lanes.

For EFR32MG21B010F768IM32-B, SENICO recommends checking manufacturer marking, package, date code, requested quantity, approved vendor requirements and replacement risk before issuing a purchase order. If a supplier suggests an equivalent, record the changed fields and approval owner before comparing price.

We do not treat displayed data as a real-time stock or price commitment. The RFQ reply is the verified commercial reference.

Related buying guides: stock and lead-time verification, equivalent IC comparison, and BOM RFQ preparation.