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Silicon Labs SI1021-B-GM

IC RF TXRX+MCU ISM<1GHZ 85LGA

Answer first: this page is a purchasing reference for the exact part number SI1021-B-GM 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: SI1021-B-GM Package: 85-VFLGA Exposed Pad RFQ verification required

Key Parameters

Part NumberSI1021-B-GM
ManufacturerSilicon Labs
CategoryRF Transceiver ICs
package85-VFLGA Exposed Pad
series-
packagingTray
product statusActive
param 1Not Verified
param 2TxRx + MCU
param 3General ISM < 1GHz
param 4EZRadioPro
param 5FSK, GFSK, OOK
param 6240MHz ~ 960MHz
param 7256kbps
param 820dBm (Max)
param 9-121dBm
param 1064kB Flash, 8.5kB RAM
param 11I2C, SPI, UART
param 1253
param 131.8V ~ 3.8V
param 1418.5mA
param 1585mA
param 16-40°C ~ 85°C
param 17-
param 18-
param 19Surface Mount
param 2085-LGA (6x8)

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

How to Verify SI1021-B-GM 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 SI1021-B-GM, 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.