EN
  • EN
  • DE
loading
Mfr. Part No. Qty. Price

No items in the cart

View Cart
Same model may have multiple batches, images only for reference.
SI1021-B-GMR Real Image
Same model may have multiple batches, images only for reference.

SI1021-B-GMR

Part No SI1021-B-GMR
Manufacturer Silicon Labs
Catalog RF Transceiver ICs
Description IC RF TXRX+MCU ISM<1GHZ 85VFLGA  /  IC RF TxRx + MCU General ISM < 1GHz EZRadioPro 240MHz ~ 960MHz 85-VFLGA Exposed Pad
Datasheet
SI1021-B-GMR Datasheet
Sample
Rohs State rohs
ECAD Module
Need Help

Products specifications Report Issue?

Category RF/IF and RFID>RF Transceiver ICs
Mfr Silicon Labs
Package Tape & Reel (TR)
Type TxRx + MCU
RF Family/Standard General ISM < 1GHz
Protocol EZRadioPro
Modulation FSK, GFSK, OOK
Frequency 240MHz ~ 960MHz
Data Rate (Max) 256kbps
Power - Output 20dBm (Max)
Sensitivity -121dBm
Memory Size 32kB Flash, 8.5kB RAM
Serial Interfaces I2C, SPI, UART
GPIO 53
Voltage - Supply 1.8V ~ 3.8V
Current - Receiving 18.5mA
Current - Transmitting 85mA
Temperature Range - Operating -40°C ~ 85°C
Mounting SMD (SMT)
Package / Case 85-VFLGA Exposed Pad
Supplier Device Package 85-LGA (6x8)
Base Product Number SI1021
Standard Package 2,500
MSL Level 3 (168 Hours)
ECCN 5A992C
HTSUS 8542.31.0001
Win Source Part Number 1235833-SI1021-B-GMR
Ultra Librarian 3D Model Ultra Librarian SI1021-B-GMR CAD Model

Description

The SI1021-B-GMR is a RF Transceiver IC designed for use in RF/IF and RFID applications.

  • Component Type: TxRx + MCU
  • Package Type: Tape & Reel
  • Standard Package: 2,500
  • Mounting Technology: SMD (SMT)
  • Frequency Range: 240MHz ~ 960MHz
  • Modulation Types: FSK, GFSK, OOK
  • Memory Size: 32kB Flash, 8.5kB RAM
  • Serial Interfaces: I2C, SPI, UART
  • GPIO Count: 53
  • Voltage Supply: 1.8V ~ 3.8V
  • Data Rate: 256kbps
  • Power Output: Up to 20dBm
  • Sensitivity: -121dBm
  • Current Consumption (Receiving): 18.5mA
  • RF Family/Standard: General ISM < 1GHz RF family/standard

You May Also Be Interested in

Si3933 Nanjing International Group Co – Price, Stock & Datasheet
Si3933
Nanjing International Group Co
1kbps 15kHz~150kHz 125kHz 2.4V~3.6V TSSOP-16 RF Transceiver ICs RoHS
Lowest to $1.4897
Picture of DA14495-00HP2
DA14495-00HP2
Renesas Electronics America
DECT WIRELESS SOC
Need more? Email Us
EFR32FG1P131F256GM48-C0R Silicon Labs
EFR32FG1P131F256GM48-C0R
Silicon Labs
IC RF TXRX+MCU 802.15.4 48QFN
Need more? Email Us
EFR32FG28A122F1024GM68-AR Silicon Labs
EFR32FG28A122F1024GM68-AR
Silicon Labs
IC RF TXRX+MCU BLE 68QFN
Need more? Email Us
MC13234CHTR NXP USA Inc.
MC13234CHTR
NXP / Nexperia
IC RF TXRX+MCU 802.15.4 48MAPLGA
Need more? Email Us
EFR32MG13P732F512IM48-D Silicon Labs
EFR32MG13P732F512IM48-D
Silicon Labs
IC RF TXRX+MCU 802.15.4 48QFN
Need more? Email Us
STM32WLE5JCI6TR STMicroelectronics
STM32WLE5JCI6TR
STMicroelectronics
IC RF TXRX+MCU ISM<1GHZ 73UFBGA
Need more? Email Us
EFR32MG13P732F512IM32-D Silicon Labs
EFR32MG13P732F512IM32-D
Silicon Labs
IC RF TXRX+MCU 802.15.4 32RQFN
Need more? Email Us
EFR32MG1P232F256GM32-C0R Silicon Labs
EFR32MG1P232F256GM32-C0R
Silicon Labs
IC RF TXRX+MCU 802.15.4 32QFN
Need more? Email Us

Top Sellers

FT230XS-R real image4301
FT230XS-R
FTDI, Future Technology Devices International Ltd
IC USB SERIAL BASIC UART 16SSOP
Lowest to $6.1775
FT4232HL real image4446
FT4232HL
FTDI, Future Technology Devices International Ltd
IC USB HS QUAD UART/SYNC 64-LQFP
Lowest to $13.3053
TPSM63606RDLR Real Image
TPSM63606RDLR
Texas Instruments
DC DC CONVERTER 1-16V / Non-Isolated PoL Module DC DC Converter 1 Output 1 ~ 16V 6A 3V - 36V Input
Lowest to $13.4125
BM04B-GHS-TBT(LF)(SN)(N) label picture
BM04B-GHS-TBT(LF)(SN)(N)
JST Sales America Inc.
CONN HEADER GH TOP 4POS 1.25MM
Lowest to $0.1782
PI3740-00-LGIZ real image
PI3740-00-LGIZ
Vicor Corporation
DC DC CONVERTER 10-50V / 8V – 60VIN , 10V – 50VOUT , 50 – 140W Cool-Power ZVS Buck-Boost Regulator
Lowest to $41.3948
BMM150 label picture
BMM150
Bosch Sensortec
SENSOR FLIPCORE/HALL SPI 12WLCSP / Geomagnetic Sensor
Lowest to $0.7841
BAS516 Real Image
BAS516
Nexperia USA Inc.
DIODE GEN PURP 100V 250MA SOD523
Lowest to $0.0357
FT232RL-REEL Real Image
FT232RL-REEL
FTDI, Future Technology Devices International Ltd
IC USB FS SERIAL UART 28-SSOP
Lowest to $5.2271
EC2-5NU real image3736
EC2-5NU
Kemet
RELAY GEN PURPOSE DPDT 2A 5V
Lowest to $0.9677
EPM3128ATC100-10N real image
EPM3128ATC100-10N
Altera
IC CPLD 128MC 10NS 100TQFP
Lowest to $3.3015
AR8033-AL1A real image2016
AR8033-AL1A
Atheros
Ethernet TXRX Single Chip 1-Port 3.3V 10Mbps/100Mbps/1000Mbps 48-Pin QFN EP Tray
Lowest to $2.6071
BM06B-GHS-TBT(LF)(SN)(N) Real Image2
BM06B-GHS-TBT(LF)(SN)(N)
JST Sales America Inc.
CONN HEADER SMD 6POS 1.25MM
Lowest to $0.4985
ICM-42605 real image24295
ICM-42605
TDK InvenSense
IMU ACCEL/GYRO/TEMP I2C/SPI LGA
Lowest to $10.4542
LM5069MM-2/NOPB real image1604
LM5069MM-2/NOPB
Texas Instruments
IC CTRLR HOT SWAP 48V 10-MSOP
Lowest to $4.1579
CY7C68013A-128AXC Real Image
CY7C68013A-128AXC
Cypress Semiconductor Corp
IC MCU USB PERIPH HI SPD 128LQFP
Availability: Check Availability & Quote
Notify Me When Available

Shipping Information

Shipped from HK warehouse
Expected Shipping Date Get an estimate

Contact Us

*
*
*

FRAUD PREVENTION REMINDERS

Recently, We have discovered that criminals falsely claimed to be WIN SOURCE to commit fraud. Please note that the only official website & email suffix are win-source.group, win-source.net, winsourcectl.com and winsourceelec.com

More details about fraud prevention
About Us
Customer Service
Solutions
Copyright © 2026 WIN SOURCE. All rights reserved.
For detailed contact information and office addresses in our key locations, including Irvine, Munich, Toronto, Singapore, Seoul, Bangalore, Bologna, Yamanashi, Hong Kong, and Mainland China, please visit our website.
Trust Guard Security Scanned
RFQ RFQ RFQ BOM BOM BOM API API API Sell Sell Sell your Excess