Produkte > Integrierte Schaltungen (ICs) > Kommunikation & Netzwerk-ICs > BLE121LR-A-M256K

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Bluetooth v4.0 (BLE) SMART SOC 36-Pin T/R

Hersteller : Silicon Laboratories Inc
Verpackung/Behälter : MODULE
Produkt der Kategorien : RF Transceiver Modules
Datasheet: BLE121LR-A-M256K Datasheet (PDF)
RoHs Status: Lead free / RoHS Compliant
Lagerbestand: 500


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BLE121LR-A-M256K Beschreibung


Bluetooth v4.0 (BLE) SMART SOC 36-Pin
Bluetooth / 802.15.1 Modules BT Smart Long Range Module 256k, Int Ant



  • Bluetooth Smart (low energy) support
  • L2CAP, ATT, GATT, GAP and Security Manager
  • Bluetooth Smart profiles
  • Client and master mode 
  • Up to 8 connections in master mode
  • 100 kbps+ throughput
  • Over-the-Air firmware upgrade
  • UART host interface
  • SPI, I2C, PWM, UART, GPIO peripheral interfaces
  • 12-bit ADCs
  • Temperature range: -40°C to +85°C
  • Dimensions: 15.75 mm x 9.15 mm x 1.9 mm
  • Power supply: 2.0 - 3.6 V
  • Bluetooth 4.0 low energy radio
  • Transmit power: +0 dBm
  • Receiver sensitivity: -93 dBm
  • Integrated antenna
  • TX peak current: 18.2 mA
  • TX peak current: 18.2 mA (with DC/DC)
  • RX peak current: 14.3 mA
  • Sleep mode current: 0.4uA
  • 8051 microcontroller
  • 8 kB RAM
  • 128 kB or 256 kB Flash
  • Embedded Bluegiga Bluetooth Smart Stack
  • BGAPI™ host protocol
  • Bluegiga BGScript™ programming for standalone applications
  • Standalone applications can be created with ANSI C and IAR Embedded Workbench SDK
  • Bluegiga Profile Toolkit™ for developing Bluetooth Smart profiles
  • Bluetooth
  • CE
  • FCC
  • IC
  • Japan
  • South Korea

BLE121LR-A-M256K Block Diagram
(Bild: Diagram)

Technische Parameter

  • Antenna Type
  • Integrated, Chip
  • Current Receiving
  • 28mA ~ 33mA
  • Current Transmitting
  • 25mA ~ 39mA
  • Data Rate
  • 2Mbps
  • Frequency
  • 2.4GHz
  • Memory Size
  • 256kB Flash, 8kB SRAM
  • Mounting Type
  • Surface Mount
  • Operating Temperature
  • -40掳C ~ 85掳C
  • Package / Case
  • Module
  • Packaging
  • Tape & Reel (TR)
  • Part Status
  • Active
  • Power Output
  • 8dBm
  • Protocol
  • Bluetooth v4.0
  • RF Family/Standard
  • Bluetooth
  • Sensitivity
  • -98dBm
  • Serial Interfaces
  • I虏C, SPI, UART
  • Voltage Supply
  • 2 V ~ 3.6 V

BLE121LR-A-M256K Datasheet

BLE121LR-A-M256K Verwandte besondere

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Fracht Mehr
Estimated Delivery Time: Sep 28 - Oct 03 days (choose Expedited at checkout).

Fracht & Zahlung


  • Liefer-Type
  • Schiff Fee
  • Lead Time
  • $20.00-$40.00 (0.50 KG)
  • 2-5 days
  • $20.00-$40.00 (0.50 KG)
  • 3-7 days
  • $20.00-$45.00 (0.50 KG)
  • 2-5 days
  • $25.00-$65.00 (0.50 KG)
  • 2-5 days
  • $25.00-$45.00 (0.50 KG)
  • 5-14 days
  • $2.00-$3.00 (0.10 KG)
  • 7-30 days

Processing Time:Shipping fee depend on different zone and country.


  • Zahlungsbedingungen
  • Hand Fee
  • Payment Site
  • charge US$30.00 banking fee.
  • charge 4.0% service fee.
  • charge 3.5% service fee.
  • charge US$0.00 banking fee.
  • charge US$0.00 banking fee.

Wir bieten qualitativ hochwertige Produkte, aufmerksamen Service und nach dem Verkauf Garantie

  • Wir haben reiche Produkte, können Ihre verschiedenen Bedürfnisse erfüllen.

    Wir haben reiche Produkte, können Ihre verschiedenen Bedürfnisse erfüllen.

  • Mindestbestellmenge beginnt 1pcs.

    Mindestbestellmenge beginnt 1pcs.

  • Niedrigsten Transportgebühr beginnt bei US $ 2,00.

    Niedrigsten Transportgebühr beginnt bei US $ 2,00.

  • 90 Tage Qualitätsgarantie für alle Produkte.

    90 Tage Qualitätsgarantie für alle Produkte.


  • Step1:Product

    Step1: Products

  • Step2:Vacuum packaging

    Step2: Vacuum Packaging

  • Step3:Anti-static bag

    Step3: Anti-Static Bag

  • Step4:Individual packaging

    Step4: Individual Packaging

  • Step5:Packaging boxes

    Step5: Packaging Boxes

  • Step6:bar-code shipping tag

    Step6: Bar-Code Shipping Tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Jotrin ESD packing


1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that BLE121LR-A-M256K is the original manufacturer or agent of SILICON LABS?
We have a professional business development department to strictly test and verify the qualifications of SILICON LABS original manufacturers and agents. All SILICON LABS suppliers must pass the qualification review before they can publish their BLE121LR-A-M256K devices; we pay more attention to the channels and quality of BLE121LR-A-M256K products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of BLE121LR-A-M256K chips? Including SILICON LABS original factory information, RF Transceiver Modules application, BLE121LR-A-M256K pictures?
You can use Jotrin's intelligent search engine, or filter by wireless ; bluetooth category, or find it through Silicon Laboratories Inc Information page.
Q: Are the SILICON LABS's BLE121LR-A-M256K price and stock displayed on the platform accurate?
The SILICON LABS's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for BLE121LR-A-M256K, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
Q: What forms of payment can I use in Jotrin?
TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of BLE121LR-A-M256K?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the BLE121LRAM256K we delivered, we will accept the replacement or return of the BLE121LR-A-M256K only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of BLE121LR-A-M256K.
(3)The BLE121LR-A-M256K is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as BLE121LR-A-M256K datasheet pdf, BLE pin diagram?
Need any After-Sales service, please feel free contact us:

Silicon Laboratories Inc

Silicon Labs, Inc. is a leading provider of networking, software and system solutions for the Internet of Things, Internet infrastructure, industrial control, consumer electronics and automotive markets. We solve the toughest problems in the electronics industry, providing customers with significant...
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