ATSAMB11G18A-MU-Y Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
ATSAMB11G18A-MU-Y is an ultra-low-power Bluetooth Low Energy 4.1 SoC with an integrated ARM Cortex-M0 core, 256 KB Flash, and 2.3 V to 4.3 V supply in a compact 48-pin QFN package from Microchip. Available from stock worldwide.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 49
- Lifecycle
- OBSOLETE
- Datasheet
- ATSAMB11G18A-MU-Y Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of ATSAMB11G18A-MU-Y?
- Bluetooth Low Energy 4.1 radio with integrated antenna balun enabling single-chip wireless connectivity
- ARM Cortex-M0 application processor at up to 26 MHz with 256 KB Flash and 64 KB RAM on-chip
- Ultra-low-power sleep current enabling coin-cell battery life of months to years in IoT sensor nodes
- Operating supply range of 2.3 V to 4.3 V supporting direct CR2032 and Li-ion battery operation
What is ATSAMB11G18A-MU-Y used for?
The ATSAMB11G18A-MU-Y is designed for compact, battery-powered IoT devices such as BLE beacons, fitness wearables, and wireless sensor tags requiring multi-month autonomy on a 3 V coin cell. Its integrated Cortex-M0 application processor and BLE 4.1 stack simplify development of proximity detection, asset tracking, and health monitoring accessories. The 48-pin QFN footprint keeps PCB area under 7 mm x 7 mm, making it ideal for space-constrained wearables and smart packaging.
What are the specifications of ATSAMB11G18A-MU-Y?
| Pbfree Code | Yes |
| YTEOL | 0 |
| JESD-30 Code | S-XQCC-N48 |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | LCC48,.24SQ,16 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, VERY THIN PROFILE |
| Supply Voltage-Max | 4.3V |
| Supply Voltage-Min | 2.3V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.4mm |
| Terminal Position | QUAD |
| uPs/uCs/Peripheral ICs Type | RFSoC |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | 5A992.C |
| HTS Code | 8542.31.00.01 |
Where can I find the ATSAMB11G18A-MU-Y datasheet?
ATSAMB11G18A-MU-Y Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for ATSAMB11G18A-MU-Y?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the supply voltage range of ATSAMB11G18A-MU-Y and can it run directly from a CR2032 cell?
The ATSAMB11G18A-MU-Y operates from 2.3 V to 4.3 V, which fully covers the discharge curve of a 3 V CR2032 coin cell. This allows direct battery operation without a regulator, and the ultra-low-power sleep modes help maintain operation across hundreds of mAh of battery capacity over extended deployment periods.
How much processing and storage resources does the integrated Cortex-M0 core provide for application firmware?
The ATSAMB11G18A-MU-Y integrates an ARM Cortex-M0 core running at up to 26 MHz with 256 KB of Flash for application code and 64 KB of SRAM. This is sufficient to run BLE profiles, sensor drivers, and lightweight application logic entirely on-chip without an external MCU, reducing BOM cost and PCB area.
Which BLE version does ATSAMB11G18A-MU-Y support and how does that compare to BLE 5.0 alternatives?
The ATSAMB11G18A-MU-Y implements Bluetooth Low Energy 4.1, which supports connections and advertising roles fully compatible with smartphones and tablets. Compared to BLE 5.0 parts, it lacks the 2x data rate and extended advertising features, but offers a proven, small 48-pin QFN footprint at 2.3 V minimum for cost-sensitive wearable designs.
What package size does ATSAMB11G18A-MU-Y use and how does it affect PCB layout for wearable products?
The ATSAMB11G18A-MU-Y comes in a 7 mm x 7 mm 48-pin QFN package with a 0.5 mm pitch. Its exposed pad and ground ring facilitate low-inductance RF grounding, while the compact footprint allows BLE SoC integration in wristband or patch form factors where total board area is typically under 30 mm x 20 mm.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
More from Microchip
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit