Microchip Technology ATWINC1510B-MU-Y

Overview

ATWINC1510B-MU-Y from Microchip Technology is a fully integrated IEEE 802.11 b/g/n Wi-Fi SoC with 8 Mb on-chip Flash, 26 MHz crystal oscillator requirement, QFN-40 package, and SPI host interface - designed for low-power embedded IoT endpoints requiring secure wireless connectivity in industrial and consumer applications.

For engineers reviewing the ATWINC1510B-MU-Y datasheet, ATWINC1510B-MU-Y pinout, ATWINC1510B-MU-Y application, or ATWINC1510B-MU-Y equivalent, key selection criteria include integrated TLS offload, <4 µA power-down current, MAC+PHY+PA+LNA+PMU integration, -40°C to +85°C operating range, and firmware OTA upgrade capability.

Technical Context

The ATWINC1510B-MU-Y integrates a Cortus APS3 32-bit RISC processor executing MAC/PHY control, TLS stack, and TCP/IP protocols - enabling full network stack offload from the host MCU. Its hardware accelerators handle A-MSDU/A-MPDU aggregation, block ACK, IP checksum, and AES-CCMP encryption.

It operates in the 2.4 GHz ISM band with single-stream 1×1 MIMO, delivering up to 72 Mbps PHY rate. The RF subsystem includes integrated PA, LNA, T/R switch, and VCO, with calibrated eFuse storage for TX power, crystal offset, and MAC address - all managed via factory-programmed 768-bit OTP memory.

Key Specifications

Pinout & Package

ATWINC1510B-MU-Y is housed in a 5 mm × 5 mm, 0.4 mm pitch, 40-pin QFN package with exposed thermal paddle (PADDLE VSS) requiring PCB ground connection. Pin functions are validated per Microchip DS70005374B.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Wi-Fi SoC applications.

Compared with ESP32-WROOM-32 and ATWILC3000-MR210PB, the ATWINC1510B-MU-Y delivers certified, self-contained Wi-Fi + TLS + OTA in a single QFN-40 package - reducing design validation scope, PCB area, and supply chain complexity for safety-critical and battery-constrained deployments.

Availability

ATWINC1510B-MU-Y is available at Aetrix Electronics and suitable for smart home sensor nodes, industrial gateway edge modules, medical wearable monitors, connected appliance control boards, and battery-powered telemetry endpoints requiring stable component supply and long-term lifecycle assurance.

Supply support for ATWINC1510B-MU-Y includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Microchip Technology Inc. is a U.S.-based semiconductor manufacturer specializing in microcontrollers, analog devices, and connectivity solutions - with ISO 9001-certified operations and global distribution.

The ATWINC1510B-MU-Y belongs to Microchip's WINC family of Wi-Fi network controllers, engineered specifically for ultra-low-power, certified, and firmware-complete wireless connectivity in resource-constrained embedded systems.

FAQ

What is the flash memory capacity of the ATWINC1510B-MU-Y?

The ATWINC1510B-MU-Y integrates 8 Mb of on-chip Flash memory, which stores the complete Wi-Fi firmware, network stack, and application binaries. This eliminates the need for external Flash memory and enables robust over-the-air (OTA) firmware updates with dual-bank support - a key differentiator from the 4 Mb ATWINC1500B variant. The ATWINC1510B-MU-Y uses this larger Flash to host enhanced security features including EAP-TLS and full TLS 1.2 implementation.

Does the ATWINC1510B-MU-Y support enterprise Wi-Fi security protocols?

Yes, the ATWINC1510B-MU-Y supports WPA/WPA2-Enterprise security starting with firmware release 19.6.1, including EAP-TLS, EAP-PEAPv0/1 with TLS, EAP-TTLSv0 with MSCHAPv2, and EAP-PEAPv0/1 with MSCHAPv2. These protocols are executed in hardware-accelerated mode using the on-chip crypto engine, ensuring low-latency authentication and compliance with IEEE 802.11x standards - critical for deployment in corporate and healthcare networks where the ATWINC1510B-MU-Y serves as the trusted wireless endpoint.

What is the minimum external component count required to operate the ATWINC1510B-MU-Y?

The ATWINC1510B-MU-Y requires only a 26 MHz crystal oscillator, three decoupling capacitors (10 µF + 0.01 µF on VREG_BUCK, 100 nF on VDDIO), and a 1 MΩ pull-up on SPI_CFG to enable SPI mode - no external PA, LNA, SAW filter, or DC/DC controller is needed. Its fully integrated RF front-end, PMU, and power management unit make the ATWINC1510B-MU-Y a true single-chip solution, reducing BOM count by ≥12 components versus discrete Wi-Fi designs.

Can the ATWINC1510B-MU-Y operate in both station and access point modes simultaneously?

Yes, the ATWINC1510B-MU-Y supports concurrent Station (STA) and Soft-Access Point (Soft-AP) operation - enabling hybrid network topologies such as local device provisioning via captive portal while maintaining upstream cloud connectivity. This dual-role capability is enabled by the on-chip Cortus APS3 processor and dedicated MAC hardware, and is fully supported in Microchip's official firmware without host MCU intervention - a core feature distinguishing the ATWINC1510B-MU-Y from basic Wi-Fi transceivers.

What power-saving modes are available on the ATWINC1510B-MU-Y and their typical current draw?

The ATWINC1510B-MU-Y offers three key low-power states: Power-Down mode (<4 µA at 3.3V I/O), Doze mode (380 µA with chip settings preserved for beacon monitoring), and Sleep mode with on-chip 32 kHz oscillator. Wake-up from Doze to active state takes <1 ms via GPIO or SPI transaction. These modes are hardware-managed and firmware-configurable - allowing the ATWINC1510B-MU-Y to sustain multi-year battery life in intermittent transmission applications like environmental sensors.