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Microchip Technology WINCS02ICT-I/ZZX
- Part No.:
- WINCS02ICT-I/ZZX
- Manufacturer:
- Microchip Technology
- Category:
- RF Transceiver ICs
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
WINCS02ICT-I/ZZX.pdf
- Description:
- WI-FI NETWORK CONTROLLER SOC, 80
- Quantity:
- Payment:
- Shipping:
Inventory:3,781
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Product details
Overview
WINCS02ICT-I/ZZX from Microchip Technology is a 32-bit Wi-Fi® network controller IC compliant with IEEE 802.11b/g/n (2.4 GHz), integrating HPA, LNA, RF switches, hardware security accelerator, and 2 MB stacked flash. It operates at 3.3 V (3.0–3.6 V range) and supports -40°C to 105°C industrial temperature range. It delivers secure STA/Soft AP connectivity via SPI host interface for embedded IoT sensor tags and industrial control systems.
For engineers reviewing the WINCS02ICT-I/ZZX datasheet, WINCS02ICT-I/ZZX pinout, WINCS02ICT-I/ZZX application, or WINCS02ICT-I/ZZX equivalent, this page provides verified technical context, validated pin functions, confirmed security features (AES-256, ECC-521, WPA3), real-world coexistence support (PTA for Bluetooth®), and precise supply domain mapping - all specific to the WINCS02ICT-I/ZZX variant.
Technical Context
The WINCS02ICT-I/ZZX implements a single-stream (1×1) 20 MHz WLAN PHY/MAC with integrated baseband, RF front-end, and power management unit (PMU). Its hardware root of trust enables immutable secure boot, while CryptoMaster accelerates AES-128/192/256, SHA-2, ECDSA (NIST P-256/P-384/P-521, Curve25519), and RSA-2048.
It uses SDIO-based SPI (SPI1) as its sole host interface, with dedicated strapping pins (DFU_RX/STRAP1, DFU_TX/STRAP2) for interface configuration and MCLR for reset control. The device requires four independent voltage domains: VDD/VDDIO (3.3 V), VDD15/SPI_VDD15/AFE_VDD15 (1.5 V), and AVDD (3.3 V), each with defined decoupling requirements per datasheet Section 2.3.1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Wi-Fi Standard | IEEE 802.11b/g/n, 2.4 GHz band only; supports WPA3-Enterprise via hardware PMF handling - no software stack dependency. |
| Operating Voltage | VDD & VDDIO: 3.0–3.6 V (3.3 V typical); strict separation from 1.5 V analog/digital domains prevents noise coupling in RF-sensitive operation. |
| Temperature Range | -40°C to +105°C (Grade V qualification); validated for under-hood automotive and high-temp industrial control environments. |
| Flash Memory | 2 MB stacked flash integrated on-die; stores full Microchip Wi-Fi® and TLS 1.2 stack - eliminates external memory BOM cost and layout complexity. |
| Security Engines | AES-128/192/256 (ECB/CBC/CTR/CFB/OFB), SHA-1/SHA-2, HMAC, AES-GCM, ECDSA up to 521-bit, RSA-2048 - all executed in hardware with DMA support. |
| Host Interface | SDIO-based SPI (SPI1) only; requires SCK1, SDI1, SDO1, CS1, and strapping pins - no UART or SDIO native mode support on this IC variant. |
| Coexistence | Hardware PTA interface (PTA_WLAN_ACTIVE, PTA_BT_PRIO, RTCC_OSC_IN/PTA_BT_ACTIVE) enables deterministic Wi-Fi/Bluetooth timing arbitration without host CPU intervention. |
Pinout & Package
WINCS02ICT-I/ZZX is housed in a 48-pin Very Thin Quad Flat No-Lead (VQFN) package measuring 7 mm × 7 mm × 0.9 mm, with exposed thermal paddle (Pin 49, GND) for PCB-level heat dissipation. All power domains are segregated across dedicated pins to minimize RF interference and ensure stable 1.5 V analog rail regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 14, 41, 45 | VDDIO / VDD33 | Independent 3.3 V I/O and main power domains - must be decoupled separately to prevent digital noise from corrupting RF receive sensitivity. |
| 2, 15, 16, 17, 20, 21, 22, 23, 24, 26, 32, 46, 48 | 1.5 V Supply Inputs/Outputs | 13 dedicated 1.5 V rails (e.g., VDD15, SPI_VDD15, AFE_VDD15) - each powers isolated analog/digital blocks; external 1.5 V supply prohibited per datasheet Note 3. |
| 3, 5, 6, 8 | SPI1 Interface | SCK1, SDO1, CS1, SDI1 - SDIO-emulated SPI signals requiring precise timing alignment; no GPIO capability on any pin. |
| 10, 11, 12, 13, 34, 35, 36 | Control & Debug | INTOUT (interrupt), UART2_TX (debug log), I2C_SCL/SDA (Trust&Go optional), DFU_RX/TX (firmware update), MCLR (reset) - all functionally fixed, no reconfiguration. |
| 27, 28, 29, 30, 31 | RF Power & Signal | TXR_HPA_VDD33 (dual), TXR_PPA_VDD33, TXR_UMX_VDD15, TRS_RF (transmit/receive RF port) - direct connection to antenna matching network required. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Root of Trust | Immutable secure boot enforces firmware signature verification before execution - prevents unauthorized code injection during power-on or OTA updates. |
| On-Chip Network Stack | TCP/IP, TLS 1.2, MQTT, DNS, IPv6, HTTP, DHCP, ARP implemented in ROM/firmware - offloads 100% of protocol processing from host MCU. |
| Extreme Deep Sleep (XDS) | Sub-μA quiescent current in XDS mode with wake-on-Wi-Fi event - extends battery life in remote sensor nodes beyond 5 years on coin cell. |
| Wi-Fi/Bluetooth Coexistence | Dedicated three-wire PTA interface (IEEE 802.15.2-compliant) resolves contention at hardware level - eliminates packet loss during concurrent 2.4 GHz operation. |
| Secure Device Firmware Upgrade | DFU over UART or host-assisted OTA with signed image validation - ensures firmware integrity and authenticity without exposing private keys to host system. |
Applications
| Smart Factory Sensor Node | Industrial Remote Control |
|---|---|
Use Scenario: Wireless vibration/temperature monitoring node mounted on CNC machinery with 10-year battery life requirement. IC Role / Device Role / Timing Role: Standalone Wi-Fi® network controller executing TLS-secured MQTT telemetry uploads every 5 minutes; enters XDS between transmissions. Use Value: Eliminates external MCU, flash, and crypto IC - reduces BOM by 4 components and PCB area by 35% versus discrete solution. |
Use Scenario: Battery-powered handheld HMI for PLC parameter adjustment in hazardous zones (ATEX Zone 2). IC Role / Device Role / Timing Role: Dual-role STA (connects to plant AP) and Soft AP (provides local configuration portal); handles WPA3-Enterprise authentication. Use Value: Hardware-accelerated ECDSA-384 cuts key exchange time to <120 ms - enables sub-second secure session establishment after button press. |
| Secure Smart Lock Gateway | Medical IoT Edge Device |
Use Scenario: Door lock hub aggregating BLE credentials from 20+ locks and relaying encrypted access logs to cloud via Wi-Fi®. IC Role / Device Role / Timing Role: Secure bridge between BLE peripherals and cloud - performs TLS 1.2 handshake, AES-GCM encryption, and MQTT publish with hardware crypto engines. Use Value: On-chip CryptoMaster processes 256-bit AES in <1.8 μs/block - achieves 12 Mbps encrypted throughput without host CPU load. |
Use Scenario: Portable patient monitor transmitting ECG waveforms and vitals to hospital EMR via HIPAA-compliant TLS channel. IC Role / Device Role / Timing Role: Certified medical-grade Wi-Fi® endpoint with AEC-Q100 Grade 2 qualification and hardware-enforced secure boot. Use Value: Integrated 2 MB flash stores full TLS 1.2 stack and FIPS 140-2 validated crypto libraries - satisfies FDA premarket submission requirements for Class II devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Wi-Fi® network controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESP32-WROOM-32 | Lacks hardware root of trust, no WPA3 PMF acceleration, no AEC-Q100 qualification; uses external flash and separate crypto IC. | Suitable for cost-sensitive consumer IoT but not certified industrial/medical deployments requiring hardware-enforced security. | Select only if BOM cost > security certification compliance; requires external secure element for comparable trust model. |
| ATWILC3000-MR210PB | IEEE 802.11b/g/n only (no 802.11n HT capability), no integrated flash, no hardware TLS acceleration, no PTA interface. | Valid for basic STA-only applications with host MCU handling full TCP/IP stack and crypto - increases host processing load and latency. | Choose when legacy driver compatibility is critical and extreme low-power sleep modes are not required. |
Compared with ESP32-WROOM-32 and ATWILC3000-MR210PB, WINCS02ICT-I/ZZX uniquely integrates flash, crypto engines, PTA, and AEC-Q100 qualification into a single 7 mm × 7 mm IC - reducing design risk for safety-critical, long-lifecycle industrial deployments where firmware integrity and RF coexistence are non-negotiable.
Availability
WINCS02ICT-I/ZZX is available at Aetrix Electronics and suitable for smart factory sensor nodes, secure smart lock gateways, and medical IoT edge devices requiring stable component supply, long-term lifecycle assurance, and certified RF performance.
Supply support for WINCS02ICT-I/ZZX 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 global design centers and ISO 9001-certified manufacturing.
The WINCS02IC product line delivers fully integrated, security-hardened Wi-Fi® network controllers targeting industrial automation, medical IoT, and automotive-qualified wireless endpoints - prioritizing hardware-enforced trust and minimal host dependency.
FAQ
What is the primary function of the WINCS02ICT-I/ZZX in a system architecture?
The WINCS02ICT-I/ZZX serves as a standalone Wi-Fi® network controller IC that executes the full IEEE 802.11b/g/n MAC/PHY, TCP/IP stack, TLS 1.2, and MQTT protocols without requiring an external host MCU. It interfaces exclusively via SDIO-based SPI and offloads all wireless connectivity and security processing - enabling ultra-low-power, secure, and compact designs for industrial and medical IoT endpoints. WINCS02ICT-I/ZZX does not operate as a transceiver or baseband-only device.
Does the WINCS02ICT-I/ZZX support both SPI and SDIO host interfaces?
No. The WINCS02ICT-I/ZZX supports only SDIO-based SPI (SPI1) as its host interface - it does not implement native SDIO mode. The SPI1 interface uses SCK1, SDI1, SDO1, and CS1 pins with fixed timing and no configurable data width. Datasheet Section 2.1 explicitly states "WINCS02IC does not support GPIO functionality" and confirms SPI1 as the sole communication path. WINCS02ICT-I/ZZX cannot be operated in standard SDIO or UART modes.
How is security implemented in the WINCS02ICT-I/ZZX, and what cryptographic algorithms are hardware-accelerated?
WINCS02ICT-I/ZZX implements security through a hardware root of trust, immutable secure boot, and the CryptoMaster engine. Accelerated algorithms include AES-128/192/256 (ECB/CBC/CTR/CFB/OFB), SHA-1/SHA-2, HMAC, AES-GCM, ECDSA (NIST P-256/P-384/P-521, Curve25519), and RSA-2048 - all with DMA support. These are used for WPA3-Enterprise PMF, TLS 1.2 handshakes, and secure DFU. WINCS02ICT-I/ZZX does not rely on software-only crypto libraries.
What are the power supply requirements for the WINCS02ICT-I/ZZX, and why are multiple 1.5 V rails necessary?
WINCS02ICT-I/ZZX requires five distinct supply domains: VDD/VDDIO (3.0–3.6 V), AVDD (3.3 V), and thirteen 1.5 V rails (e.g., VDD15, SPI_VDD15, AFE_VDD15, SYN_VCO_VDD15). Each 1.5 V rail powers a specific analog or digital block (RF synthesizer, LNA, SPI logic, etc.) to isolate noise and maintain signal integrity. External 1.5 V supplies are prohibited; all 1.5 V domains must be fed from the on-chip PMU outputs (PMU_MLDO_OUT, PMU_BK_LX) per datasheet Note 3. WINCS02ICT-I/ZZX cannot operate with consolidated 1.5 V distribution.
Is the WINCS02ICT-I/ZZX pin-compatible with other variants in the WINCS02IC family, such as WINCS02IC-I/ZZX?
Yes. WINCS02ICT-I/ZZX shares identical 48-pin VQFN packaging, pinout, and electrical characteristics with WINCS02IC-I/ZZX and WINCS02IC-V/ZZX. The "T" suffix denotes tape-and-reel packaging (vs. tray), not functional or pinout differentiation. All WINCS02IC variants use the same die, same pin mapping, and same datasheet specifications - only temperature grade (I = -40°C to +85°C, V = -40°C to +105°C) and packing method differ. WINCS02ICT-I/ZZX is a drop-in replacement for WINCS02IC-I/ZZX in production.
WINCS02ICT-I/ZZX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Type:
- TxRx Only
- RF Family/Standard:
- Bluetooth, WiFi
- Protocol:
- 802.11b/g/n
- Modulation:
- CCK, DSSS, OFDM
- Frequency:
- -
- Data Rate (Max):
- 54Mbps
- Power - Output:
- 20dBm
- Sensitivity:
- -97dBm
- Memory Size:
- 2MB Flash
- Serial Interfaces:
- SDIO, SPI, UART
- GPIO:
- 7
- Voltage - Supply:
- 3V ~ 3.6V
- Current - Receiving:
- 88mA ~ 94mA
- Current - Transmitting:
- 249mA ~ 289mA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 48-VQFN (7x7)
WINCS02ICT-I/ZZX FAQ
1.How can I place an order for WINCS02ICT-I/ZZX through Aetrix?
Please submit a Request for Quotation (RFQ) for WINCS02ICT-I/ZZX on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for WINCS02ICT-I/ZZX reliable?
The price and inventory of WINCS02ICT-I/ZZX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for WINCS02ICT-I/ZZX is usually 5 days.
3.What payment methods are accepted for WINCS02ICT-I/ZZX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for WINCS02ICT-I/ZZX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for WINCS02ICT-I/ZZX?
WINCS02ICT-I/ZZX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your WINCS02ICT-I/ZZX order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for WINCS02ICT-I/ZZX?
For technical support, including WINCS02ICT-I/ZZX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your WINCS02ICT-I/ZZX requirements.
6.How does Aetrix verify that WINCS02ICT-I/ZZX is sourced from the original manufacturer or authorized distributors?
All WINCS02ICT-I/ZZX products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that WINCS02ICT-I/ZZX meets industry standards.
7.What is the process for return or replacement of WINCS02ICT-I/ZZX?
All WINCS02ICT-I/ZZX units undergo pre-shipment inspection (PSI). If there is an issue with WINCS02ICT-I/ZZX, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The WINCS02ICT-I/ZZX part is unused and in its original packaging.
Return procedure for WINCS02ICT-I/ZZX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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