STMicroelectronics AEK-USB-2TYPEC1

Overview

AEK-USB-2TYPEC1 from STMicroelectronics is an automotive-grade dual-port USB Type-C® and Power Delivery expansion board built around two STUSB1702Y USB Type-C port controllers. It implements a full Provider-role solution with VBUS monitoring up to 20 V, CC line orientation detection, VCONN switching (600 mA), and independent current sensing per port. Designed for ASIL-B automotive systems, it interfaces directly with the SPC58EC-DISP discovery board.

For engineers reviewing the AEK-USB-2TYPEC1 datasheet, AEK-USB-2TYPEC1 pinout, AEK-USB-2TYPEC1 application, or AEK-USB-2TYPEC1 equivalent, this board supports rapid development of USB PD Provider firmware, dual-port power negotiation, cable orientation-aware routing, and automotive-compliant USB interface validation using ST's STSW-USB2TYPEC1 firmware package.

Technical Context

The board implements two independent STUSB1702Y controllers - each integrating a complete USB Type-C state machine, BMC transceiver, 22 V CC-line protection, and 20 V VBUS monitoring. Each controller manages attach/detach, orientation detection, VBUS discharge paths, and VCONN power delivery (600 mA).

USB 2.0 data lines are routed to on-board connectors J101 and J102 and support pass-through to a 4×20 header. Power delivery profiles up to 20 V are enabled via an external power board interface, while real-time VBUS current sensing (per port) uses TSC1031IYPT current-sense amplifiers with ±1% gain accuracy.

Key Specifications

Availability

AEK-USB-2TYPEC1 is available at Aetrix Electronics and suitable for automotive infotainment head units, ADAS domain controllers, and vehicle telematics gateways requiring stable component supply and ASIL-B-aligned development tooling.

Supply support for AEK-USB-2TYPEC1 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in automotive, industrial, and power-efficient microelectronics solutions.

The AEK-USB-2TYPEC1 belongs to ST's AutoDevKit ecosystem - a family of automotive-grade evaluation boards designed to accelerate functional safety-compliant USB PD development for ASIL-B applications using SPC58 microcontrollers.

FAQ

Does AEK-USB-2TYPEC1 support USB PD Sink or Dual-Role Port (DRP) functionality?

No. The board is hardwired for Provider-only operation: both STUSB1702Y controllers are configured as sources only, with fixed VBUS output paths, no SNK-enabling circuitry, and no firmware support for role swap. Data lines remain USB 2.0 only - no SuperSpeed or Alternate Mode capability is implemented.

What external hardware is required to enable full USB PD power delivery?

An external power board (not included) must be mounted via the 9×2 power connector. That board must provide regulated 5 V, 9 V, 15 V, and 20 V outputs with current limiting, as the AEK-USB-2TYPEC1 itself contains only VBUS switching, monitoring, and discharge circuitry - not DC-DC conversion.

Can the USB 2.0 data lines be used for host-to-device communication with a PC?

Yes - J101 and J102 are standard USB 2.0 Type-A receptacles wired to USBD0[0..1] and USBD1[0..1]. When connected to a PC host, they operate as downstream-facing ports (DFP), enabling enumeration and data transfer under USB PD Provider negotiation, provided the SPC58EC-DISP board runs STSW-USB2TYPEC1 firmware.

Are the status LEDs programmable or fixed-function?

All four LEDs (one power status + three per-port indicators) are hardwired to STUSB1702Y alert and status pins: LED color and behavior (e.g., orange for flipped CC orientation, green for VBUS OK) are fixed by the controller's internal state machine and cannot be reconfigured via firmware or jumper.