USB2512BT/M2

USB2512BT/M2 is a 12-port USB 2.0 hub controller IC used to add USB hubs to a system. It provides one upstream port to connect to a host and 12 downstream ports with per-port power switches, over-current protection, and status LEDs. The controller handles USB 2.0 data transfer (up to 480 Mbps per port) and supports bus-powered or self-powered configurations. It offers a control interface (typically I2C/SMBus or a similar serial interface) for the host MCU to configure ports, monitor status, set LED states, and read interrupts. The M2 suffix usually indicates a specific package variant or temperature grade. For exact electrical specs, pinout, power requirements, and register map, consult the official datasheet from the supplier.

Common 1-up/2-down USB 2.0 hub controllers equivalent to Microchip’s USB2512BT/M2 include:
• TI TUSB2042 (2-port, high-speed hub)
• NXP ISP1502 (2-port, high-speed hub)
• Genesys Logic GL852G (2-port, high-speed hub)

USB2512BT/M2 is a 24‑pin USB 2.0 hi‑speed, 2‑downstream‑port hub IC (TSSOP/SSOP family). Key pin functions (summary):
- Upstream USB data: USBDP, USBDM (upstream D+/D–)
- Downstream USB data: P1DP/P1DM, P2DP/P2DM (downstream D+/D– for ports 1 & 2)
- Power supply: VCC (core), VBUS (USB supply), VIO (I/O supply) and GND pins
- Port power control and monitoring: P1_PWR_EN, P2_PWR_EN (port power switches), P1_OC#, P2_OC# or PWR_FAULT
- Reset/clock/control: RESET#, XTAL/CLK pins (oscillator), INT/STATUS (interrupt to host)
- Link/control signals: SUSPEND/WAKE, CONNECT/SESSION or port‑connect detect pins
- Misc/test: TEST/NC pins and package thermal pad (if present)
For exact pin names, order and electrical details, consult the USB2512B datasheet/pinout diagram.

- Manufacturer: VIA Labs, Inc.
- What kind of company: A fabless semiconductor company that designs USB controller ICs (including USB hub controllers), and is associated with VIA Technologies.

Applications of USB2512BT/M2 (a USB 2.0 hub controller with 2 downstream ports):
- Add USB 2.0 ports to desktops, laptops, embedded systems, and SBCs
- USB docking stations and port-replication solutions
- Industrial and medical equipment requiring reliable USB expansion with per-port power switching
- Automotive head units and infotainment systems needing USB hubs
- Consumer electronics peripherals (printers, scanners, external storage) that require multiple USB ports
Note: used as a self-powered or bus-powered hub controller in OEM/embedded designs.

The USB2512BT/M2 comes in a 20-pin TSSOP (SSOP) package; the "/M2" suffix denotes tape-and-reel shipping.