FT245RQ-REEL

FT245RQ-REEL is FTDI’s FT245R USB-to-parallel FIFO converter in tape-and-reel packaging (for automation assembly). It provides an 8-bit bidirectional data bus (D0–D7) that connects to a microcontroller or peripheral, while the USB interface is a USB 2.0 Full-Speed device (12 Mbps) to a PC. The IC handles the USB protocol and buffering, so you don’t need to implement USB on-device code. Typical use: enable simple USB access to a parallel peripheral for data logging, data acquisition, instrumentation, or other USB-enabled peripherals. The -REEL suffix simply denotes packaging on a reel for automated pick-and-place; reel quantities vary by supplier. For exact electrical specs (I/O voltage, clocking, handshake signals, and FIFO behavior), consult the FT245R datasheet and the packaging notes for the REEL variant.

Direct equivalents:
- FTDI FT245R (same device family; FT245RL is the SSOP variant; FT245RQ denotes QFN/reel packaging).
Close functional alternatives (USB–parallel/FIFO bridges):
- FTDI FT232H, FT2232H
- Cypress EZ-USB FX2LP (CY7C68013A)
Choose based on required package, pinout and feature set (single vs. dual channel, MPSSE, FIFO depth).

FT245RQ-REEL features (concise):
- USB 2.0 Full-Speed device (12 Mbps) with integrated USB transceiver.
- 8-bit parallel FIFO interface (D0–D7) for data to/from a host MCU.
- Internal dual 8-bit FIFOs with hardware flow control (TXF/RXF flags; RD#, WR#, CS#).
- 4 configurable CBUS I/O pins (CBUS0–CBUS3) for GPIO, LEDs, etc.
- Supports FTDI D2XX drivers and Virtual COM Port (VCP) for Windows/macOS/Linux.
- No external MCU required; automatic USB enumeration and suspend/resume support.
- Reel-packaged, RoHS-compliant for high-volume production (FT245RQ-REEL).

Pin count: 28 pins (SSOP-28 reel package).
Primary function: USB-to-parallel FIFO bridge (FT245R). It provides a USB 2.0 full-speed device interface and an asynchronous 8-bit parallel FIFO interface (D0–D7) for simple connection to microcontrollers or logic. Key signals include RD#, WR#, RXF# (data available), TXE# (transmit ready), OE# (output enable), configurable CBUS pins, USB D+ and D-, VBUS, VCC/3.3V regulator output, and GND. It handles USB protocol, endpoints, and enumeration, exposing a byte-wide FIFO for host↔device data transfer.

The FT245RQ-REEL is manufactured by FTDI (Future Technology Devices International Ltd). FTDI is a Scottish semiconductor company that specializes in USB interface ICs and related products — notably USB-to-serial/FIFO bridge chips, modules and cables for embedded and industrial applications.

FT245RQ-REEL is a USB-to-8‑bit parallel FIFO interface (FT245R) in reel packaging. Typical applications:
- USB bridge to 8‑bit microcontrollers, DSPs, FPGAs/ASICs (simple USB data path, no USB firmware needed)
- Data acquisition, logging and instrument interfaces (sensors, ADC/DAC) sending data to a PC
- Test and measurement equipment requiring PC connectivity
- Industrial automation and remote I/O, PLC interfaces
- Embedded systems for firmware updates, configuration and control via USB
- Prototyping/production of USB-enabled products needing compact, low-cost USB I/O

FT245RQ-REEL is the FT245R USB FIFO device in a QFN package, supplied on tape-and-reel for automated pick-and-place assembly.