FT245 USB FIFO Board (mini) User Guide

Overview

The FT245 USB FIFO Board (mini) is an accessory board that provides a USB to parallel FIFO interface, with FT245 chip onboard, also features USB mini-AB connector, and control interface (8 data pins & 6 control pins).

The FT245 USB FIFO Board (mini) is ideal for establishing communication between MCU and PC.

There is also a jumper used for selecting VCC output level provided on the board:

Short the jumper to select output voltage level as 5V or 3.3V. In this case, the accessory board is powered from USB *connection and provides power to the target application board
If the jumper is open, the accessory board should be powered from the target application board (3.3V-5V)

Resources

FT245RL^[1]
- Single chip USB to parallel FIFO bidirectional data transfer interface.
- Entire USB protocol handled on the chip - No USB-specific firmware programming required.
- Simple interface to MCU / PLD / FPGA logic with simple 4-wire handshake interface.
- Data transfer rate to 1 Megabyte / second - D2XX Direct Drivers.
- Data transfer rate to 300 kilobyte / second - VCP Drivers.
- 256 byte receive buffer and 128 byte transmit buffer utilising buffer smoothing technology to allow for high data throughput.
USB interface
- Two types of USB interfaces, USB mini and USB type A, for choice.
Power supply jumper VCCIO JMP
- The power supply jumper VCCIO JMP can be set to 5V or 3.3V to supply different voltages to VCC pin of a motherboard.
Power status PWR LED
- The PWR LED is used for checking whether the module is power supplied.
Pin header
- It can be used for corresponding interface connection.

Pin definition

Name	Type	Description
VCCIO	Power supply	It can be used to supply FT245 chip or external devices. 3.3V or 5V supply can be set by the onboard jumper.
GND	Power supply	Ground
D0~D7	Input/Output	FIFO data bus bit 0 ~ bit 7
NC	NC	No Connection
RST#	Input	Can be used by an external device to reset the FT245.
PWREN#	Output	Goes low after the device is configured by USB, then high during USB suspend.
TXE#	Output	When high, do not write data into the FIFO. When low, data can be written into the FIFO by strobing WR high, then low.
RXF#	Output	When high, do not read data from the FIFO. When low, there is data available in the FIFO which can be read by strobing RD# low, then high again.
WR#	Input	Writes the data byte on the D0...D7 pins into the transmit FIFO buffer when WR goes from high to low.
RD#	Input	Enables the current FIFO data byte on D0...D7 when low. Fetched the next FIFO data byte (if available) from the receive FIFO buffer when RD# goes from high to low.

References

Jump up↑ FT245: The FT245R is the USB FIFO interface Integrated Circuit Devices.

Introduction

USB to parallel FIFO interface with USB mini-AB connector

Resources

FT245 Datasheets

Software

To：

Dear Customers, There may be a lag of several hours before we could process your order, depending on the time difference between your location and ours. Sincerely hoping your understanding!

Email(support)

services01@spotpear.com

TAG： Raspberry Pi 0.85inch LCD ESP32-C3-Ornament-Trinket-LVGL-Astronaut-Clock-Watch-MINI-TV-1.69inch-Round-LCD-TouchScreen-ST7789-240x280 Industrial Isolated USB TO 4CH RS485 (B) Converter UART CH344L For Wall/Rail-Mount DeepSeek AI Voice Chat ESP32 C6 Development Board 1.69 inch LCD Display 240x280 1.69inch TouchScreen Programmable Watch Milk-V Duo Sipeed RISCV LicheeRV Nano Super-Mini SG2002 AI RAM-256MB Electronic EYE 0.71 inch Round Double LCD Display Dual Screen For Arduino Raspberry Pi ESP32 Pico ST ESP32 Thermal imaging camera MiniPCIe Interface 2 CH CAN Card USB CAN Multiple Protection Circuits For Linux/Windows Milk-V Duo RJ45 Raspberry Pi display spotpear Raspberry Pi 12.3 inch DSI MIPI Display TouchScreen LCD 720x1920 Luckfox Lyra Omni3576 RK3576 Raspberry Pi DSI 800×480 Raspberry Pi 5 Audio Card Rockchip UART To CAN Mini ESP32 ST7789 configuration Raspberry Pi 5 PCIe FFC Connector to Standard PCIe x1 Slot (C) Expansion Board CAM-GC2083

Price：

$9.89

Model：

FT245-USB-FIFO-Board-(mini)

FT245 USB FIFO Board (mini)

TAG： Motor Testing Module SpeedyBee BLS 60A ESC Controller Motor Driver Board DJI FPV Drone RS485 to Ethernet Raspberry Pi Raspberry Pi 4B PoE Raspberry Pi GPS GNSS Expansion Board L76K Beidou (BDS) GLONASS QZSS A-GNSS Also For Jeston mobile phone Milk-V RJ45 USB IR Infrared Thermal Imaging Camera B Raspberry Pi5 PCIe M.2 NVMe Solid State Drive 128 256 512G 1TB SSD 2280 2242 Raspberry Pi CM5 Mini Base IO Board NANO A Development For Compute Module 5 Raspberry Pi 6.25 inch DSI Display MIPI LCD Capacitive TouchScreen 720x1560 Providing Effective Interference Shielding Industrial Modbus RTU RS485 8-ch 30A High Current Relay Module (E) With Digital Input Arduino Thermal imaging 18.5 inch Dual Double LCD Computer PC Monitor Display Secondary Screen TypeC Mini HDMI Windows MacOS TTL To CAN 1.91Inch AMOLED Raspberry Pi 5 Case Jetson Nano Module

Address：Rm401, building 4, Enlai industrial city, Nankang Road, Danzhutou community, Nanwan street, Longgang District, Shenzhen

Email：tech-support@spotpear.com (Only tech support .Order see 'CONTACT US' at our web )