Overview
The FT2232D-REEL, produced by FTDI (Future Technology Devices International Ltd), is a dual USB to serial UART/FIFO IC. This component is part of the third generation of FTDI’s popular USB UART/FIFO ICs and is an updated version of the FT2232C and FT2232L, offering lead-free and pin-compatible features. Although it is not recommended for new designs (NRND), it remains a versatile and powerful tool for various serial and parallel interface applications. The FT2232D handles the entire USB protocol on the chip, eliminating the need for USB-specific firmware programming.
Key Specifications
| Specification | Details |
|---|---|
| Package Type | 48-LD Lead Free LQFP |
| Operating Voltage | 4.35V to 5.25V |
| Operating Temperature | -40°C to 85°C |
| UART Interface | Supports 7/8 data bits, 1/2 stop bits, and Odd/Even/Mark/Space/No Parity |
| UART Data Transfer Rate | 300 Baud to 1M Baud (RS232), 300 Baud to 3M Baud (TTL and RS422/RS485) |
| FIFO Interface | Up to 1M Byte/second (Parallel FIFO) |
| MPSSE Interface | Supports I2C, JTAG, SPI bus |
| USB Compatibility | USB 2.0 Full Speed (12M bits/second), UHCI/OHCI/EHCI host controller compatible |
| Power Configuration | Bus powered, self powered, and high-power bus powered USB configurations |
| Additional Features | Integrated 3.3V LDO regulator, integrated POR function, on-chip clock multiplier PLL (6MHz – 48MHz), ESD protection |
Key Features
- Single chip USB to dual channel serial/parallel ports with various configurations
- Entire USB protocol handled on the chip; no USB-specific firmware programming required
- FT232B-style UART interface with full handshaking and modem interface signals
- FT245B-style FIFO interface with bi-directional data bus and simple 4-wire handshaking interface
- Multi-Protocol Synchronous Serial Engine (MPSSE) interface for I2C, JTAG, and SPI protocols
- CPU-style FIFO interface mode and MCU Host Bus Emulation Mode
- Fast Opto-Isolated Serial Interface Mode and Enhanced Bit-Bang Mode interface options
- Interface mode and USB description strings configurable in external EEPROM over USB
- Integrated Power-On-Reset circuit and on-chip clock multiplier PLL
- 5V and 3.3V logic IO interfacing with independent level conversion on each channel
- Low operating and USB suspend current
- FTDI’s royalty-free VCP and D2XX drivers
Applications
- USB to Dual Port RS232 Converters
- USB to Dual Port RS422/RS485 Converters
- PDA to USB data transfer
- Upgrading Legacy Peripheral Designs to USB
- USB Smart Card Readers
- USB Instrumentation
- USB JTAG Programming
- USB Industrial Control
- USB to SPI Bus Interfaces
- USB MP3 Player Interface
- USB FLASH Card Reader/Writers
- Field Upgradable USB Products
- Set Top Box PC - USB interface
- Galvanically Isolated Products with USB
- USB Digital Camera Interface
- USB Bar Code Readers
Q & A
- What is the FT2232D-REEL?
The FT2232D-REEL is a dual USB to serial UART/FIFO IC produced by FTDI, designed for various serial and parallel interface applications.
- Why is the FT2232D not recommended for new designs?
The FT2232D is marked as NOT RECOMMENDED FOR NEW DESIGN (NRND), indicating that it is not the preferred choice for new projects, but it can still be used in existing designs.
- What are the key interface options of the FT2232D?
The FT2232D supports UART, FIFO, MPSSE (for I2C, JTAG, SPI), Bit-Bang, and CPU-style FIFO interfaces.
- What are the data transfer rates for the UART and FIFO interfaces?
The UART interface supports data transfer rates from 300 Baud to 1M Baud (RS232) and 300 Baud to 3M Baud (TTL and RS422/RS485). The FIFO interface supports up to 1M Byte/second.
- Does the FT2232D require specific USB firmware programming?
No, the FT2232D handles the entire USB protocol on the chip, eliminating the need for USB-specific firmware programming.
- What are the power configuration options for the FT2232D?
The FT2232D supports bus powered, self powered, and high-power bus powered USB configurations.
- What is the operating temperature range of the FT2232D?
The operating temperature range is -40°C to 85°C.
- Does the FT2232D support ESD protection?
- What drivers are available for the FT2232D?
FTDI’s royalty-free VCP and D2XX drivers are available for the FT2232D.
- What are some typical applications of the FT2232D?
Typical applications include USB to serial converters, PDA to USB data transfer, USB smart card readers, USB instrumentation, and more.
- What is the package type of the FT2232D?
The FT2232D is available in a 48-LD lead-free LQFP package.
