FT245RNL-REEL

Controllers Overview

The FT245RNL-REEL is a USB to parallel FIFO interface controller manufactured by FTDI. It operates within a supply voltage range of 1.8V to 5.25V and supports USB 2.0 standards at Full Speed (FS) and High Speed (HS) data rates up to 480 Mb/s. The device features integrated 128-byte receive and 256-byte transmit buffers with smoothing technology for high throughput. It includes an on-chip 1024-bit EEPROM, clock generation, and USB termination resistors. Operating temperatures span from -40°C to +85°C. The component is housed in a 28-pin SSOP package and is currently obsolete.

Controllers Feature Summary

• Integrates complete USB protocol handling without requiring external firmware programming
• Includes fully integrated 1024-bit EEPROM for device descriptors and configuration storage
• Features built-in clock generation and USB termination resistors eliminating external components
• Supports both synchronous and asynchronous Bit-Bang/GPIO interface modes

Controllers Applications

• USB to parallel FIFO bridge designs
• High-speed data acquisition systems
• Embedded logic analyzer interfaces
• Custom peripheral control via USB

Controllers Procurement Notes

This component is officially obsolete and no longer manufactured by FTDI. Verification of availability should focus on surplus or secondary market sources rather than direct manufacturer distribution. Buyers must confirm the specific reel packaging status and ensure compatibility with replacement parts such as the FT240XS-R if continuing production is required.

Controllers Selection Notes

Designers should consider the FT240XS-R as a recommended replacement due to the obsolescence of the FT245RL series. Verify that the application does not require the specific buffer sizes or pinout of the legacy FT245RNL. Check if the newer replacement supports the required USB speed and interface mode for the target system integration.

Controllers Part Context

The FT245RNL-REEL belongs to the FT245 family of USB FIFO controllers. It is the lead-free, RoHS-compliant version of the FT245RL, packaged in a compact 28-pin SSOP format. This variant simplifies design by integrating passive components typically required for USB connectivity, reducing board space and assembly complexity compared to earlier discrete solutions.

Controllers Replacement Considerations

FTDI recommends the FT240XS-R as a substitute for the obsolete FT245RL/FT245RNL series. Engineers must verify pin compatibility and functional equivalence before substitution.