74FCT20807QGI8

Overview

The 74FCT20807QGI8 is a clock fan-out buffer and distribution integrated circuit manufactured by Renesas Electronics Corporation. It features a 1:10 input-to-output ratio, supporting maximum frequencies up to 166 MHz. The device operates with LVTTL inputs and outputs LVTTL signals. It is designed for surface-mount installation in a 20-SSOP package (0.154 inch / 3.90 mm width), also referred to as 20-QSOP. The component functions within a supply voltage range of 2.3 V to 2.7 V and supports an operating temperature range from -40°C to +85°C. This specific part number is currently listed as obsolete.

Feature Summary

• 1:10 Clock Fan-Out Buffer with LVTTL I/O
• Maximum Frequency of 166 MHz
• Supply Voltage Range: 2.3 V to 2.7 V
• Operating Temperature: -40°C to +85°C

Applications

• Clock distribution networks requiring high-speed buffering
• Systems utilizing LVTTL logic families
• Industrial or automotive environments requiring extended temperature ranges

Procurement Notes

This component is officially classified as obsolete by the manufacturer. Verification of availability should focus on surplus distributors or secondary markets rather than direct manufacturing channels. Buyers must confirm the authenticity of stock sources due to the discontinued status. Packaging details indicate a tube configuration for the base part number, though specific lot dates vary across secondary suppliers.

Selection Notes

Designers selecting this component should note the strict 2.3 V to 2.7 V supply voltage requirement, which differs from standard 3.3 V logic levels found in other 74FCT series devices like the 74FCT3807. The 166 MHz frequency capability supports high-speed digital applications. Ensure that the system power rail aligns with the specified voltage range before integration.

Part Context

The 74FCT20807 belongs to the 74FCT family of fast CMOS TTL-compatible logic devices. It serves as a specialized clock driver variant within the broader 74FCT product line, distinct from general-purpose buffers. The 'QGI' suffix typically denotes the 20-SSOP package and industrial temperature grade, while the '8' often indicates tape-and-reel packaging for the active version of this part family.

Replacement Considerations

Direct parameter-equivalent replacements may be limited due to the obsolete status. Potential alternatives include checking for newer generations of clock drivers from Renesas or cross-reference models from other manufacturers offering 1:10 LVTTl buffers with similar 166 MHz performance and 2.3V-2.7V operation.