CY74FCT16827CTPACT

Overview

The CY74FCT16827CTPACT is a 20-bit buffer and line driver from the FCT logic series, manufactured by Texas Instruments. It features two independent 10-bit drivers with non-inverting polarity and 3-state outputs. The device operates within a supply voltage range of 4.5 V to 5.5 V and is housed in a 56-pin SSOP package. Key electrical specifications include a high-level output current of -32 mA and a low-level output current of 64 mA. The propagation delay is typically 9.8 ns at 5 V, with a maximum power dissipation of 1.4 W. It supports surface-mount installation and functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Provides 20-bit buffering capability through two independent 10-bit channels
• Features 3-state outputs for effective bus management and isolation
• Delivers strong drive currents with 64 mA low-level and 32 mA high-level output capability
• Ensures signal integrity with fast propagation delays typical of the FCT series

Applications

• High-speed data bus buffering in computing systems
• Clock distribution networks requiring precise timing
• Memory interface circuits for address and data lines
• Industrial control systems needing robust signal driving

Procurement Notes

Verify the exact suffix CTPA against official Texas Instruments documentation to confirm pinout, packaging dimensions, and moisture sensitivity level. Ensure compatibility with existing PCB footprints and reflow profiles. Confirm RoHS compliance status for the specific manufacturing batch. Cross-reference the full part number with authorized distributors to avoid counterfeit components. Validate that the 56-SSOP package matches the design requirements for thermal performance and mechanical stability.

Selection Notes

Select this component when designing systems requiring wide bus widths with minimal propagation delay. The FCT series offers CMOS input compatibility with TTL output drive strength. Consider the 56-pin SSOP package constraints for board space. Evaluate the 3-state functionality for multiplexed bus architectures. Ensure the 5 V supply rail aligns with the system's power distribution network. Check thermal dissipation limits under maximum load conditions.

Part Context

This device belongs to the CY74FCT16827T family of 20-bit buffers. It serves as a high-performance alternative to older 74-series logic families. The FCT technology combines CMOS low power consumption with Schottky-like speed. It is designed for applications demanding high fan-out and fast switching speeds. The part integrates standard 3-state control for efficient bus sharing.

Replacement Considerations

Direct substitutes may include other 20-bit FCT buffers such as the CY74FCT16827ATPVCG4. Verify pin-to-pin compatibility and electrical parameters before substitution. Ensure the replacement maintains the same 3-state output configuration and drive strength.