SN74BCT640N

Buffers, Drivers, Receivers, Transceivers Overview

The SN74BCT640N is an octal bus transceiver from the Texas Instruments BCT logic series, housed in a 20-pin PDIP package. It features three-state outputs and inverting polarity for asynchronous data bus communication. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports through-hole mounting. It includes eight input lines and eight output lines, with a propagation delay characteristic suitable for standard digital logic applications.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Designed for asynchronous communication between data buses
• Provides three-state outputs for effective bus line management
• Utilizes BiCMOS technology for high-speed performance

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous data bus communication systems
• Octal buffer and driver circuits
• General-purpose digital logic interfacing

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific revision level and RoHS compliance status directly against the manufacturer's current documentation before integration. Confirm that the 20-pin PDIP package dimensions match your PCB footprint requirements. Ensure the operating temperature range aligns with your system's environmental conditions. Cross-reference the datasheet revision date to guarantee access to the most recent electrical characteristics and handling guidelines.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an inverting octal transceiver with three-state control is required for bus-oriented architectures. The BCT series offers a balance of speed and power consumption compared to older logic families. Consider the PDIP package constraint if surface-mount alternatives are not feasible. Verify that the inverting polarity matches the signal path requirements of the connected components.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74BCT family, which combines BiCMOS technology with TTL-compatible inputs. The '640' designation specifically identifies it as an octal bus transceiver with inverting functionality. It is distinct from non-inverting variants like the SN74BCT540 or latch-based devices like the SN74BCT374 within the same product portfolio.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers: SN74ALS640BNE4.