SN74HC245AN

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HC245AN is an octal bus transceiver manufactured by Texas Instruments, belonging to the HC logic series. It features tri-state outputs and operates within a supply voltage range of 2 V to 6 V. The device provides a propagation delay of 22 ns and supports low-level output currents of 6 mA and high-level output currents of -6 mA. Designed for through-hole mounting, it utilizes a PDIP-20 package. The component functions as a non-inverting bidirectional bus transceiver with common control, suitable for standard CMOS input and output levels across an operating temperature range of -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bidirectional data transfer capability with tri-state outputs
• CMOS compatible input and output logic levels
• Common direction and enable control signals for simplified interface

Buffers, Drivers, Receivers, Transceivers Applications

• Bidirectional data bus communication between microprocessors and memory systems
• I/O port expansion in embedded control architectures
• Signal buffering and level shifting in digital logic circuits

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type and pinout configuration against the official Texas Instruments datasheet before integration. Confirm that the ordering suffix matches the required mechanical dimensions and thermal characteristics. Ensure compliance with RoHS directives if applicable to the target assembly process. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal wide-bus interface is required with moderate speed and standard CMOS compatibility. The HC series offers balanced performance for general-purpose digital applications. Consider the PDIP-20 package availability if through-hole technology is mandated for the PCB design. Evaluate the 2 V to 6 V supply range to ensure compatibility with the system power rails.

Buffers, Drivers, Receivers, Transceivers Part Context

This device is part of the SN74HC245 family of octal bus transceivers. Variants such as SN74HC245DWR and SN74HC245DBR offer similar electrical characteristics but differ in packaging, utilizing SOIC or SSOP formats for surface-mount applications. The SN74HC245AN specifically denotes the through-hole PDIP version, maintaining functional equivalence within the broader product line while accommodating different manufacturing requirements.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include other SN74HC245 variants with different packages, such as SN74HC245DWR (SOIC) or SN74HC245DBR (SSOP), provided the board layout supports the alternative footprint. Verify that any replacement maintains the same logic family and pinout compatibility.