SN74HCT240ANSR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HCT240ANSR is an octal buffer and line driver with 3-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 4.5V to 5.5V. The device features high-current outputs capable of driving up to 15 LSTTL loads, with ±6mA output drive at 5V. Typical propagation delay is 12 ns. It consumes low power with a maximum ICC of 80μA and has a low input current of 1μA max. Inputs are TTL-voltage compatible. The component is housed in a 20-SOP package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal buffers and line drivers designed for 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters
• TTL-voltage compatible inputs with low input current
• High-current outputs suitable for driving multiple LSTTL loads
• Low power consumption characteristics

Buffers, Drivers, Receivers, Transceivers Applications

• 3-state memory address drivers
• Clock drivers
• Bus-oriented receivers and transmitters

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'ANSR' corresponds to the SOP-20 package and tape-and-reel carrier format as defined in the manufacturer's orderable information. Confirm RoHS compliance status and moisture sensitivity level ratings prior to procurement. Ensure the selected variant matches the required operating temperature range and thermal performance specifications for the intended application environment.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring octal buffering with 3-state capability and TTL-compatible logic levels. The HCT series ensures compatibility with standard TTL inputs while offering CMOS density benefits. Consider the 20-SOP package dimensions and thermal resistance values if board space or heat dissipation constraints exist. Verify that the 4.5V to 5.5V supply voltage range aligns with the system power architecture.

Buffers, Drivers, Receivers, Transceivers Part Context

The SN74HCT240 belongs to the SNx4HCT240 family of octal buffers and line drivers with 3-state outputs. This family includes variants such as SN74HCT240N (PDIP), SN74HCT240DW (SOIC), and SN74HCT240PWR (TSSOP). The 'SN74' prefix indicates commercial grade operation, while 'HCT' denotes High-speed CMOS technology with TTL-compatible inputs. The device improves performance and density in digital logic applications.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include other SN74HCT240 variants with different packages, such as SN74HCT240DWR (SOIC) or SN74HCT240PWR (TSSOP), provided the pinout and electrical characteristics remain identical. Verify package compatibility and lead finish requirements before substitution.