SN74HCT240DGSR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HCT240DGSR 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 and features TTL-voltage compatible inputs. The device provides high-current outputs capable of driving up to 15 LSTTL loads, with output drive currents specified at ±6mA at 5V. It is organized as two independent 4-bit buffers with separate output-enable inputs. The component utilizes a VSSOP-20 package and supports an operating temperature range from -40°C to +125°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal configuration with dual 4-bit buffers and independent output enables
• TTL-voltage compatible inputs for direct interface with logic systems
• High-current outputs designed to drive multiple LSTTL loads
• Low power consumption characteristics with minimal static current draw

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address drivers in digital systems
• Clock signal distribution circuits
• Bus-oriented receivers and transmitters
• Buffering memory address registers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific DGS (VSSOP) package designation and the 'DGSR' suffix indicating tape-and-reel packaging containing 5000 units. Confirm RoHS compliance and moisture sensitivity level ratings prior to assembly. Ensure the operating temperature range meets system requirements for industrial environments.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing between TTL-compatible logic sources and CMOS buses requiring inversion and buffering. The HCT series ensures compatibility with standard TTL input thresholds while offering CMOS output performance. Consider the VSSOP package size constraints and thermal dissipation capabilities relative to the application's power budget.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SNx4HCT240 family of octal buffers and line drivers. It is designed to improve performance and density in 3-state memory address drivers and bus-oriented applications. The device functions by passing inverted data from A inputs to Y outputs when enabled, or entering a high-impedance state when disabled.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74HCT240DWR

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle unused inputs?

All unused inputs must be connected to either VCC or GND to prevent undefined operational states caused by floating voltages.

What is the function of the OE pins?

The Output Enable (OE) pins control the state of the outputs. When OE is low, the device passes inverted data; when OE is high, the outputs enter a high-impedance state.