SN74ALS245A-1DWG4

Overview

The SN74ALS245A-1DWG4 is an octal bus transceiver from the Texas Instruments SN54/74ALS245A series. It operates with a supply voltage range of 4.5 V to 5.5 V and features non-inverting data transmission. The device provides three-state outputs capable of driving loads up to 24 mA in the low state and -15 mA in the high state. It utilizes a 20-pin SOIC package and supports surface-mount installation. The component ensures reliable signal integrity across an operating temperature range of 0°C to +70°C.

Feature Summary

• Octal configuration for simultaneous eight-bit data transfer
• Three-state outputs allowing direct system bus connection
• Non-inverting logic function for signal direction control

Applications

• Memory module data bus interfacing
• Microprocessor-based system architecture
• Control logic signal routing

Procurement Notes

Verify the specific suffix 'G4' indicates RoHS compliance and manufacturing details as per Texas Instruments documentation. Confirm the '1D' designation corresponds to the specified SOIC-20 package variant. Ensure compatibility with standard 5V logic levels before integration into existing circuit designs.

Selection Notes

Select this component when an octal, non-inverting transceiver is required for 5V systems. The ALS series offers faster switching speeds compared to standard LS logic. Verify that the 20-pin SOIC footprint matches the target PCB layout constraints and thermal requirements.

Part Context

This part belongs to the SN54/74ALS245A family of octal bus transceivers. It serves as a bidirectional data path controller within digital logic circuits. The device facilitates communication between different subsystems requiring isolated or buffered data lines.

Replacement Considerations

Compatible substitutes include SN74ALS245ADWR and SN74ALS245ANSR. These alternatives share identical logical functions and pinouts but may differ in packaging style or reel specifications.