74ABT657DB,118

Buffers, Drivers, Receivers, Transceivers Overview

The 74ABT657DB,118 is an octal transceiver from the 74ABT logic family manufactured by NXP USA Inc. It features non-inverting buffers with 3-state outputs and an integrated 8-bit parity generator/checker. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports bidirectional data flow controlled by the T/R input. It utilizes an SSOP24 package (SOT340-1) and functions across an ambient temperature range of -40 °C to +85 °C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Integrates combinational functions including octal bus transceivers and parity generation/checking in a single package
• Provides high output drive capability with guaranteed current sinking and sourcing levels
• Includes power-up 3-state functionality to ensure safe initialization
• Offers robust latch-up protection exceeding specified JESD standards

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented applications requiring bidirectional data transfer
• Systems utilizing parity checking for data integrity verification
• High-speed digital circuits requiring low static and dynamic power dissipation

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix '118' corresponds to the SSOP24 plastic shrink small outline package variant. Confirm that the required operating temperature range aligns with the -40 °C to +85 °C specification provided in the datasheet. Ensure design compatibility with the 74ABT logic family voltage levels before procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal transceiver with integrated parity error detection is required for bus-oriented designs. The 74ABT series offers higher speed compared to standard variants while maintaining CMOS-compatible inputs. Consider the SSOP24 package dimensions if space constraints dictate the use of a shrink small outline package over standard SO or TSSOP formats.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74ABT high-performance BiCMOS logic family, designed for applications demanding high speed combined with low power consumption. The 74ABT657 specifically addresses the need for combining data transmission with error checking capabilities, reducing component count in complex digital systems.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The 74ABT657D (SO24 package) and 74ABT657PW (TSSOP24 package) are functionally equivalent alternatives within the same product family. Verify pinout compatibility and package footprint differences when substituting these variants.