74ABT651D,118

Buffers, Drivers, Receivers, Transceivers Overview

The NXP USA Inc. 74ABT651D,118 is an octal bus transceiver with integrated registers and inverting 3-State outputs. It supports multiplexed transmission of real-time data or stored register data between two buses. The device operates within a supply voltage range of 4.5 V to 5.5 V and functions across a temperature range of -40 °C to +85 °C. Key electrical parameters include a maximum clock frequency of 125 MHz, propagation delays ranging from 1.5 ns to 6.5 ns depending on the signal path, and output drive capabilities of +64 mA (LOW) and -32 mA (HIGH).

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Independent A and B bus registers allow for simultaneous storage and real-time transfer operations.
• Multiplexing capability enables selection between direct bus-to-bus transmission and registered data output.
• Provides power-up reset and power-up 3-State functionality to ensure safe initialization.
• Supports live insertion and extraction without disrupting system operation.

Buffers, Drivers, Receivers, Transceivers Applications

• Bus management systems requiring independent control of data flow direction.
• Multiplexed transmission of registered versus real-time data streams.
• High-speed interface circuits utilizing 3-State isolation.

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify that the specific ordering suffix ',118' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the component status aligns with current production availability, as legacy Philips Semiconductors documentation may indicate superseded versions. Ensure compatibility with existing PCB footprints for the 24-pin plastic SO package before finalizing procurement orders.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems that require bidirectional data transfer with optional latching capabilities. The inverting logic function distinguishes it from non-inverting counterparts like the 74ABT652. Consider the high output drive strength for applications driving heavy capacitive loads or multiple downstream inputs. Verify that the operating voltage and temperature ranges meet the specific environmental constraints of the target application.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the 74ABT logic family, characterized by BiCMOS technology that combines high speed with low power consumption. The 74ABT651 serves as the inverting variant within the octal transceiver/register category. It was originally published by Philips Semiconductors and is now distributed under the NXP brand portfolio, maintaining backward compatibility with standard 74ABT specifications.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The 74ABT652 is the non-inverting equivalent within the same product family. For pin-compatible alternatives, verify if other manufacturers offer octal transceivers with identical register configurations and 3-State output characteristics. Ensure that any substitute maintains the same supply voltage limits and thermal performance ratings.

Buffers, Drivers, Receivers, Transceivers FAQ

What is the difference between the 74ABT651 and the 74ABT652?

The 74ABT651 is the inverting version of the transceiver, while the 74ABT652 is the non-inverting version. Both share identical functional block diagrams and pinouts.

How does the device handle data during power-up?

The device features a power-up reset mechanism that places the outputs into a 3-State condition upon power application, preventing unintended bus contention.

Can the device support live insertion and extraction?

Yes, the design permits live insertion and extraction, allowing connections to be made or removed while the system is powered and operational.