74ABT162501DLRG4

Overview

The SN74ABT162501DLRG4 is an 18-bit universal bus transceiver utilizing state-of-the-art EPIC-II BiCMOS technology. It features a supply voltage range of 4.5 V to 5.5 V and operates within a temperature range of -40°C to +85°C. The device integrates D-type latches and flip-flops for transparent, latched, or clocked modes. Propagation delays are typically 2.6 ns (A-to-B) and 3.4 ns (B-to-A). Output currents reach up to 32 mA on Port A and 12 mA on Port B.

Feature Summary

• Combines D-type latches and flip-flops for flexible data flow control in transparent, latched, or clocked modes
• B-port outputs include equivalent 25-ohm series resistors to reduce signal overshoot and undershoot
• Ensures high-impedance states during power-up and power-down sequences
• Flow-through architecture optimizes printed circuit board layout

Applications

• High-density memory buffer applications
• Clock drivers and buffering
• Control bus management
• Data acquisition systems

Procurement Notes

Verify the specific ordering suffix 'G4' corresponds to lead-free and RoHS-compliant specifications as defined by Texas Instruments. Confirm that the DL package designation matches the required SSOP footprint dimensions. Ensure compatibility with standard surface-mount assembly processes and verify moisture sensitivity levels prior to placement.

Selection Notes

Select this component when 18-bit bidirectional data transfer with integrated storage is required. The EPIC-II BiCMOS design offers lower power dissipation compared to older technologies. The inclusion of internal series resistors on the B-port simplifies interface design by eliminating external components needed for signal integrity.

Part Context

This device belongs to the Widebus family of universal bus transceivers from Texas Instruments. It provides a robust solution for managing large data buses where both transmission and temporary storage capabilities are necessary within a single integrated circuit package.

Replacement Considerations

SN74ABT162501DGGRE4

FAQ

How does the device handle data flow direction?

Data flow is controlled by complementary output-enable inputs (OEAB and OEBA), latch-enable inputs, and clock inputs, allowing independent control for each direction.

What is the purpose of the internal series resistors?

The B-port outputs contain equivalent 25-ohm series resistors designed to minimize overshoot and undershoot without requiring external resistors.