SN74ALVCH16260DLR

Overview

The SN74ALVCH16260DLR is a 12-bit to 24-bit multiplexed D-type latch with 3-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 1.65 V to 3.6 V and features three 12-bit I/O ports (A1-A12, 1B1-1B12, and 2B1-12) for address or data transfer. The device utilizes the EPIC submicron process and includes active bus-hold circuitry on data inputs. It is characterized for operation from -40 °C to +85 °C and is housed in a 56-pin SSOP package.

Feature Summary

• Supports multiplexing and demultiplexing of two separate data paths onto a single path using internal storage latches controlled by LE1B, LE2B, LEA1B, and LEA2B inputs.
• Features active bus-hold circuitry on data inputs to maintain valid logic levels without requiring external pullup or pulldown resistors.
• Provides independent output-enable controls (OE1B, OE2B, OEA) that manage bus transceiver functions and allow bank control in the A-to-B direction.

Applications

• Multiplexing and demultiplexing address and data information in microprocessor applications
• Bus-interface applications requiring combined address and data handling
• Memory-interleaving applications

Procurement Notes

Verify the specific ordering suffix 'DLR' against the manufacturer's current Package Option Addendum to confirm the exact physical package type and carrier configuration. Ensure the component meets RoHS compliance standards as specified in the datasheet documentation before finalizing procurement specifications.

Selection Notes

Select this component when designing systems that require simultaneous handling of 12-bit address and data buses. The device is suitable for low-voltage environments operating between 1.65 V and 3.6 V. Consider the 56-pin SSOP footprint during PCB layout planning to ensure adequate clearance and thermal management.

Part Context

This device belongs to the Texas Instruments Widebus family and is built using the EPIC submicron CMOS process. It offers high ESD protection exceeding 2000 V per MIL-STD-883 and latch-up performance exceeding 250 mA per JESD 17, ensuring robust operation in demanding digital logic environments.

Replacement Considerations

The SN74ALVCH16260DGGR serves as an alternative pin-compatible option utilizing a TSSOP package instead of the SSOP form factor. Verify package dimensions and lead pitch compatibility before substituting.