74ALVCH16841DGG:11

Overview

The Nexperia 74ALVCH16841DGG:11 is a 20-bit bus interface D-type latch featuring two independent 10-bit registers with 3-state outputs. It operates within a supply voltage range of 2.3 V to 3.6 V, supporting propagation delays as low as 2.4 ns at 3.3 V. The device provides ±24 mA output drive capability and includes active bus hold circuitry on all data inputs. It is housed in a TSSOP56 (SOT364-1) package and complies with JEDEC standards for 2.3 V to 3.6 V operation.

Feature Summary

• Features active bus hold circuitry to maintain valid logic levels on unused or floating data inputs without external resistors.
• Provides 3-state non-inverting outputs suitable for bus-oriented applications with independent latch and output enable controls.
• Utilizes MULTIBYTE flow-through standard pin-out architecture for simplified system design.

Applications

• Bus-oriented memory mapping systems
• High-speed data buffering interfaces
• Parallel data storage in digital logic circuits

Procurement Notes

Verify the specific ordering suffix :11 against current Nexperia documentation to confirm package variant and tape-and-reel specifications. Confirm RoHS compliance status directly with the manufacturer, as regulatory requirements may change. Ensure the procurement channel sources from authorized distributors to guarantee component authenticity and traceability.

Selection Notes

Select this component when designing systems requiring 20-bit parallel data latching with high-speed performance. The ALVCH series is appropriate for applications needing direct TTL level interfacing and low power consumption. Verify that the operating temperature range of -40 °C to +85 °C meets the environmental requirements of the target application.

Part Context

This part belongs to the Nexperia 74ALVCH family of advanced low-voltage CMOS logic devices. The 74ALVCH16841 specifically addresses the need for wide-bus data storage in modern electronic systems. It serves as a bridge between processor buses and peripheral devices, ensuring data integrity during transfer operations.

Replacement Considerations

Check for updated versions of the 74ALVCH16841 series. Consult Nexperia's official replacement guide for any pin-compatible alternatives if this specific package version is discontinued.

FAQ

How does the bus hold feature function?

The active bus hold circuitry holds unused or floating data inputs at a valid logic level, eliminating the need for external pull-up or pull-down resistors.

What is the effect of the nOE input?

When nOE is HIGH, the outputs enter a high-impedance OFF state. This operation does not affect the internal state of the flip-flops.