74ACT11373NTG4

Overview

The Texas Instruments 74ACT11373NTG4 is an octal transparent D-type latch with three-state outputs, housed in a 24-pin plastic dual-in-line (DIP) package. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range from -40°C to 85°C. The device features buffered input and output-enable pins, ensuring TTL-voltage compatibility for inputs. It utilizes an EPIC (Enhanced-Performance Implanted CMOS) process, providing high-speed switching characteristics and robust latch-up immunity.

Feature Summary

• Features eight transparent D-type latches designed for full parallel access loading.
• Provides three-state bus driving true outputs suitable for highly capacitive or low-impedance loads.
• Includes buffered input and output-enable pins to minimize loading on bus lines.
• Utilizes center-pin VCC and GND configurations to minimize high-speed switching noise.

Applications

• Implementing buffer registers
• Configuring I/O ports
• Driving bidirectional buses
• Serving as working registers

Procurement Notes

Verify the specific ordering suffix 'G4' corresponds to lead-free RoHS compliance when sourcing this component. Confirm that the manufacturer's datasheet explicitly lists the 74ACT11373NTG4 variant as active or available for new designs. Ensure the procurement documentation matches the 24-pin PDIP physical dimensions provided in the official mechanical data section.

Selection Notes

Select this component when an octal latch configuration with three-state outputs is required for bus-oriented systems. The flow-through architecture facilitates optimized PCB layout compared to other pinout arrangements. Consider the EPIC process technology for applications demanding enhanced performance and reliability under standard industrial temperature conditions.

Part Context

This part belongs to the 74ACT logic family, characterized by CMOS technology compatible with TTL input levels. The NT designation indicates a standard plastic dual-in-line package, distinct from shrink small-outline or wide small-outline variants. The device is engineered for general-purpose digital storage and buffering tasks within standard 5V logic circuits.

Replacement Considerations

Consult the TI Package Option Addendum for alternative package versions such as DB (SSOP), DW (SOIC), or NS (SO). Verify functional equivalence if substituting with non-TI manufacturers, ensuring pinouts and electrical specifications match the original design requirements.

FAQ

How does the Output Enable (OE) pin affect internal latch operations?

The OE pin places the outputs in a high-impedance state but does not affect the internal operations of the latches. Data can be retained or entered while the outputs are disabled.

What is the purpose of the center-pin VCC and GND configuration?

This configuration is designed to minimize high-speed switching noise within the device during operation.