M38510/34601BRA

Latches Overview

The M38510/34601BRA is a military-grade octal transparent D-type latch with 3-state outputs manufactured by Texas Instruments. It belongs to the F/FAST logic series and operates within a supply voltage range of 4.5 V to 5.5 V. The device features eight latches in a single package, providing full parallel access for loading data. It includes buffered control inputs and an output-enable input that places outputs in a high-impedance state without affecting internal latch operations. Characterized for operation over the full military temperature range of -55°C to 125°C, it utilizes a 20-pin ceramic dual in-line package (CDIP).

Latches Feature Summary

• Octal transparent D-type latches designed for buffer registers, I/O ports, and bidirectional bus drivers.
• Three-state outputs capable of driving highly capacitive or low-impedance loads without interface components.
• Buffered control inputs ensure stable signal integrity during data transfer.
• Output-enable input isolates outputs while allowing new data entry or retention.

Latches Applications

• Implementing buffer registers in digital systems.
• Serving as I/O ports for peripheral interfacing.
• Functioning as bidirectional bus drivers.
• Operating as working registers in memory architectures.

Latches Procurement Notes

Verify the specific ordering suffix matches the required package type, as the SN54F373 family offers multiple configurations including CDIP, CFP, and LCCC. Confirm that the MIL-M-38510 qualification level meets project requirements. Ensure the component is sourced from authorized distributors to guarantee authenticity and traceability for military applications.

Latches Selection Notes

Select this component when a wide operating temperature range and robust drive capability are necessary. The F/FAST series provides faster switching speeds compared to standard TTL families. Consider the 20-pin CDIP package for through-hole mounting in rugged environments where ceramic packaging offers superior reliability against thermal stress.

Latches Part Context

This part is a military-qualified version of the SN54F373 octal latch. It falls under the SN54F/74F series, known for fast propagation delays. The M38510 designation indicates compliance with MIL-M-38510 specifications for microcircuits, ensuring higher quality and reliability standards than commercial counterparts.

Latches Replacement Considerations

Direct replacements include other MIL-M-38510 qualified versions such as JM38510/34601B2A or M38510/34601BSA, depending on the preferred package style. Commercial equivalents like the SN74F373 offer similar functionality but lack the extended temperature range and military screening.