TIBPAL16R6-5CFN Equivalent & Substitute Parts

Part Overview

The TIBPAL16R6-5CFN is an IMPACT-X™ PAL® Programmable Logic Device (PLD) IC manufactured by Texas Instruments, housed in a 20-PLCC (9x9) surface mount package. This device features 5 nanosecond propagation delay and operates at 5V input voltage. The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

TIBPAL16R6-5CFN

Texas InstrumentsIn Stock: 19196TIBPAL16R6-5CFN Datasheet

Current PartRFQ

TIBPAL16R6-12MJB

Texas InstrumentsIn Stock: 1343TIBPAL16R6-12MJB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TIBPAL16R6-5CFN is determined by the following critical parameters:

• Programmable Type: Must be PAL architecture
• Series: IMPACT-X™ PAL® family compatibility
• Number of Macrocells: 6 macrocells minimum
• Voltage - Input: 5V nominal operation or compatible range (4.5V ~ 5.5V)
• Package Compatibility: Functional equivalence may require different physical packages depending on application constraints

The TIBPAL16R6-12MJB is identified as a manufacturer-recommended substitute. While it maintains the same PAL architecture, macrocell count, and voltage compatibility, it differs in speed specification (12 ns versus 5 ns) and physical package format (20-CDIP through-hole versus 20-PLCC surface mount).

Parameter Comparison

Engineering Selection Recommendations

The TIBPAL16R6-12MJB serves as the manufacturer-recommended substitute for the obsolete TIBPAL16R6-5CFN. Selection of this alternative is supported by the following factors:

Product Status: The substitute is classified as active, ensuring continued availability and manufacturing support from Texas Instruments, whereas the original part is obsolete.

Compliance: The TIBPAL16R6-12MJB achieves ROHS3 compliance, meeting current environmental and regulatory requirements. The original part does not meet RoHS standards.

Functional Compatibility: Both devices maintain identical PAL architecture, 6 macrocell configuration, and compatible voltage input ranges (5V nominal for the original; 4.5V ~ 5.5V for the substitute).

Trade-offs: The substitute introduces a speed penalty (12 ns versus 5 ns propagation delay) and requires package conversion from surface mount (20-PLCC) to through-hole (20-CDIP). These differences must be evaluated against specific application timing requirements and PCB layout constraints.

Frequently Asked Questions (FAQ)

Q: Can the TIBPAL16R6-12MJB directly replace the TIBPAL16R6-5CFN on existing PCBs?

A: Direct PCB replacement is not possible due to package differences. The original uses a 20-PLCC surface mount package, while the substitute uses a 20-CDIP through-hole package. PCB redesign or adapter solutions are required.

Q: What is the impact of the speed difference (5 ns versus 12 ns)?

A: The substitute has a longer propagation delay of 12 nanoseconds compared to the original 5 nanoseconds. Applications with timing-critical logic paths must verify that the slower speed remains within system specifications.

Q: Are the voltage specifications compatible?

A: Yes. The original part operates at 5V nominal input. The substitute accepts 4.5V to 5.5V input, which encompasses the original specification and provides broader voltage tolerance.

Q: Why is RoHS compliance important for this substitution?

A: RoHS3 compliance of the substitute ensures compatibility with current manufacturing standards and regulatory requirements. The original non-compliant part may face procurement restrictions in regulated industries.

Q: Are there other IMPACT-X™ PAL® alternatives available?

A: Substitution options are limited to devices within the IMPACT-X™ PAL® series that maintain the 6 macrocell configuration and compatible voltage specifications. The TIBPAL16R6-12MJB is the manufacturer-recommended option.