PAL16R6B4CNL

Programmable Logic Device Pld Overview

The PAL16R6B4CNL is a programmable logic device (PLD) manufactured by Vantis Corporation, belonging to the PAL (Programmable Array Logic) family. It features an Output Term (OT) architecture with registered outputs, designed for TTL logic compatibility. The device operates at a maximum clock frequency of 25 MHz and exhibits a propagation delay of 25 ns. It is housed in a 20-pin Plastic Quad Flat Package (PQCC), specifically identified as JESD-30 code S-PQCC-J20. The component requires a nominal supply voltage of 5 V and is rated for surface mount assembly. Its functional configuration includes 8 inputs and 8 registered outputs, supporting up to 64 product terms for complex logic implementation within the specified electrical constraints.

Programmable Logic Device Pld Feature Summary

• PAL-type architecture with registered output functions
• 25 ns propagation delay and 25 MHz maximum clock frequency
• 20-pin PQCC surface-mount package
• TTL-compatible input/output levels

Programmable Logic Device Pld Applications

• Digital state machine implementations requiring registered outputs
• High-speed combinatorial and sequential logic circuits
• System interface buffering and protocol conversion
• Replacement for legacy discrete logic gates in industrial control systems

Programmable Logic Device Pld Procurement Notes

Verify the specific suffix 'B4' against official Vantis documentation to confirm pinout and electrical characteristics, as suffixes often denote temperature range or packaging variations. Ensure the source provides a valid datasheet confirming the registered output structure. Check for RoHS compliance status, as older PAL devices may not meet current environmental standards. Confirm availability through authorized distributors or surplus suppliers, noting that lead times may vary significantly for obsolete components.

Programmable Logic Device Pld Selection Notes

Select this component when a registered PAL solution with 8 inputs and 8 outputs is required. The 25 ns delay suits applications operating below 25 MHz. Compare against the non-registered PAL16R6 variant if flip-flop functionality is unnecessary. Verify voltage tolerance matches the 5 V system requirement. Consider package compatibility with existing PCB footprints for the 20-pin QCCJ form factor during design-in phases.

Programmable Logic Device Pld Part Context

Vantis Corporation was formed from the acquisition of Lattice Semiconductor's PLD business by AMD, which later spun off Vantis. This part belongs to the classic PAL series, predating CPLD technologies like MACH. It represents a standard fixed-function PLD used extensively in the 1990s for logic replacement before being superseded by more flexible FPGA and CPLD architectures.

Programmable Logic Device Pld Replacement Considerations

Direct pin-to-pin replacements may include the PAL16R6B4CNL or PAL16R6B4CNL variants depending on suffix definitions. For modern upgrades, consider CPLDs such as the MACH4000 series or FPGAs with equivalent I/O counts, though these require redesigning the logic function using HDL tools rather than simple substitution.