PLA vs PAL Comparison

Description

This simulation provides a side-by-side comparison of PLA (Programmable Logic Array) and PAL (Programmable Array Logic) architectures, highlighting the key difference: PLA has both arrays programmable while PAL has a fixed OR array.

Learning Objectives

Bloom Level: Analyze (L4)

• Compare PLA and PAL architectures side by side
• Identify which arrays are programmable vs fixed
• Analyze the trade-offs between flexibility and speed
• Understand why PAL is faster but less flexible than PLA

How to Use

1. Toggle inputs A, B to see how both architectures evaluate
2. Click crosspoints in programmable arrays (marked with X)
3. Notice the PAL OR array connections are fixed (cannot be changed)
4. Compare the structural differences between the two devices

References

• Unit 11: Programmable Logic Devices - PLA vs PAL