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PAL16L8-7JC from AMD

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PAL16L8-7JC

Manufacturer: AMD

20-Pin TTL Programmable Array Logic

Partnumber Manufacturer Quantity Availability
PAL16L8-7JC,PAL16L87JC AMD 1443 In Stock

Description and Introduction

20-Pin TTL Programmable Array Logic The **PAL16L8-7JC** from **AMD (Advanced Micro Devices)** is a **Programmable Array Logic (PAL)** device designed for high-speed digital logic applications. As part of the **PAL16L8 series**, this component features a **7ns propagation delay**, making it suitable for performance-critical systems requiring rapid signal processing.  

Constructed with **20-pin ceramic DIP (Dual In-line Package)**, the PAL16L8-7JC offers **8 outputs with programmable I/O configurations**, enabling flexible integration into various circuit designs. Its architecture includes a **fixed OR array and programmable AND array**, allowing users to define custom logic functions through fuse programming.  

Key features include **compatibility with TTL (Transistor-Transistor Logic) levels**, **low power consumption**, and **high noise immunity**, ensuring reliable operation in industrial and embedded environments. The **7JC suffix** denotes its **commercial temperature range (0°C to 70°C)**, making it ideal for standard computing and control applications.  

While newer CPLDs and FPGAs have largely replaced PALs in modern designs, the PAL16L8-7JC remains relevant for legacy systems, prototyping, and educational purposes due to its simplicity and deterministic timing. Its **one-time programmable (OTP)** nature ensures stable performance once configured, though updates require hardware replacement.  

Engineers and hobbyists continue to utilize this component for its straightforward implementation of combinational and sequential logic, reinforcing its role in digital electronics history.

Application Scenarios & Design Considerations

20-Pin TTL Programmable Array Logic

Alternative Part Number

  • TIBPAL16L8-7CN --: Pin-compatible PAL16L8 device from TI with 7 ns speed grade in a DIP package, a common drop-in replacement for the AMD part.
  • TIBPAL16L8-10CN --: Same PAL16L8 function and pinout from TI; slightly slower 10 ns grade but widely available and electrically compatible for most designs.
  • PAL16L8BCN --: Generic PAL16L8 in a DIP package from an alternate vendor, functionally equivalent with compatible logic and pinout.
  • TIBPAL16L8-7CN --: Pin-compatible PAL16L8 device with 7 ns speed grade in a DIP package, direct functional replacement for the AMD part.
  • TIBPAL16L8-10CN --: Same PAL16L8 architecture and pinout; slightly slower 10 ns grade but widely available and electrically compatible in most designs.
  • ATF16V8B-7PC --: Generic 16V8 GAL device that emulates the PAL16L8 function, 7 ns speed, DIP package, and can be programmed as a drop-in substitute.

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