GAL16V8D-25QJNI

Programmable Logic Device Pld Overview

The GAL16V8D-25QJNI is a discontinued Simple Programmable Logic Device (SPLD) from Lattice Semiconductor. It utilizes high-performance E2CMOS technology to provide electrically erasable and reprogrammable logic capabilities. The device features 16 input lines and 8 output lines, housed in a 20-pin PLCC package. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an industrial temperature range of -40°C to +85°C. The maximum propagation delay is specified at 25 ns, with a typical operating current of 65 mA for the quarter-power variant.

Programmable Logic Device Pld Feature Summary

• High Performance E2CMOS Technology: Offers fast electrical erase times under 100 ms and data retention exceeding 20 years.
• Reconfigurable Architecture: Features eight Output Logic Macrocells (OLMCs) supporting simple, complex, and registered modes.
• PAL Emulation: Provides full function, fuse map, and parametric compatibility with standard PAL devices.
• Active Pull-ups: Includes active pull-up resistors on all pins to ensure defined states.

Programmable Logic Device Pld Applications

• DMA Control
• State Machine Control
• High Speed Graphics Processing
• Standard Logic Speed Upgrade

Programmable Logic Device Pld Procurement Notes

This component has been officially discontinued by Lattice Semiconductor per Product Change Notification PCN#13-10. Availability is restricted to existing inventory or secondary market sources. Verification of authenticity and physical condition is critical when sourcing from non-original distributors due to the end-of-life status.

Programmable Logic Device Pld Selection Notes

Select this part only if legacy design compatibility with specific PAL architectures is required. The -25 speed grade indicates a 25 ns maximum propagation delay. Ensure the system design accommodates the industrial temperature range (-40°C to +85°C) and the 5V supply voltage requirements. Consider modern FPGA alternatives for new designs given the discontinuation.

Programmable Logic Device Pld Part Context

The GAL16V8D series belongs to Lattice's Generic Array Logic family, designed to replace fixed-function PALs with reprogrammable flexibility. The 'D' suffix denotes the low-power CMOS version, while 'Q' indicates the quarter-power variant. The 'JN' suffix specifies the lead-free PLCC-20 package. This device represents a mature technology line now superseded by newer programmable logic families.

Programmable Logic Device Pld Replacement Considerations

No direct public substitute part numbers are listed in the official documentation. Designers should evaluate modern Lattice MachXO or CrossLink FPGA families for functional equivalents, noting differences in architecture, I/O counts, and programming interfaces.

Programmable Logic Device Pld FAQ

What is the maximum operating frequency for the GAL16V8D-25QJNI?

The maximum clock frequency with no feedback is 41.6 MHz. With internal feedback, it is 40 MHz, and with external feedback, it is 37 MHz.

How many product terms are available per output macrocell?

In registered mode, registered outputs have eight product terms, while I/Os have seven. In complex and simple modes, outputs typically utilize up to eight product terms.

Can the GAL16V8D-25QJNI be erased and reprogrammed?

Yes, the device uses E2CMOS technology allowing for electrical erasure in less than 100 ms and reprogramming. It supports over 100 erase/write cycles.