GAL16V8D-25QP

Programmable Logic Device Pld Overview

The GAL16V8D-25QP is a discontinued high-performance Electrically Erasable Programmable Logic Device (PLD) manufactured by Lattice Semiconductor. It utilizes E2CMOS technology to provide reconfigurable logic within a 20-pin PLCC package. The device features an 8-output architecture with programmable Output Logic Macrocells (OLMCs) supporting simple, complex, and registered modes. Key electrical specifications include a maximum propagation delay of 25 ns, a typical operating supply current of 45 mA for the quarter-power variant, and operation over a commercial temperature range of 0°C to +75°C.

Programmable Logic Device Pld Feature Summary

• E2CMOS Technology: Supports high-speed electrical erasure in under 100ms and retains data for over 20 years.
• Flexible OLMC Architecture: Configurable as simple, complex, or registered logic to emulate various PAL devices.
• Active Pull-ups: All pins feature active pull-up resistors to minimize latch-up risks.
• Electronic Signature: Includes 64 bits of reprogrammable memory for user identification.

Programmable Logic Device Pld Applications

• DMA Control
• State Machine Control
• High Speed Graphics Processing

Programmable Logic Device Pld Procurement Notes

This component is officially discontinued per Product Change Notification (PCN). No new units are available from Lattice Semiconductor. Verification of existing stock should be conducted through authorized distributors or secondary market suppliers, noting that availability is limited to remaining inventory.

Programmable Logic Device Pld Selection Notes

Designers requiring this specific 25 ns speed grade and PLCC package must account for the discontinuation status. Alternative selection should focus on modern low-power FPGAs or verify if legacy inventory meets project timelines. Ensure compiler software supports the GAL16V8 device type for legacy design migration.

Programmable Logic Device Pld Part Context

The GAL16V8 series represents Lattice's Generic Array Logic line, bridging the gap between fixed-function logic and field-programmable gate arrays. The 'D' suffix indicates the second generation of the device family, while 'Q' denotes the quarter-power consumption variant.

Programmable Logic Device Pld Replacement Considerations

No direct public substitute part numbers are listed in the datasheet. Designers should consult Lattice Semiconductor for modern FPGA equivalents suitable for replacing discontinued PLDs.

Programmable Logic Device Pld FAQ

What is the maximum clock frequency for the GAL16V8D-25QP?

The maximum clock frequency with no feedback is 41.6 MHz.

How many product terms are available per output in registered mode?

Registered outputs have eight product terms per output, while I/O configurations have seven.

Can the GAL16V8D-25QP emulate standard PAL devices?

Yes, it emulates 20-pin PAL devices with full function, fuse map, and parametric compatibility.