GAL16V8D-25QJI

Programmable Logic Device Pld Overview

The GAL16V8D-25QJNI is a discontinued Simple Programmable Logic Device (SPLD) from Lattice Semiconductor. It utilizes E2CMOS technology and features an architecture with 16 inputs, 8 outputs, and 8 macrocells. The device operates at a maximum propagation delay of 25 ns and supports a maximum frequency of 41.6 MHz. It functions within a supply voltage range of 4.5 V to 5.5 V and consumes up to 65 mA of operating current. The component is housed in a 20-pin PLCC package and is rated for industrial temperatures between -40°C and +85°C.

Programmable Logic Device Pld Feature Summary

• E2CMOS Technology: Electrically erasable floating gate technology enabling reprogrammability and high-speed erase cycles under 100ms.
• Flexible Architecture: Supports Registered, Complex, and Simple output logic macrocell modes to emulate various PAL devices.
• Active Pull-ups: All pins feature active pull-up resistors to minimize latch-up potential.
• Electronic Signature: Includes 64 bits of reprogrammable memory for user-defined identification data.

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 part number is officially discontinued per Product Change Notification PCN#13-10. No new units are manufactured by Lattice Semiconductor. Verification of authenticity is critical when sourcing from third-party distributors due to the device's obsolete status. Designers should confirm that existing inventory meets functional specifications before integration into production systems.

Programmable Logic Device Pld Selection Notes

Select this component only for legacy system maintenance or specific backward compatibility requirements. The GAL16V8D-25QJNI provides 16 inputs and 8 outputs with a 25 ns speed grade. Ensure the design accommodates the 20-pin PLCC package and the specified 4.5 V to 5.5 V power supply range. Consider modern FPGA alternatives for new designs given the discontinuation status.

Programmable Logic Device Pld Part Context

The GAL16V8D series represents a line of Generic Array Logic devices designed to replace standard bipolar PALs. The 'D' suffix indicates the low-power CMOS variant. The 'Q' denotes Quarter Power consumption, while 'J' specifies the PLCC package. The 'I' suffix identifies the Industrial temperature grade. This specific ordering code combines these attributes into a single industrial-grade, quarter-power PLCC device.

Programmable Logic Device Pld Replacement Considerations

Lattice Semiconductor has discontinued all GAL16V8 devices. No direct functional equivalents are provided by the manufacturer. Designers must evaluate third-party compatible SPLDs or migrate to modern Low Power FPGAs for new implementations.

Programmable Logic Device Pld FAQ

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

The maximum operating frequency is 41.6 MHz, calculated based on setup time and clock-to-output delay with internal feedback.

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

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

Can Pins 1 and 11 be used as dedicated inputs in Registered mode?

No, in Registered mode, Pin 1 is permanently configured as the common Clock input and Pin 11 is permanently configured as the common Output Enable.