GAL16LV8C-15LJN

Programmable Logic Device Pld Overview

The GAL16LV8C-15LJN is a discontinued Generic Array Logic (GAL) programmable logic device manufactured by Lattice Semiconductor. It utilizes low voltage E2CMOS technology and operates at 3.3V with 5V tolerant inputs, allowing interface with standard 5V TTL devices. The component features eight output logic macrocells within a 20-pin PLCC package. Electrical specifications for the -15 speed grade include a maximum propagation delay of 15 ns and a maximum clock frequency of 45.5 MHz with external feedback. The device supports reprogrammable cells with high-speed electrical erasure.

Programmable Logic Device Pld Feature Summary

• Low Voltage E2CMOS Technology: Operates at 3.3V with 5V compatible inputs for GAL16LV8C variants.
• Reprogrammable Architecture: Features eight output logic macrocells with 100% tested/100% yields and 20-year data retention.
• High Speed Performance: -15 speed grade offers a maximum propagation delay of 15 ns and fmax of 45.5 MHz.
• Power-Up Reset: Includes circuitry to preload all registers to a known state upon power-up.

Programmable Logic Device Pld Applications

• Glue logic for 3.3V systems
• DMA control circuits
• State machine control
• Standard logic speed upgrade

Programmable Logic Device Pld Procurement Notes

All devices in the GAL16LV8 datasheet have been officially discontinued per Product Change Notification (PCN) #09-10. The GAL16LV8C-15LJN is no longer in active production. Verification of current availability requires consulting authorized distributors or secondary market suppliers such as Rochester Electronics, as original manufacturer inventory is exhausted.

Programmable Logic Device Pld Selection Notes

Select the GAL16LV8C variant when interfacing with both 3.3V and 5V signal levels is required. The -15 speed grade provides a 15 ns maximum propagation delay. Ensure the design accommodates the 3.3V supply voltage range (+3.0V to +3.6V). Note that the GAL16LV8D variant includes active pull-ups on all pins, whereas the GAL16LV8C does not.

Programmable Logic Device Pld Part Context

The GAL16LV8 series represents Lattice's low-power evolution of the classic 16V8 architecture. The 'C' suffix denotes the version with 5V tolerant inputs suitable for mixed-voltage environments, while 'JN' indicates a lead-free PLCC package. This component belongs to the broader family of Electrically Erasable Programmable Logic Devices (EPLDs) designed for complex digital logic replacement.

Programmable Logic Device Pld Replacement Considerations

As the device is discontinued, direct replacements are unavailable from the original manufacturer. Designers should evaluate modern CPLD or FPGA alternatives from Lattice (e.g., MachXO series) or other vendors that offer similar pin counts and logic capacity with updated manufacturing support.

Programmable Logic Device Pld FAQ

What is the difference between GAL16LV8C and GAL16LV8D?

The GAL16LV8C features 5V compatible inputs, allowing it to interface with standard 5V TTL devices. The GAL16LV8D includes active pull-ups on all pins, ensuring unused inputs float to a logical high, whereas the GAL16LV8C does not have these internal pull-ups.

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.

What is the maximum operating supply voltage for the GAL16LV8C?

The recommended operating supply voltage (VCC) for commercial devices is +3.0V to +3.6V. The absolute maximum rating allows up to +5.6V, but functional operation is not guaranteed above the recommended range.