GAL16V8ZD-15QS

Programmable Logic Device Pld Overview

The GAL16V8ZD-15QS is a Simple Programmable Logic Device (SPLD) belonging to the GAL16V8 family, manufactured by Lattice Semiconductor. It utilizes E2CMOS technology and features an architecture with 16 inputs and 8 outputs. The device operates at a maximum clock frequency of 45.5 MHz with a specified propagation delay of 15 ns. It is housed in a 20-pin PLCC package. This component is classified as a mature product within the manufacturer's portfolio.

Programmable Logic Device Pld Feature Summary

• E2CMOS Technology: Utilizes Electrically Erasable CMOS process for reprogrammability and high performance.
• Logic Capacity: Contains 64 product terms across eight output logic macrocells.
• I/O Configuration: Provides 16 dedicated input pins and 8 registered output pins.
• Package Type: Supplied in a 20-pin Plastic Leaded Chip Carrier (PLCC).

Programmable Logic Device Pld Applications

• State Machine Control
• DMA Control
• Standard Logic Speed Upgrade

Programmable Logic Device Pld Procurement Notes

The GAL16V8ZD-15QS is designated as a discontinued or mature product. Official production has ceased, and availability is limited to distributor stock or secondary market sources. Verification of part authenticity and condition is required due to the end-of-life status. Designers should consult Product Change Notifications (PCNs) for historical discontinuation details.

Programmable Logic Device Pld Selection Notes

This device serves as a drop-in replacement for legacy bipolar PAL devices requiring electrical erasure capabilities. When selecting this SPLD, verify that the 15 ns speed grade meets system timing requirements. Consider modern Lattice MachXO or CrossLink series for new designs to ensure long-term supply continuity and enhanced features such as non-volatile configuration.

Programmable Logic Device Pld Part Context

The GAL16V8 series represents a transition from fuse-based PLDs to electrically erasable devices. The 'ZD' suffix typically denotes specific temperature or reliability grades within the GAL16V8D line. The 'QS' indicates the 20-pin PLCC package variant. These devices were widely used before the dominance of low-power FPGAs.

Programmable Logic Device Pld Replacement Considerations

Lattice recommends evaluating the MachXO or CrossLink families for new designs. Specific cross-reference substitutes are not publicly listed; engineers must perform functional equivalence verification against target application requirements.