GAL22V10D-15QJN

Programmable Logic Device Pld Overview

The Lattice Semiconductor GAL22V10D-15QJN is a discontinued Simple Programmable Logic Device (SPLD) based on E2CMOS technology. It features 22 inputs, 10 outputs, and 10 macrocells within a 28-pin PLCC package. The device operates at a maximum propagation delay of 15 ns with a typical supply current of 75 mA. It supports a voltage range of 4.5 V to 5.5 V and functions across an industrial temperature range of -40°C to +85°C. Key architectural elements include active pull-ups, asynchronous reset, synchronous preset, and a user-programmable electronic signature.

Programmable Logic Device Pld Feature Summary

• E2CMOS Technology: Electrically erasable floating gate architecture enabling rapid reconfiguration and high-speed electrical erasure under 100 ms.
• Flexible Macrocells: Ten Output Logic Macrocells (OLMCs) configurable for registered or combinatorial I/O modes with individual polarity control.
• Active Pull-ups: Built-in active pull-up circuits on all pins ensure floating inputs default to a logic high state.
• Electronic Signature: Integrated 64-bit reprogrammable memory for user-defined identification codes or revision tracking.

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#13-10. No new production units are available from the manufacturer. Verification of existing inventory should be conducted through authorized distributors or surplus suppliers, noting that availability is limited and subject to stock depletion.

Programmable Logic Device Pld Selection Notes

Select this part only if legacy compatibility with standard 22V10 fuse maps is required. Ensure designs account for the 15 ns propagation delay and 75 mA typical supply current. Verify that the 28-pin PLCC footprint matches the target PCB layout, as surface-mount DIP alternatives exist within the same family.

Programmable Logic Device Pld Part Context

The GAL22V10 series represents a high-performance CMOS evolution of the classic bipolar 22V10 devices. It offers significant power reduction compared to bipolar counterparts while maintaining full functional and parametric compatibility. The 'Q' suffix denotes Quarter Power consumption, and 'N' indicates lead-free packaging compliance.

Programmable Logic Device Pld Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source material due to the discontinuation status. Designers should consult Lattice Semiconductor for migration strategies to modern CPLD families.

Programmable Logic Device Pld FAQ

How does the GAL22V10 handle unused inputs?

Unused inputs and tri-stated I/O pins should be connected to an adjacent active input, Vcc, or ground to improve noise immunity and reduce supply current, despite the presence of internal active pull-ups.

What is the function of the Electronic Signature?

The Electronic Signature provides 64 bits of reprogrammable memory accessible regardless of the security cell state, intended for storing user IDs, revision numbers, or inventory control data.

Can the GAL22V10 be programmed with standard tools?

Yes, the device can be programmed using any qualified device programmer supporting the standard 22V10 JEDEC map, though specific Lattice-approved programmers are recommended for full feature access.