GAL22V10D-10QJ

Programmable Logic Device Pld Overview

The GAL22V10D-10QJ is a discontinued Simple Programmable Logic Device (SPLD) from Lattice Semiconductor, belonging to the GAL22V10D series. It utilizes E2CMOS technology and features ten output logic macrocells with a maximum propagation delay of 10 ns. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports an ambient temperature range of -40°C to +85°C for industrial grade applications. Packaged in a 28-pin PLCC, it offers full functional and parametric compatibility with standard bipolar and UVCMOS 22V10 devices.

Programmable Logic Device Pld Feature Summary

• E2CMOS Technology: Electrically erasable floating gate technology enabling high-speed reprogramming (<100ms erase time) and 20-year data retention.
• High Performance: Maximum propagation delay of 10 ns and a maximum operating frequency (fmax) of 125 MHz with no feedback.
• Flexible Architecture: Ten Output Logic Macrocells (OLMCs) configurable as registered or combinatorial I/O with individual product-term tri-state control.
• Power Efficiency: 50% to 75% power reduction compared to bipolar equivalents, with typical supply current (Icc) of 90 mA for low-power variants.

Programmable Logic Device Pld Applications

• DMA Control
• State Machine Control
• High Speed Graphics Processing
• Standard Logic Speed Upgrade

Programmable Logic Device Pld Procurement Notes

All devices in the GAL22V10 family have been officially discontinued per Product Change Notification (PCN). Verification of availability should focus on existing inventory from authorized distributors or secondary market suppliers, as new manufacturing has ceased. Ensure component authenticity and check for lead-free packaging options if required by specific assembly standards.

Programmable Logic Device Pld Selection Notes

Select the GAL22V10D-10QJ when replacement of legacy 22V10 designs is required with electrically reprogrammable logic. Verify that the 28-pin PLCC package fits the target footprint. Confirm that the 10 ns speed grade meets timing requirements, noting that faster variants like the -7LJI exist but may have different electrical characteristics. Ensure design compilers support the User Electronic Signature feature if utilized.

Programmable Logic Device Pld Part Context

The GAL22V10D-10QJ is part of the broader GAL22V10 family, which includes DIP, SOIC, and PLCC packages with varying speed grades (-4, -5, -7, -10, -15, -20, -25). The 'Q' suffix denotes Quarter Power consumption, while 'J' indicates the PLCC package. This device represents a transition from fuse-based PALs to reconfigurable CPLDs, offering higher density and flexibility than earlier GAL generations.

Programmable Logic Device Pld Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation due to the discontinuation status. Designers should evaluate modern Lattice CPLD families or other SPLD manufacturers for pin-compatible or functionally equivalent replacements.

Programmable Logic Device Pld FAQ

What is the maximum operating frequency for the GAL22V10D-10QJ?

The maximum clock frequency (fmax) is 125 MHz with no feedback, 83.3 MHz with internal feedback, and 55.5 MHz with external feedback.

How many product terms are available per macrocell?

The number of product terms varies by pin: pins 14 and 23 have 8 terms; pins 15 and 22 have 10 terms; pins 16 and 21 have 12 terms; pins 17 and 20 have 14 terms; and pins 18 and 19 have 16 terms.

Does the device include an electronic signature?

Yes, the GAL22V10 includes a 64-bit reprogrammable electronic signature memory for user-defined data such as ID codes or revision numbers, accessible regardless of the security cell state.