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Simplify Product Development With Our Electrically Programmable Logic Devices


Our portfolio of Electrically Programmable Logic Devices (EPLDs) includes two major product categories: Simple Programmable Logic Devices (SPLDs) and higher density Complex Programmable Logic Devices (CPLDs). We also offer software and hardware tools that simplify the development of applications using our SPLDs and CPLDs.

Industry-Standard SPLDs


We are the sole manufacturers of PAL-based, industry-standard 16V8 and 22V10 SPLDs. We also offer a variety of device variants to support different VCC voltages and power-saving options. We offer low-power and zero-power device variants that automatically switch into or out of power-down (standby) mode as well as quarter-power device variant to lower the power consumption of our SPLDs. We also offer low-voltage device variants for 3V applications.

These devices are available in many popular package types, including the Microchip-only TSSOP package, which is the smallest package offered for any SPLD device. All our SPLDs are EE-based for high reliability and easy reprogramming and are supported by our free WinCUPL design software. These SPLDs can also be programmed using popular third-party programmers. Visit our PLD Design Resources page for information about software and hardware tools for our SPLDs.

Industry-Standard CPLDs


Our EEPROM-based CPLDs use PAL architectures and are well suited for applications that require instant-on, fast-parallel logic operations and deterministic timing such as power, reset and wake control, waveform generation, encoding, decoding, I/O expansion, fault management, safety interlock chain, and timing and phase generation.

The ATF15xxAS/ASL/ASV/ASVL CPLDs are pin-compatible supersets of the popular Altera MAX7000/3000 series devices. They range from 32 to 128 macrocells with propagation delays from 7.5 to 25 ns. They are available in standard and low-power versions and support 3.3V and 5V VCC.

Our proprietary low-power L devices use Input Transition Detection (ITD) to automatically switch to power-down (standby) mode when all of the input and I/O pins are in static logic states. This family of CPLDs also supports JTAG In-System Programming (ISP) and Boundary Scan Test (BST).

The ATF15xx family of CPLDs delivers enhanced functionality and flexibility without requiring any additional design effort. The Logic Doubling architecture allows you to implement double the latch functions per macrocell, enabling you to use a smaller device or providing spare room for revisions. This family of devices also offers the most powerful switch matrix and routing resources of any CPLD while also supporting multiple independent feedbacks, individual output enable, global clear, D/T/latch-configurable flip-flops, more global clock pins and a programmable pin keeper circuit for bus interfacing.

Converting an Altera MAX7000/3000 series design is easy with our free, push-button POF2JED software utility that generates an industry-standard ATF15xx JEDEC programming file from an Altera POF file. Visit our PLD Design Resources page for information about software and hardware tools for our SPLDs.

Proprietary CPLDs


Our ATF750C/CL and ATF2500C CPLDs have a unique architecture that enables you to pack in more logic in a fully interconnected manner. The ATF750C has twice the logic of a standard 22V10 in a pinout-compatible 24- or 28-pin package. The ATF750C is an excellent choice for 22V10 designs that need a bit more logic than is offered in a 22V10 device but need to maintain the 22V10 pinout. The ATF2500C is a very-high-density (2500 usable gates), 44-pin CPLD that is suitable for the most difficult, 44-pin designs. The ATF2500C (electrically erasable) is a replacement for the ATV2500B/BQ/BQL/BL in commercial, industrial and military temperature-grade offerings.

Military EPLDs


We are committed to producing high-performance products for military and aerospace applications. Our military EPLD products combine the reliability and high performance required for military applications and are compliant with the MIL-DSCC Class B flow. The ATF22V10C and ATF750C devices are recommended for military designs.

We also support the DSCC Standard Military Drawing (SMD) program. Each SMD part number that we supply has an “/883” at the end of the part number. Our DSSC SMD-qualified EPLD products range from the popular ATF22V10B to the high-density ATF750C. The ATF2500C device, which replaced the ATV2500B/BQ/BQL/BL, is offered as a military temperature-tested device only.

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