Programmable Logic

FPGA

Field Programmable Gate Array

 

The Microchip AT40KAL Series co-processor FPGAs range from 5K to 50K usable gates and are designed for high-density, compute-intensive DSP and other fast logic designs. The AT40KAL family solves the Logic vs. SRAM trade-off problem by providing fast, flexible, distributed 10 ns FreeRAM™ without using valuable logic resources. Structured logic functions, including variable array multipliers, can be implemented directly in core cells without using any bussing resources, providing dramatic improvements in speed, utilization, power and system cost. Microchip FPGA technology is now available as an embedded core. The first family of products based on this technology is the FPSLIC™ family. FPSLIC (Field Programmable System Level Integrated Circuits) devices combine 5 – 50K of AT40KAL FPGA with up to 36K of SRAM and a 25 MHz AVR MCU.

 

The AT40KAL family are FPGAs with the ability to implement Cache Logic design, where part of the FPGA can be reprogrammed without loss of register data, while the remainder of the FPGA continues to operate without disruption. This is ideal for building adaptive filters, variable coefficient multipliers and other designs where the datapath can change to increase system performance.

 

The Microchip Mature AT6000 Series FPGAs as well as the AT40K [5V version] are designed to speed up processor-based system performance while lowering power, part count and cost. The massive register counts (1,024 to 6,400 registers) make them ideal for use as re-configurable DSP co-processors.

 

All Microchip FPGAs can be designed using industry-standard EDA tools such as Mentor’s Precision Synthesis for VHDL and Verilog on a PC platform. Microchip offers an Integrated Development System [IDS] software that enables place and Route while enabling Designers to synthesize their designs using Industry standard Synthesis tools.

 

Microchip has a family of FPGA Serial Configuration EEPROMs in densities ranging from 256 K to 32 Mb. This unique family of products offers in-system reprogrammability, as well as the ability to program using a standard programmer. Now, not only is the FPGA reprogrammable in-system; so is the configuration memory.

 

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FPGA Configuration Memory

FPGA Configuration Memory

 

The Microchip AT17F Flash based configuration Family can be used to configure low-cost SRAM FPGAs as well as higher density high performance FPGAs from Xilinx and Altera. The AT17F Family is offered in densities of 4Mb up to 16Mb and can be used to configure both Spartan and Virtex family of FPGAs offered by Xilinx. This family has In-System Programmable (ISP) capability and can be used as data storage for the most popular FPGAs and programmable SoCs. The Microchip AT17F family is supported with easy to use Configuration Programming Software (CPS) and is recommended for new FPGA designs. The Microchip small form factor packages are ROHS compliant and reduce the amount of board space and at the same time help accelerate time to market by providing a system level drop in solution for popular FPGA based systems.

 

The popular Microchip AT17LV FPGA Configurator EEPROM Memories can be used with the Microchip FPSLIC™ devices and any SRAM-based FPGA from any supplier, including the Microchip AT40KxxAL FPGA Family, as well as products from Xilinx, Altera. They come in densities from 256K to 4Mb and are reprogrammable at 5V or 3.3V, using an industry-standard 2-wire serial bus. New small footprint 8-pin packages have recently been added to this family of devices.

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Programmable Logic Overview

Programmable Logic

 

Microchip now has a presence in the Programmable logic space after acquiring Atmel in 2016. With  two decades of programmable logic experience, Microchip offers a variety of low cost and low power programmable logic products. Widely used in Industrial applications for Control and glue logic, these PLDs allow for quick design cycle iterations.  Microchip offers non-volatile EPLDs (Simple and Complex PLDs) that are low in cost and widely available in an array of packages. These products are easy to use and can be designed using easy to use software tools.

 

SPLD/CPLD

 

The Microchip EPLD product line comprises two major categories: simple programmable logic devices (SPLDs) and the higher density complex programmable logic devices (CPLDs). PLDs can be used for a Multitude of applications for the Industrial, Medical, Consumer and Test Measurement markets as well as for Military.

 

Field Programmable Gate Array

 

The Microchip AT40K and AT40KAL Series co-processor FPGAs range from 5K to 40K usable gates and are designed for high-density, compute-intensive DSP and other fast logic designs. Microchip also offers an AT40K10 FPGAs in die form that can be used for Military applications.

 

FPGA Configuration Memory

 

The Microchip AT17LV EEPROM based and AT17F Flash based configuration memory devices can be used to configure low-cost SRAM FPGAs as well as higher density, high-performance FPGAs from Xilinx and Altera.

 

SPLD/CPLD

SPLD/CPLD

 

The Microchip EPLD product line comprises two major categories: simple programmable logic devices (SPLDs) and the higher density complex programmable logic devices (CPLDs).

 

Microchip SPLDs: Industry Standard

 

The Microchip SPLD products consist of industry standard 16V8 and 22V10s in a variety of voltage and power-saving options. Microchip offers low-voltage, zero-power and quarter power versions as well as our proprietary “L” automatic power down low-power devices including the Battery Friendly ATF22LV10CQZ. All popular packages are supported in addition to the Microchip-only, TSSOP package – the smallest package offered for any SPLD device. All versions are EE-based for high-reliability and easy re-programming and are supported by all popular third party programmers.

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Microchip CPLDs: Industry Standard Compatible

 

The ATF15xxAS/ASL/ASV/ASVL CPLD family offers pin-compatible supersets of the popular Altera 7000 and 3000 series devices ranging from 32 to 128 macrocells with propagation delays from 7.5 to 15 ns for 5V standard power versions and 15 ns for 3.3V versions. Microchip’s proprietary low-power (“L”) versions use Input Transition Detection (ITD) to power down the device automatically when nothing is switching. All devices also support JTAG in-system programming (ISP).

 

The Logic Doubling™ features of the ATF15xx family make these products ideal for new designs. The ATF15xx family offers the most powerful switch matrix and routing resources of any CPLD while also supporting multiple independent feedbacks, individual output enable, global clear and D/T/latch configurable flip-flops. More global clock pins, a programmable pin-keeper and the ability to realize two latches per macrocell are further examples of the enhanced features available from this CPLD product family.

 

Microchip CPLDs can be used for I/O expansion as well as for memory, control and Interfacing with different types of memories such as compact Flash or mobile SDRAM.

 

Converting an Altera EPM7000 series design is easy with Microchip’s push button POF2JED software utility that will generate an industry standard JEDEC programming file from an Altera POF file. An Application note “ATF15xx Product Family Conversion” provides details of the conversion process. The POF2JED software is available at no charge.

 

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Proprietary CPLDs

 

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

 

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