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FLEX 10KA-1 Devices: Fastest HighDensity Devices Available
increasing bandwidth system performance continue challenge system designers, programmable logic vendors race produce fastest, high-density devices. example, 10KA-1 devices offer more than twice system performance than original FLEX 10K-3 devices fastest high-density programmable logic devices (PLDs) available. This technical brief describes FLEX 10KA-1 device performance. FLEX 10KA-1 Device Performance applications where enhanced speed critical, FLEX 10KA-1 devices provide level system performance. Table shows FLEX 10KA-1 device performance specific benchmark applications. Table FLEX 10KA-1 Performance
Application 8-bit, 16-tap finite impulse response (FIR) filter a16450 universal asynchronous receiver/ transmitter (UART) MegaCorefunction 16-to-1 multiplexer read cycle write cycle
Note:
Source: Altera Applications Engineering
Note
FLEX 10KA-1 Performance
Performance Comparison FLEX 10KA-1 Devices XC4000XL-09 Devices Altera Applications tested FLEX 10KA-1 devices using metrics listed below. results these tests summarized compared against results published Xilinx Application Brief XBRF015 (Speed Metrics High-Performance FPGAs), which compares Xilinx XC4000XL-09 devices (the fastest speed grade XC4000XL device available) with FLEX 10KA-2 devices. FLEX 10KA-1 devices approximately 20-30% faster than FLEX 10KA-2 devices. performance metric numbers represent register-to-register delays.
frequency n-to-1 multiplexer n-bit wide term n-level combinatorial logic Chained adders
Frequency
frequency metric clock-to-output delay (tCO) input data setup time (tSU). Table shows external frequency comparison between FLEX 10KA-1 XC4000XL-09 devices. global clock buffer clock distribution delays included when determining external frequency.
M-TB-038-01
ALTERA MEGAFUNCTION PARTNERS PROGRAM
Table External Frequency Results
Frequency External EPF10K100A-1
XC4062XL-09
n-to-1 Multiplexer
n-to-1 multiplexer metric includes 64:1 64:32 multiplexers with registered inputs outputs. multiplexers FLEX 10KA-1 devices implemented using lpm_mux function from library parameterized modules (LPM). multiplexer results XC4000XL-09 devices shown Xilinx Application Brief XBRF015 (Speed Metrics High-Performance FPGAs). Figure shows multiplexer performance results with FLEX 10KA-1 XC4000XL-09 devices.
Figure Multiplexer Performance Results
Maximum Frequency (MHz)
FLEX 10KA-1 Devices
64:32
XC4000XL-09 Devices
64:16
64:8
64:4
64:2
64:1
Multiplexer Size
n-Bit Wide Term
n-bit wide term metric measures performance gates that bits wide with registered inputs outputs. wide comparator example typical function that requires large gate usage. Figure compares FLEX 10KA-1 XC4000XL-09 device results.
Figure AND- Term Performance Results
FLEX 10KA-1 Devices
Maximum Frequency (MHz)
XC4000XL-09 Devices
Term Width
n-Level Combinatorial Logic
n-level combinatorial logic metric measures logic performance that levels deep. Each level refers four, 4-input look tables (LUTs). four LUTs increase fan-out. increase number levels, more banks LUTs added. each case, inputs outputs registered. Figure shows performance results with FLEX 10KA-1 XC4000XL-09 devices.
Figure Combinatorial Performance Results
Maximum Frequency (MHz)
FLEX 10KA-1 Devices
XC4000XL-09 Devices
Number Logic Levels
Chained Adders
chained adders metric 16-, 24-, 32-bit adders chained together. various-sized adders give indication device performance using complex functions. chains levels deep, inputs outputs registered. Figure shows adder performance results with FLEX 10KA-1 XC4000XL-09 devices.
Figure Adder Performance Results
FLEX 10KA-1 Devices XC4000XL-09 Devices
Maximum Frequency (MHz)
Adder Type
Note:
width adder depth level.
Device Pricing FLEX 10KA devices provide higher performance significantly lower price than XC4000XL devices. Table shows 100-unit list pricing FLEX 10KA-1 XC4000XL-09 devices. Table 100-Unit List Pricing FLEX 10KA-1 XC4000XL-09 Devices
Device XC4062XL-09BG432C EPF10K100ABC356-1
Note:
Source: Altera Xilinx First Quarter 1998 North American distributor price lists.
Density 4,608 equivalent logic elements (LEs) 4,992 plus 24,576 embedded bits
100-Unit Price, Note $1,520 $398
Conclusion With introduction FLEX 10KA-1 devices, system designers obtain higher levels system performance. addition offering much higher system performance, FLEX 10KA-1 devices cost significantly less than competing FPGAs.
documents listed below provide more detailed information available Altera 1998 Data Book.
FLEX Embedded Programmable Logic Family Data Sheet Application Note (Understanding FLEX Timing)
request documents from:
Altera Literature Services (888) 3-ALTERA World-wide http://www.altera.com Your local Altera sales representative
Copyright 1998 Altera Corporation. Altera, FLEX, FLEX 10K, FLEX 10KA, EPF10K100, EPF10K100A, MegaCore trademarks and/or service marks Altera Corporation United States and/or other countries. Other brands products trademarks their respective holders. rights reserved.

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