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部品型式

IDT49C465APQF

製品説明
仕様・特性

IDT49C465/A 32-BIT FLOW-THRU ERROR DETECTION AND CORRECTION UNIT COMMERCIAL TEMPERATURE RANGE 64-BIT FLOW-THRU ERROR DETECTION AND CORRECTION UNIT DESCRIPTION: FEATURES: − − − − − − − − − − − − − IDT49C465 IDT49C465A 32-bit wide Flow-thruEDC™ unit, cascadable to 64 bits Single-chip 64-bit Generate Mode Separate system and memory buses On-chip pipeline latch with external control Supports bidirectional and common I/O memories Corrects all single-bit errors Detects all double-bit errors and some multiple bit errors Error Detection Time — 12ns Error Correction Time — 14ns On chip diagnostic registers Parity generation and checking on system data bus Low power CMOS — 100mA typical at 20MHz 144-pin PGA and PQFP packages The IDT49C465/A is a 32-bit, two-data bus, Flow-thruEDC unit. The chip provides single-error correction and two and three bit error detection of both hard and soft memory errors. It can be expanded to 64-bit widths by cascading two units, without the need for additional external logic. The Flow-thruEDC has been optimized for speed and simplicity of control. The EDC unit has been designed for use in either of two configurations in an error correcting memory system. The bidirectional configuration is most appropriate for systems using bidirectional memory buses. A second system configuration utilizes external octal buffers, and is well-suited for systems using memory with separate I/O buses. The IDT49C465/A supports partial word writes, pipelining, and error diagnostics. It also provides parity protection for data on the system side. SIMPLIFIED FUNCTIONAL BLOCK DIAGRAM M D 0-31 Correct Logic M em ory Checkbit Generator Syndrom e G enerator MD Latch Checkbit Latch CBI 0-7 ERR Expansion Logic MLE Mux Detect Logic MERR Pipeline Latch PCBI 0-7 SD 0-31 CONTROL CONTROL SD Latch Byte M ux System Checkbit Generator SLE PLE M ux CBO 0-7 CONTROL CONTROL The IDT logo is a registered trademark of Integrated Device Technology, Inc. COMMERCIAL TEMPERATURE RANGE NOVEMBER 2000 1 c 1999 Integrated Device Technology, Inc. DSC-2552/9

ブランド

IDT

会社名

Integrated Device Technology, Inc.

本社国名

U.S.A

事業概要

通信・コンピュータ・一般向け機器などで使用する低消費電力で高性能なアナログ-デジタル混在半導体部品の設計と製造を行っている。主にOEM製品を扱っている。 RF(無線)、高性能タイミング、メモリーインタフェース、リアルタイムインターコネクト、オプティカルインターコネクト、ワイヤレス給電、スマートセンサーを製造するメーカー

供給状況

 
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