Datasheet > 54HSC

54HSC

更新时间： 2024-09-23 22:16:07

品牌	Logo	应用领域
DYNEX		/
页数	文件大小	规格书
10页	95K
描述
Radiation hard 16-Bit ParallelError Detection & Correction

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数据手册

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54HSC 数据手册

54HSC/T630

Radiation hard 16-Bit ParallelError

Detection & Correction

Replaces June 1999 version, DS3595-4.0

DS3595-5.0 January 2000

The 54HSC/T630 is a 16-bit parallel Error Detection and

Correction circuit. It uses a modified Hamming code to

generate a 6-bit check word from each 16-bit data word. The

check word is stored with the data word during a memory write

cycle. During a memory read cycle a 22-bit word is taken from

memory and checked for errors.

Single bit errors in data words are flagged and corrected.

Single bit errors in check words are flagged but not corrected.

The position of the incorrect bit is pinpointed, in both cases, by

the 6-bit error syndrome code which is output during the error

correction cycle.

Two bit errors are flagged but not corrected. Any

combination of two bit errors occurring within the 22-bit word

read from memory, (ie two errors in the 16-bit data word, two

bits in the 16-bit check word or one error in each) will be

correctly identified.

The gross errors of all bits, low or high, will be detected.

The control signals S1 and S0 select the function to be

performed by the EDAC They control the generation of check

words and the latching and correction of data (see table 1)

When errors are detected, flags are placed on outputs SEF

and DEF (see table 2).

Figure 1: Block Diagram

FEATURES

■ Radiation Hard:

Dose Rate Upset Exceeding 3x10¹⁰Rad(Si)/sec

Total Dose for Functionality Upto 1x10⁶Rad(Si)

■ High SEU Immunity, Latch Up Free

■ CMOS-SOS Technology

■ All Inputs and Outputs Fully TTL Compatible (54HST630)

or CMOS Compatible (54HSC630)

■ Low Power

■ Detects and Corrects Single-Bit Errors

■ Detects and Flags Dual-Bit Errors

■ High Speed:

Write Cycle - Generates Checkword In 40ns Typical

Read Cycle - Flags Errors In 20ns Typical

1/10

12 3 4 5 6 7...10

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与54HSC相关器件

型号	品牌	获取价格	描述	数据表
54HSC/TSERIES	ETC	获取价格	Radiation Hard High Speed CMOS/SOS Logic
54HSC00CB	ETC	获取价格	Quad 2-input NAND Gate
54HSC00CS	ETC	获取价格	Quad 2-input NAND Gate
54HSC00FB	ETC	获取价格	Quad 2-input NAND Gate
54HSC00FE	DYNEX	获取价格	NAND Gate, HSC Series, 4-Func, 2-Input, CMOS, CDFP14
54HSC00FL	DYNEX	获取价格	NAND Gate, HSC Series, 4-Func, 2-Input, CMOS, CDFP14
54HSC00FS	ETC	获取价格	Quad 2-input NAND Gate
54HSC00LB	DYNEX	获取价格	NAND Gate, HSC Series, 4-Func, 2-Input, CMOS, CQCC20
54HSC02CB	ETC	获取价格	Quad 2-input NOR Gate
54HSC02CS	ETC	获取价格	Quad 2-input NOR Gate