Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

IDT49C460 Datasheet(PDF) 1 Page - Integrated Device Technology

Part No. IDT49C460
Description  32-BIT CMOS ERROR DETECTION AND CORRECTION UNIT
Download  32 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  IDT [Integrated Device Technology]
Homepage  http://www.idt.com
Logo 

IDT49C460 Datasheet(HTML) 1 Page - Integrated Device Technology

 
Zoom Inzoom in Zoom Outzoom out
 1 / 32 page
background image
FEATURES:
• Fast
Detect
Correct
— IDT49C460E
10ns (max.)
14ns (max.)
— IDT49C460D
12ns (max.)
18ns (max.)
— IDT49C460C
16ns (max.)
24ns (max.)
— IDT49C460B
25ns (max.)
30ns (max.)
— IDT49C460A
30ns (max.)
36ns (max.)
— IDT49C460
40ns (max.)
49ns (max.)
• Low-power CMOS
— Commercial: 95mA (max.)
— Military: 125mA (max.)
• Improves system memory reliability
— Corrects all single bit errors, detects all double and some
triple-bit errors
• Cascadable
— Data words up to 64-bits
• Built-in diagnostics
— Capable of verifying proper EDC operation via software
control
• Simplified byte operations
— Fast byte writes possible with separate byte enables
• Functional replacement for 32- and 64-bit configurations of
the AM29C60 and AM29C660
• Available in PGA, PLCC and Fine Pitch Flatpack
• Military product compliant to MIL-STD-883, Class B
• Standard Military Drawing #5962–88533
Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
AUGUST 1995
©1995 Integrated Device Technology, Inc.
11.6
DSC-9017/8
32-BIT CMOS
ERROR DETECTION
AND CORRECTION UNIT
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
DESCRIPTION:
The IDT49C460s are high-speed, low-power, 32-bit Error
Detection and Correction Units which generate check bits on
a 32-bit data field according to a modified Hamming Code and
correct the data word when check bits are supplied. The
IDT49C460s are performance-enhanced functional replace-
ments for 32-bit versions of the 2960. When performing a read
operation from memory, the IDT49C460s will correct 100% of
all single bit errors and will detect all double bit errors and
some triple bit errors.
The IDT49C460s are easily cascadable to 64-bits. Thirty-
two-bit systems use 7 check bits and 64-bit systems use 8
check bits. For both configurations, the error syndrome is
made available.
The IDT49C460s incorporate two built-in diagnostic modes.
Both simplify testing by allowing for diagnostic data to be
entered into the device and to execute system diagnostics
functions.
They are fabricated using a CMOS technology designed for
high-performance and high-reliability. The devices are pack-
aged in a 68-pin ceramic PGA, PLCC and Ceramic Quad
Flatpack.
Military grade product is manufactured in compliance with
the latest revision of MIL-STD-883, Class B, making it ideally
suited to military temperature applications demanding the
highest level of performance and reliability.
1
FUNCTIONAL BLOCK DIAGRAM
DATA
LATCH
ERROR
CORRECT
ERROR
DECODE
MUX
DATA
LATCH
CHECK BIT
GENERATE
MUX
MUX
CHECK BIT
IN LATCH
DIAGNOSTIC
LATCH
SYNDROME
GENERATE
ERROR
DETECT
CONTROL
LOGIC
MUX
8
8
8
5
8
8
8
32
32
4
32
13
CB0–7
DATA0–31
OE BYTE0–3
LEIN
LEDIAG
LEOUT/
GENERATE
CORRECT
CODE ID1,0
DIAG MODE1,0
SC0–7
OESC
ERROR
MULT ERROR
2584 drw 01
IDT49C460
IDT49C460A
IDT49C460B
IDT49C460C
IDT49C460D
IDT49C460E


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32 


Datasheet Download




Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn