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Intersil Electronic Components Datasheet

ACTS630MS Datasheet

Radiation Hardened EDAC (Error Detection and Correction)

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DATASHEET
ACTS630MS
Radiation Hardened EDAC (Error Detection and Correction)
FN3204
Rev 1.00
January 1996
Features
• Devices QML Qualified in Accordance with MIL-PRF-38535
• Detailed Electrical and Screening Requirements are
Contained in SMD# 5962-96721 and Intersil’s QM Plan
• 1.25 Micron Radiation Hardened SOS CMOS
• Total Dose >300K RAD (Si)
• Single Event Upset (SEU) Immunity: <1 x 10-10 Errors/
Bit/Day (Typ)
• SEU LET Threshold>100 MEV-cm2/mg
• Dose Rate Upset>1011 RAD (Si)/s, 20ns Pulse
• Dose Rate Survivability>1012 RAD (Si)/s, 20ns Pulse
• Latch-Up Free Under Any Conditions
• Military Temperature Range-55oC to +125oC
• Significant Power Reduction Compared to ALSTTL
Logic
• DC Operating Voltage Range 4.5V to 5.5V
• Input Logic Levels
- VIL = 0.8V Max
- VIH = VCC/2 Min
• Input Current 1A at VOL, VOH
• Fast Propagation Delay37ns (Max), 24ns (Typ)
Description
The Intersil ACTS630MS is a Radiation Hardened 16-bit parallel
error detection and correction circuit. It uses a modified Ham-
ming 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 form memory and checked for errors. Single bit errors in
the 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.
The ACTS630MS utilizes advanced CMOS/SOS technology to
achieve high-speed operation. This device is a member of a
radiation hardened, high-speed, CMOS/SOS Logic Family.
The ACTS630MS is supplied in a 28 lead Ceramic Flatpack (K
suffix) or a 28 Lead Ceramic Dual-In-Line Package (D suffix).
Pinouts
28 PIN CERAMIC DUAL-IN-LINE, MIL-STD-1835 DESIGNATOR
CDIP-T28, LEAD FINISH C
TOP VIEW
DEF 1
DB0 2
DB1 3
DB2 4
DB3 5
DB4 6
DB5 7
DB6 8
DB7 9
DB8 10
DB9 11
DB10 12
DB11 13
GND 14
28 VCC
27 SEF
26 S1
25 S0
24 CB0
23 CB1
22 CB2
21 CB3
20 CB4
19 CB5
18 DB15
17 DB14
16 DB13
15 DB12
28 PIN CERAMIC FLATPACK, MIL-STD-1835 DESIGNATOR
CDFP3-F28, LEAD FINISH C
TOP VIEW
DEF
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
DB8
DB9
DB10
DB11
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28 VCC
27 SEF
26 S1
25 S0
24 CB0
23 CB1
22 CB2
21 CB3
20 CB4
19 CB5
18 DB15
17 DB14
16 DB13
15 DB12
Ordering Information
PART NUMBER
5962F9672101VXC
5962F9672101VYC
ACTS630D/Sample
ACTS630K/Sample
ACTS630HMSR
TEMPERATURE RANGE
-55oC to +125oC
-55oC to +125oC
25oC
25oC
25oC
SCREENING LEVEL
MIL-PRF-38535 Class V
MIL-PRF-38535 Class V
Sample
Sample
Die
PACKAGE
28 Lead SBDIP
28 Lead Ceramic Flatpack
28 Lead SBDIP
28 Lead Ceramic Flatpack
Die
FN3204 Rev 1.00
January 1996
Page 1 of 4


Intersil Electronic Components Datasheet

ACTS630MS Datasheet

Radiation Hardened EDAC (Error Detection and Correction)

No Preview Available !

ACTS630MS
Function Tables
Control Functions
MEMORY
CYCLE
WRITE
READ
READ
READ
CONTROL
S1 S0
Low Low
Low High
High
High
High
Low
EDAC FUNCTION
DATA I/O
Generates Checkword Input Data
Read Data and Check- Input Data
word
Latch and Flag Error
Latch Data
Correct Data Word and Output Corrected
Generate Syndrome Bits Data
CHECKWORD
Output Checkword
Input Checkword
Latch Checkword
Output Syndrome
Bits
ERROR FLAGS
SEF
DEF
Low Low
Low Low
Enabled
Enabled
Enabled
Enabled
Check Word Generation
16-BIT DATA WORD
CHECKWORD BIT
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
CB0
XX
XX
XXX
X
CB1 X X X X X X X X
CB2 X X X X X X X X
CB3 X X X
XX
XXX
CB4 X X X X X
XXX
CB5 X X X X X X X X
NOTE: The six check bits are parity bits derived from the matrix of data bits as indicated by “x” for each bit
Error Syndrome Codes
ERROR LOCATIONS
SYNDROME
ERROR
DB
CB NO
CODE
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 1 2 3 4 5 ERROR
CB0
L LHL LHHHL L LHHLHHLHHHHH
H
CB1
LHL LHL LHLHHLHHLHHLHHHH
H
CB2
HL LHL LHLHLHHLHHLHHLHHH
H
CB3
L L LHHHL LHHL L LHHHHHHLHH
H
CB4
HHHL L L L LHHHHHL L LHHHHLH
H
CB5
HHHHHHHHL L L L L L L LHHHHHL
H
Error Functions
TOTAL NUMBER OF ERRORS
16-BIT DATA
6-BIT CHECKWORD
00
10
01
11
20
02
SEF
Low
High
High
High
High
High
ERROR FLAGS
DEF
Low
Low
Low
High
High
High
DATA CORRECTION
Not Applicable
Correction
Correction
Interrupt
Interrupt
Interrupt
FN3204 Rev 1.00
January 1996
Page 2 of 4


Part Number ACTS630MS
Description Radiation Hardened EDAC (Error Detection and Correction)
Maker Intersil Corporation
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