HS-65647RH
Radiation Hardened
8K x 8 SOS CMOS Static RAM
August 1995
Features
Functional Diagram
• 1.2 Micron Radiation Hardened SOS CMOS
- Total Dose 3 x 105 RAD (Si)
- Transient Upset >1 x 1011 RAD (Si)/s
- Single Event Upset < 1 x 10-12 Errors/Bit-Day
• Latch-up Free
AI
ROW
DECODER
128 X 512
MEMORY ARRAY
ROW
I/O0
• LET Threshold >250 MEV/mg/cm2
• Low Standby Supply Current 10mA (Max)
• Low Operating Supply Current 100mA (2MHz)
• Fast Access Time 50ns (Max), 35ns (Typ)
• High Output Drive Capability
INPUT
DATA
CIRCUIT
COLUMN I/O
COLUMN DECODER
I/O7
AI COL
E2
• Gated Input Buffers (Gated by E2)
• Six Transistor Memory Cell
E1
G
CONTROL
CIRCUIT
• Fully Static Design
W
• Asynchronous Operation
• CMOS Inputs
• 5V Single Power Supply
• Military Temperature Range -55oC to +125oC
TRUTH TABLE
E1
X
1
E2
G
X
X
1
W
X
X
1
MODE
Low Power Standby
Disabled
• Industry Standard JEDEC Pinout
0
1
1
1
1
Description
The Intersil HS-65647RH is a fully asynchronous 8K x 8
radiation hardened static RAM. This RAM is fabricated using
the Intersil 1.2 micron silicon-on-sapphire CMOS technology.
This technology gives exceptional hardness to all types of
radiation, including neutron fluence, total ionizing dose, high
intensity ionizing dose rates, and cosmic rays.
0
Enabled
0
0
1
Read
0
X
0
Write
Low power operation is provided by a fully static design. Low
standby power can be achieved without pull-up resistors,
due to the gated input buffer design.
Ordering Information
PART NUMBER
HS1-65647RH-Q
TEMPERATURE RANGE
PACKAGE
o
o
-55 C to +125 C
28 Lead SBDIP
28 Lead SBDIP
28 Lead SBDIP
28 Lead SBDIP
o
o
HS1-65647RH-8
-55 C to +125 C
o
o
HS1-65647RH/Proto
HS1-65647RH/Sample
HS9-65647RH-Q
-55 C to +125 C
o
+25 C
o
o
-55 C to +125 C
28 Lead Ceramic Flatpack
28 Lead Ceramic Flatpack
28 Lead Ceramic Flatpack
28 Lead Ceramic Flatpack
36 Lead Ceramic Flatpack
o
o
HS9-65647RH-8
-55 C to +125 C
o
o
HS9-65647RH/Proto
HS9-65647RH/Sample
HS9A-65647RH-Q
-55 C to +125 C
o
+25 C
o
o
-55 C to +125 C
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Spec Number 518729
File Number 2928.2
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