Military & Space Products
HLX6228
128K x 8 STATIC RAM—Low Power SOI
FEATURES
RADIATION
OTHER
• Fabricated with RICMOS™ IV Silicon on Insulator
• Read/Write Cycle Times
≤ 32 ns (-55 to 125°C)
(SOI) 0.7 µm Low Power Process (Leff = 0.55 µm)
• Total Dose Hardness through 1x106 rad(Si)
• Neutron Hardness through 1x1014 cm-2
• Typical Operating Power <9 mW/MHz
• JEDEC Standard Low Voltage
CMOS Compatible I/O
• Dynamic and Static Transient Upset Hardness
through 1x109 rad(Si)/s
• Single 3.3 V 0.3 V Power Supply
• Asynchronous Operation
• Dose Rate Survivability through 1x1011 rad(Si)/s
• Soft Error Rate of <1x10-10 Upsets/bit-day in Geosyn-
chronous Orbit
• Packaging Options
– 32-Lead CFP (0.820 in. x 0.600 in.)
– 40-Lead CFP (0.775 in. x 0.710 in.)
• No Latchup
GENERAL DESCRIPTION
The 128K x 8 Radiation Hardened Static RAM is a high
performance 131,072 word x 8-bit static random access
memory with industry-standard functionality. It is fabricated
with Honeywell’s radiation hardened technology, and is
designed for use in low voltage systems operating in radiation
environments. The RAM operates over the full military
temperature range and requires only a single 3.3 V 0.3V
power supply. The RAM is compatible with JEDEC standard
low voltage CMOS I/O. Power consumption is typically less
than 9 mW/MHz in operation, and less than 2 mW when de-
selected.The RAM read operation is fully asynchronous, with
an associated typical access time of 32 ns at 3.3 V.
Honeywell’s enhanced SOI RICMOS™IV (Radiation Insensi-
tive CMOS) technology is radiation hardened through the use
of advanced and proprietary design, layout and process
hardeningtechniques.TheRICMOS™IVlowpowerprocessis
a SIMOX CMOS technology with a 150 Å gate oxide and a
minimum drawn feature size of 0.7 µm (0.55 µm effective gate
length—Leff). Additional features include tungsten via plugs,
Honeywell’s proprietary SHARP planarization process and a
lightly doped drain (LDD) structure for improved short channel
reliability. A 7 transistor (7T) memory cell is used for superior
single event upset hardening, while three layer metal power
bussing and the low collection volume SIMOX substrate
provide improved dose rate hardening.
Solid State Electronics Center • 12001 State Highway 55, Plymouth, MN 55441 • (800) 323-8295 • http://www.myspaceparts.com